A method of edge detection with an optical measuring machine including aligning a test object with a lens system having a variable size aperture, wherein the lens system is operable to form an image of the test object on a digital sensor having an array of addressable pixels, and wherein the variable size aperture is operable to image points of the test object on the digital sensor at different spot sizes. Setting the variable size aperture to a first size and binning contiguous clusters of the addressable pixels into image pixels having a first size in accordance with the number of addressable pixels within each of the image pixels. Identifying contrast variations of the test object imaged onto the digital detector over a number of image pixels at the variable aperture first size, whereby an area of the test object is imaged at a first effective magnification.
An optical alignment system having a field of view comprising an illumination system having an illumination pupil and a light source, wherein the illumination system produces a first illumination angular distribution having a first illumination axis, an imaging system having an imaging sensor comprising at least one detector element, and an imaging pupil, and an acceptance cone of the imaging system having an optical axis, wherein at least a portion of the imaging pupil is filled by the illumination system output when a portion of the first illumination angular distribution overlaps with the acceptance cone, and a first tapered substrate having a first tapered and transmissive surface, the first tapered substrate removably disposed in object space between the illumination system and the imaging system, wherein the tapered substrate is rotated and a change in signal intensity is monitored to quantify field dependent alignment between the illumination system and the imaging system.
An optical alignment system having a field of view comprising an illumination system having an illumination pupil and a light source, wherein the illumination system produces a first illumination angular distribution having a first illumination axis, an imaging system having an imaging sensor comprising at least one detector element, and an imaging pupil, and an acceptance cone of the imaging system having an optical axis, wherein at least a portion of the imaging pupil is filled by the illumination system output when a portion of the first illumination angular distribution overlaps with the acceptance cone, and a first tapered substrate having a first tapered and transmissive surface, the first tapered substrate removably disposed in object space between the illumination system and the imaging system, wherein the tapered substrate is rotated and a change in signal intensity is monitored to quantify field dependent alignment between the illumination system and the imaging system.
G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
5.
PARTIAL COHERENCE MITIGATION IN VIDEO MEASUREMENT SYSTEMS VIA ILLUMINATION APODIZATION
A video measurement system for measuring a test object comprising an imaging system having an imager having an imaging pupil, the imager arranged for viewing at least a portion of a silhouette of a test object by receiving light transmitted by the test object over a first angular extent, an illumination system having an optical axis and emitting an illumination distribution of light along an optical path, the illumination system comprising a lens system and a subassembly having an illumination source, a pupil aperture, and a first polarizer, the first polarizer having a diameter that is smaller than the pupil aperture, and a second polarizer overlapping the first polarizer, the second polarizer having a diameter that is larger than the first polarizer, the second polarizer configured to rotate independent of and relative to the subassembly.
G02B 26/02 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
6.
Partial coherence mitigation in video measurement systems via illumination apodization
A video measurement system for measuring a test object comprising an imaging system comprising an imager having an imaging pupil, the imager arranged for viewing at least a portion of a silhouette of the test object by receiving light transmitted by the test object over a first angular extent; and an illumination system comprising (i) an illumination source; (ii) output having a second angular extent in object space that is larger than the first angular extent received by the imaging pupil; and (iii) a substrate arranged to diffuse light from the illumination source, the substrate having an axial centerline and a light obscuration element, wherein the light obscuration element is at least approximately coaxial to the axial centerline of the substrate, and wherein the pupils of the illumination and imaging systems are in at least approximately conjugate image planes.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
7.
NON-INVASIVE ALIGNMENT METHOD AND SYSTEM FOR IMAGER-ILLUMINATOR OPTICAL MEASUREMENT MACHINES
A backlight optical alignment system comprises an illumination system having an illumination pupil and an illuminator configured to generate an output, wherein the illumination system includes a rotationally symmetric illumination distribution having an illumination axis, an imaging system having an imaging sensor comprising at least one detector element, an imaging pupil, and an acceptance cone in object space of the imaging system having an optical axis, wherein at least a portion of the imaging pupil is filled by the illumination system output when a portion of the illumination distribution overlaps with the acceptance cone, and a first substrate disposed in object space between the illumination system and the imaging system, wherein the solid substrate is adjustable to generate a change in signal intensity from the imaging sensor when the illumination axis of the illumination distribution is misaligned with the optical axis of the acceptance cone.
G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
An optical imaging system for a dimensional measuring machine including a digital sensor having an array of addressable pixels, a lens system that provides for forming an image of a test object on the digital sensor, and a variable size aperture of the lens that changes an f-number of the lens system for imaging points of the test object on the digital sensor at different spot sizes. An aperture controller varies the aperture size. An image controller groups contiguous clusters of one or more of the pixels having a common output such that the number of pixels within each of the clusters having a common output can be varied. A magnification controller that works in conjunction with the aperture controller and the image controller provides for (a) increasing the number of pixels within each of the clusters having a common output in accordance with an increase in the spot sizes at which points of the test object are imaged and (b) decreasing the number of pixels within each of the clusters having a common output in accordance with a decrease in the spot sizes at which points of the test object are imaged.
An optical imaging system for a dimensional measuring machine including a digital sensor having an array of addressable pixels, a lens system that provides for forming an image of a test object on the digital sensor, and a variable size aperture of the lens that changes an f-number of the lens system for imaging points of the test object on the digital sensor at different spot sizes. An aperture controller varies the aperture size. An image controller groups contiguous clusters of one or more of the pixels having a common output such that the number of pixels within each of the clusters having a common output can be varied. A magnification controller that works in conjunction with the aperture controller and the image controller provides for (a) increasing the number of pixels within each of the clusters having a common output in accordance with an increase in the spot sizes at which points of the test object are imaged and (b) decreasing the number of pixels within each of the clusters having a common output in accordance with a decrease in the spot sizes at which points of the test object are imaged.
A video measurement system for measuring a test object comprising an imaging system comprising an imager having an imaging pupil, the imager arranged for viewing at least a portion of a silhouette of the test object by receiving light transmitted by the test object over a first angular extent; and an illumination system comprising (i) an illumination source; (ii) output having a second angular extent in object space that is larger than the first angular extent received by the imaging pupil; and (iii) a substrate arranged to diffuse light from the illumination source, the substrate having an axial centerline and a light obscuration element, wherein the light obscuration element is at least approximately coaxial to the axial centerline of the substrate, and wherein the pupils of the illumination and imaging systems are in at least approximately conjugate image planes.
A probe for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A polarizing fiber optically coupled within the probe body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the probe body and also transmits a measurement beam from the probe body toward a detector. An adjustable beam manipulator is provided for angularly redistributing the reference beam along the reference arm.
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01D 5/26 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light
12.
Partial coherence range sensor pen connected to the source/detector by a polarizing fiber
A probe for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A polarizing fiber optically coupled within the probe body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the probe body and also transmits a measurement beam from the probe body toward a detector. An adjustable beam manipulator is provided for angularly redistributing the reference beam along the reference arm.
An alignment system for an imaging sensor of a coordinate measuring machine incorporates a reference surface associated with a stage of the measuring machine but instead of imaging the reference surface as a location marker, the reference surface is incorporated into a combined imaging system together with the imaging sensor for imaging a feature associated with the imaging sensor. The imaged feature can be an internal part of the imaging sensor, such as an internal aperture, or an external feature in a fixed relationship with the imaging sensor, such as a lens hood.
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes
14.
Alignment system for imaging sensors in multiple orientations
An alignment system for an imaging sensor of a coordinate measuring machine incorporates a reference surface associated with a stage of the measuring machine but instead of imaging the reference surface as a location marker, the reference surface is incorporated into a combined imaging system together with the imaging sensor for imaging a feature associated with the imaging sensor. The imaged feature can be an internal part of the imaging sensor, such as an internal aperture, or an external feature in a fixed relationship with the imaging sensor, such as a lens hood.
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G05B 19/401 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
A touch probe for sensing the position of a surface, having a housing and a moving assembly supported within the housing and including a flexible reflective element, a spacer element, and a semitransparent element, wherein a reflective surface of the flexible reflective element and a surface of the semitransparent element opposing the reflective surface are separated by the spacer element, and a stylus connected to the flexible reflective element. The moving assembly and stylus are configured such that movement of the stylus responsive to a force on the stylus causes the flexible reflective element to flex and change distances between points on the reflective surface of the flexible reflective element and on the opposing surface of the semitransparent element. A coherent light source provides coherent light incident upon the semitransparent element and directed through the semitransparent element towards the reflective surface of the flexible reflective element, such that interference fringes are created dependent upon separation distances between the reflective surface of the reflective element and the opposing surface of the semitransparent element. A detector senses changes in the interference fringes patterns in response to flexing of the flexible element.
09 - Scientific and electric apparatus and instruments
Goods & Services
Hardware comprising optical instruments, namely, cameras and lights and flashes for use with cameras, motion platforms and downloadable and recorded computer software for the purpose of non-contact 3-dimensional surface capture, digitization and measurement of real objects, as well as processing of the resulting 3-dimensional images; video measuring microscopes; optical comparators for optical inspection and dimensional measurement of parts and downloadable and recorded computer software therefor; devices for calibrating the magnification of zoom optical systems; motorized video microscope with zoom optical system, video camera, and downloadable and recorded software for dimensional inspection of parts; motorized multisensor measuring system and downloadable and recorded software for dimensional inspection and measurement of manufactured parts; coordinate measuring machines and parts thereof; measuring apparatus, namely, optical comparators for optical inspection and dimensional measurement of parts, and electro-optical instruments for use in inspection and measurement of industrial components; measuring apparatus, namely, opto-mechanical sensors and downloadable and recorded computer software for dimensional inspection of manufactured components; downloadable and recorded computer programs for video inspection and identity of product edges; non-contact video measuring equipment employing premium/precision optics for imaging in dimensional metrology; motorized video microscope with zoom optical system, color video camera, and downloadable and recorded software to facilitate dimensional inspection of manufactured components; non-contact video measuring system device with zoom optics for inspection and measurement of parts; downloadable and recorded optical measurement software for use with metrological measuring apparatus; downloadable and recorded computer software relating to metrology
17.
Exchangeable lens module system for probes of interferometric optical measuring machines
An interferometric measuring machine includes an exchangeable lens module system for an optical probe. The probe includes a lens body containing the optical apparatus of an interferometer and a lens module containing an objective lens along an object arm of the interferometer that can be exchanged with other lens modules for varying the measuring characteristics of the probe. The lens modules are adapted to accommodate objective lenses having different focal lengths while maintaining a desired optical path length of the object arm of the interferometer.
A touch probe for sensing the position of a surface, having a housing and a moving assembly supported within the housing and including a flexible reflective element, a spacer element, and a semitransparent element, wherein a reflective surface of the flexible reflective element and a surface of the semitransparent element are separated by the spacer element, and a stylus connected to the flexible reflective element. Movement of the stylus responsive to a force causes the flexible reflective element to flex and change distances between points on the reflective surface and on the surface of the semitransparent element. Coherent light incident upon the semitransparent element and directed towards the reflective surface creates interference fringes dependent upon separation distances between the reflective surface and the surface of the semitransparent element. A detector senses changes in the interference fringes patterns in response to flexing of the flexible element.
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
An optical measuring system for a measuring machine includes at least two scanning devices for intermittently moving through alternately timed sequences of static measuring positions at which a measuring beam is directed to and from a test object. An optical switch selectively routes the measuring beam through any one of the scanning devices that has settled into one of the static measuring positions.
An optical measuring system for a measuring machine includes at least two scanning devices for intermittently moving through alternately timed sequences of static measuring positions at which a measuring beam is directed to and from a test object. An optical switch selectively routes the measuring beam through any one of the scanning devices that has settled into one of the static measuring positions.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
An articulated sensor head includes three different sensor modules. A first of the sensor modules is carried on an extended shank that is mounted in a pivotable fashion from an articulating wrist. A housing carrying a second and a third of the sensor modules is releasably fastened to the extended shank. The second and third sensor modules are carried by the housing in a fixed angular orientation with respect to an orientation of the first sensor module.
G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
22.
VIDEO MEASURING SYSTEM WITH DUAL-ACTING RETICLE PROJECTOR FOR FOCUSING AND ALIGNMENT
A video measurement system includes an imaging system, a reticle projector for projecting an image of a reticle through the imaging system onto the test object, and a camera for capturing images of the test object together with the reticle image projected onto the test object through the imaging system. A selective reflector reflects the reticle image into the camera from a position along the imaging system in advance of the test object. A mode selector is operable in a first mode for directing the reticle image to the test object and from the test object to the camera and is operable in a second mode for directing the reticle image to the selective reflector and from the selective reflector to the camera.
An optical inspection system for capturing images of backlit test objects at two or more aperture settings includes a telecentric imaging system having a first setting associated with a first size aperture stop and a second setting associated with a second larger size aperture stop. An illumination system includes a substage illuminator incorporating (a) a first set of one or more light sources surrounded by a first barrier that defines a first size aperture stop and (b) a second set of one or more light sources located beyond the first barrier and surrounded by a second barrier that defines a second larger size aperture stop. The respective first and second size aperture stops of the illumination system image to the respective first and second size aperture stops of the telecentric imaging system at the respective first and second settings.
An optical pen for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A single mode fiber optically coupled within the pen body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the pen body and transmits a measurement beam from the pen body toward a detector. A combination and configuration of optics within the pen body provides a more compact and efficient optical pen.
An optical pen for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A single mode fiber optically coupled within the pen body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the pen body and also transmits a measurement beam from the pen body toward a detector. A combination and configuration of optics within the pen body provides a more compact and efficient optical pen.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
26.
AUTOMATIC ALIGNMENT OF A 3D MODEL TO A TEST OBJECT
A method of aligning a 3D CAD model to a test object in a machine vision system comprising steps of orienting the 3D CAD model in a model window (204), placing the test object on a motion stage in an orientation approximately matching the orientation of the 3D model (206), taking a video image of the test object with the video camera (208) and extracting a peripheral boundary in a datum plane normal to the viewing axis of the video camera (210), extracting a silhouette boundary of the 3D model in a corresponding datum plane (212), relatively positioning the silhouette boundary of the 3D model to match the peripheral boundary of the test object using a fitting algorithm (214), and matching coordinates of points in the 3D model to coordinates of corresponding points of the test object referenced within the corresponding datum plane and along the viewing axis (216).
A method of aligning a 3D CAD model to a test object in a machine vision system comprising steps of orienting the 3D CAD model in a model window, placing the test object on a motion stage in an orientation approximately matching the orientation of the 3D model, taking a video image of the test object with the video camera and extracting a peripheral boundary in a datum plane normal to the viewing axis of the video camera, extracting a silhouette boundary of the 3D model in a corresponding datum plane, relatively positioning the silhouette boundary of the 3D model to match the peripheral boundary of the test object using a fitting algorithm, and matching coordinates of points in the 3D model to coordinates of corresponding points of the test object referenced within the corresponding datum plane and along the viewing axis.
An interferometric measuring machine includes an exchangeable lens module system for an optical probe. The probe includes a lens body containing the optical apparatus of an interferometer and a lens module containing an objective lens along an object arm of the interferometer that can be exchanged with other lens modules for varying the measuring characteristics of the probe. The lens modules are adapted to accommodate objective lenses having different focal lengths while maintaining a desired optical path length of the object arm of the interferometer.
An interferometric measuring machine includes an exchangeable lens module system for an optical probe. The probe includes a lens body containing the optical apparatus of an interferometer and a lens module containing an objective lens along an object arm of the interferometer that can be exchanged with other lens modules for varying the measuring characteristics of the probe. The lens modules are adapted to accommodate objective lenses having different focal lengths while maintaining a desired optical path length of the object arm of the interferometer.
An articulated sensor head includes three different sensor modules. A first of the sensor modules is carried on an extended shank that is mounted in a pivotable fashion from an articulating wrist. A housing carrying a second and a third of the sensor modules is releasably fastened to the extended shank. The second and third sensor modules are carried by the housing in a fixed angular orientation with respect to an orientation of the first sensor module.
G01N 21/00 - Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
A recess or “pocket” is formed in at least one leg of a moving bridge assembly of a coordinate measuring machine, and in a particular embodiment in a primary leg of a moving bridge assembly, to permit a quill to move farther in the X direction to an end of a planar base surface of the coordinate measuring machine adjacent the leg without interfering with the leg. The recess formed in the leg of the moving bridge assembly permits coordinate measurements of a part whose width covers the full area of the planar surface of the base, without necessarily adding significant cost or increasing the footprint of the measurement system.
G01B 5/004 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
A recess or pocket is formed in at least one leg of a moving bridge assembly of a coordinate measuring machine, and in a particular embodiment in a primary leg of a moving bridge assembly, to permit a quill to move farther in the X direction to an end of a planar base surface of the coordinate measuring machine adjacent the leg without interfering with the leg. The recess formed in the leg of the moving bridge assembly permits coordinate measurements of a part whose width covers the full area of the planar surface of the base, without necessarily adding significant cost or increasing the footprint of the measurement system.
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
33.
ARTICULATED HEAD WITH MULTIPLE SENSORS FOR MEASURING MACHINE
An articulated sensor head includes three different sensor modules. A first of the sensor modules is carried on an extended shank that is mounted in a pivotable fashion from an articulating wrist. A housing carrying a second and a third of the sensor modules is releasably fastened to the extended shank. The second and third sensor modules are carried by the housing in a fixed angular orientation with respect to an orientation of the first sensor module.
A probe for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A single mode fiber optically coupled within the probe body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the probe body and also transmits a measurement beam from the probe body toward a detector. An adjustable beam manipulator within the probe body spatially excludes portions of the reference beam over a progression of different size portions from being focused within the acceptance cone of the single mode fiber to more closely balance the intensities of the reflected object beam and the reflected reference beam within the measurement beam.
A probe for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A single mode fiber optically coupled within the probe body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the probe body and also transmits a measurement beam from the probe body toward a detector. An adjustable beam manipulator within the probe body spatially excludes portions of the reference beam over a progression of different size portions from being focused within the acceptance cone of the single mode fiber to more closely balance the intensities of the reflected object beam and the reflected reference beam within the measurement beam.
A counterbalance and drive system for a machine slide mechanism comprising: a machine mount supporting a vertically displaceable slide mechanism (16) and a counterweight (30); a counterbalance system including a first flexible connector (48) suspended from the machine mount and interconnecting the slide mechanism (16) and the counterweight (30) so that a gravitational force acting on the slide mechanism is at least partially opposed by a gravitational force acting on the counterweight; a drive system including a second flexible connector (58) suspended from the machine mount and interconnecting the slide mechanism and the counterweight, the drive system including: a drive motor (42) operatively engaged along a length of the second flexible connector for vertically displacing the slide mechanism; and a compliant connector (46) operating within a limited range of compliance imparts a regulated amount of tension along at least a portion of the length of the second flexible connector between the engagement of the drive motor and the counterweight.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B66B 5/12 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
38.
Counterbalance and drive system for machine slide mechanism
A counterbalance and drive system for a machine slide mechanism includes a counterbalance system having a first flexible connector suspended from a machine mount and interconnecting a slide mechanism and a counterweight and a drive system having a second flexible connector suspended from the machine mount and interconnecting the slide mechanism and the counterweight. The drive system includes both a drive motor operatively engaged along a length of the second flexible connector for vertically displacing the slide mechanism and a compliant connector operating within a limited range of compliance that imparts a regulated amount of tension along at least a portion of the length of the second flexible connector between the engagement of the drive motor and the counterweight.
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
39.
FOCUSING SYSTEM FOR A TELECENTRIC OPTICAL MEASURING MACHINE
A method of focusing a telecentric imaging system (30), particularly as a part of a measuring machine (10) includes measuring an image of a feature (25) of an object (24) through the telecentric imaging system (30) in a telecentric operating mode and measuring an image of the feature (25) of the object (24) through the telecentric imaging system (30) in a non- telecentric operating mode. A value is acquired characterizing a function by which the size of the imaged feature varies in the non-telecentric mode with the relative displacement of the object (24) through the depth of field (D). The measures of the image of the feature (25) of the object (24) in the telecentric and non-telecentric modes are related to each other and to the acquired value as an estimate of a relative displacement of the object (24) from the best focus position.
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G02B 7/04 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
H04N 5/232 - Devices for controlling television cameras, e.g. remote control
40.
Focusing system for a telecentric optical measuring machine
A method of focusing a telecentric imaging system (30), particularly as a part of a measuring machine (10) includes measuring an image of a feature (25) of an object (24) through the telecentric imaging system (30) in a telecentric operating mode and measuring an image of the feature (25) of the object (24) through the telecentric imaging system (30) in a non-telecentric operating mode. A value is acquired characterizing a function by which the size of the imaged feature varies in the non-telecentric mode with the relative displacement of the object (24) through the depth of field (D). The measures of the image of the feature (25) of the object (24) in the telecentric and non-telecentric modes are related to each other and to the acquired value as an estimate of a relative displacement of the object (24) from the best focus position.
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G02B 7/08 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
H04N 5/232 - Devices for controlling television cameras, e.g. remote control
09 - Scientific and electric apparatus and instruments
Goods & Services
Software for dimensional measurement and inspection of manufactured parts for quality control purposes; computer software relating to metrology for the purpose of measurement and inspection of manufactured parts for quality control purposes; optical metrology software for dimensional measurement systems which compares a measured profile to that of a design master; optical measurement software for use with metrological measuring apparatus
Method and apparatus for scanning surfaces of a three-dimensional object employ a first sensor to acquire first data points and a second sensor to acquire second data points. The first sensor has a relatively lower accuracy and faster data point acquisition rate than the second sensor, and the second data points are assigned a higher weighting than the first data points. A three-dimensional coordinate point cloud is generated based on the both the first and second data points and their respective weighting.
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
Method and apparatus for scanning surfaces of a three-dimensional object employ a first sensor to acquire first data points and a second sensor to acquire second data points. The first sensor has a relatively lower accuracy and faster data point acquisition rate than the second sensor, and the second data points are assigned a higher weighting than the first data points. A three-dimensional coordinate point cloud is generated based on the both the first and second data points and their respective weighting.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 5/06 - Measuring arrangements characterised by the use of mechanical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
44.
Deployment mechanism for optical measurement system
An optical measurement system includes an optical sensor assembly for measuring an object located beneath the optical sensor assembly. A deployment mechanism is pivotally connected relative to the optical sensor assembly that moves a secondary measurement aid, such as a touch sensor, between a deployed position and a retracted position. When in the retracted position, the secondary measurement aid does not inhibit movement of the optical sensor with respect to the object being measured.
An optical measurement system includes an optical sensor assembly for measuring an object located beneath the optical sensor assembly. A deployment mechanism is pivotally connected relative to the optical sensor assembly that moves a secondary measurement aid, such as a touch sensor, between a deployed position and a retracted position. When in the retracted position, the secondary measurement aid does not inhibit movement of the optical sensor with respect to the object being measured.
Measurement routines are established for automating multi-sensor measuring machines. Selections of feature types, sensor types, and closest points on computer models information is processed for distinguishing whether the features intended for measurement lie on a boundary or on a surface of the part to be measured. Interactions through a graphical user interface to a code-generating computer allow for the selections to be made and corresponding measurement instructions to be generated.
A profilometer incorporating a partial coherence interferometer directs a beam containing a band of wavelengths along object and reference arms of the interferometer into respective engagements with a test object surface and a reference object surface en route to a spectrometer for measuring a spectrum of the beam. Within the object arm, the test object surface is relatively moved through a range of positions offset from a null position at which optical path lengths of the object and reference arms are equal. Modulation frequencies of the beam spectrum are calculated at a succession of different focus spot positions across the test object surface. Changes in the modulation frequency are interpreted to distinguish between optical path length differences at which the optical path length of the object arm is longer or shorter than the optical path length of the reference arm.
A probe deployment mechanism of a coordinate measuring machine provides for extending and retracting a probe. The probe is displaceable with respect to the actuator body connected to the measuring machine. A locator coupling secures the probe to the actuator body at the extended position for taking measurements. A drive coupled to the probe displaces the probe between the extended and retracted positions but at the extended position, the drive is releasable from the probe for kinetically isolating the locator coupling.
G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
G01B 7/008 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points using coordinate measuring machines
F16H 19/02 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion
52.
Probe deployment mechanism of measuring machine with isolated locator coupling
A probe deployment mechanism of a coordinate measuring machine provides for extending and retracting a probe. The probe is displaceable with respect to the actuator body connected to the measuring machine. A locator coupling secures the probe to the actuator body at the extended position for taking measurements. A drive coupled to the probe displaces the probe between the extended and retracted positions but at the extended position, the drive is releasable from the probe for kinetically isolating the locator coupling.
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
09 - Scientific and electric apparatus and instruments
Goods & Services
Software for dimensional measurement and inspection of manufactured parts for quality control purposes; computer software relating to metrology for the purpose of measurement and inspection of manufactured parts for quality control purposes.
09 - Scientific and electric apparatus and instruments
Goods & Services
Software for dimensional measurement and inspection of manufactured parts for quality control purposes; computer software relating to metrology for the purpose of measurement and inspection of manufactured parts for quality control purposes
A bearing race arrangement on a composite structure having a first coefficient of thermal expansion includes a recess formed in a surface of the composite structure for receiving a race element, at least one bearing race element disposed in the recess, the bearing race element having a coefficient of thermal expansion different from the coefficient of thermal expansion of the composite structure and a retainer securing the bearing race element to composite structure, within the recess and allowing for longitudinal expansion of the race element without creating stress on the composite structure.
09 - Scientific and electric apparatus and instruments
Goods & Services
Software for dimensional measurement and inspection of manufactured parts for quality control purposes; computer software relating to metrology for the purpose of measurement and inspection of manufactured parts for quality control purposes
A coordinate measurement machine having a feeler whose position is determined optically and a lens for use in such a machine and a method for making a lens for a coordinate measurement machine, having a flexible feeler having a sensing tip, positioned substantially at the focal point of the objective lens.
G01B 11/03 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness by measuring coordinates of points
G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
09 - Scientific and electric apparatus and instruments
Goods & Services
measuring apparatus, namely, optical comparators for optical inspection and dimensional measurement of parts, and electro-optical instruments for use in inspection and measurement of industrial components
59.
METHOD FOR AUTOMATICALLY ADJUSTING THE LEVELS OF ILLUMINATION SOURCES IN AN OPTICAL MEASUREMENT MACHINE
A process for pre-calibrating illumination sources permits illumination light intensities to be set to a near optimal level during training of an optical inspection system. Applicants have found that the illumination source intensities for a category of illuminators are sufficiently constant from machine to machine that the data collected during calibration of an illumination source on a machine using a particular type of source may be used on other machines of the same type using the same type of illumination source when combined with the reticle light intensity data for different zoom magnification's of the particular machine being used. That is, using known data for particular machine and the illumination source light intensity data for the same type of machine and illumination source permits accurate presetting of an illumination source.
A process for pre-calibrating illumination sources permits illumination light intensities to be set to a near optimal level during training of an optical inspection system. Applicants have found that the illumination source intensities for a category of illuminators are sufficiently constant from machine to machine that the data collected during calibration of an illumination source on a machine using a particular type of source may be used on other machines of the same type using the same type of illumination source when combined with the reticle light intensity data for different zoom magnification's of the particular machine being used. That is, using known data for particular machine and the illumination source light intensity data for the same type of machine and illumination source permits accurate presetting of an illumination source.
An optical comparator arranged for rear projection onto a viewing screen combines an optical projector that projects an optical image of a test part under inspection onto the viewing screen with a video projector that projects an optical image of a pixilated template pattern containing illustrated specifications of the test part onto the same viewing screen. The images of the test part and the pixilated template pattern are projected concurrently onto the viewing screen for visually comparing the form of the test part against its specified form.
A method of determining whether a part satisfies tolerance criteria includes making a multiplicity of measurements of the part, reducing the number of measured points to a number of boundary points that define a boundary within which all measured points are encompassed and comparing the boundary to a tolerance limit of a normal surface to determine whether the part conforms to the tolerance.
An illumination system shares portions of an objective of an optical inspection system. A plurality of beam-shaping optics collects light from a plurality of effective light sources and directs the light through a portion of the objective for illuminating an object under inspection. The objective includes a front relay lens, a rear relay lens, and an objective stop disposed between the front and rear relay lenses for collecting light scattered from the object and forming an image of the object with the collected light. The beam-shaping optics, which surround the objective stop, are arranged together with the associated effective light sources for non-uniformly distributing light within a range of angles required for illuminating the object.
A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating first and second cross products based on the line segments forming first and second crossing points in the determined sequence, and choosing first and second paths of the combined feature boundary according to mathematical signs of the cross products, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths.
A method of determining whether a part satisfies tolerance criteria includes making a multiplicity of measurements of the part, reducing the number of measured points to a number of boundary points that define a boundary within which all measured points are encompassed and comparing the boundary to a tolerance limit of a normal surface to determine whether the part conforms to the tolerance.
G01N 37/00 - Details not covered by any other group of this subclass
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
66.
THROUGH-THE-LENS ILLUMINATOR FOR OPTICAL COMPARATOR
An illumination system shares portions of an objective of an optical inspection system. A plurality of beam-shaping optics collects light from a plurality of effective light sources and directs the light through a portion of the objective for illuminating an object under inspection. The objective includes a front relay lens, a rear relay lens, and an objective stop disposed between the front and rear relay lenses for collecting light scattered from the object and forming an image of the object with the collected light. The beam-shaping optics, which surround the objective stop, are arranged together with the associated effective light sources for non-uniformly distributing light within a range of angles required for illuminating the object.
An illumination system shares portions of an objective of an optical inspection system. A plurality of beam-shaping optics collects light from a plurality of effective light sources and directs the light through a portion of the objective for illuminating an object under inspection. The objective includes a front relay lens, a rear relay lens, and an objective stop disposed between the front and rear relay lenses for collecting light scattered from the object and forming an image of the object with the collected light. The beam-shaping optics, which surround the objective stop, are arranged together with the associated effective light sources for non-uniformly distributing light within a range of angles required for illuminating the object.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer programs for inspection and measurement of industrial components; electro-optical instruments for use in inspection and measurement of industrial components
A machine vision system includes a table having a fixture for supporting an object under inspection above the table, a gantry supporting a camera further above the table, a docking station, and a profile light movable together with the gantry between an inspection position beneath the object and a docking position next to the docking station. Fittings are provided for releasably securing the profile light to the gantry and for releasably securing the profile light to the docking station. The profile light can be disengaged from the gantry and engaged with the docking station for moving the profile light to the docking position or disengaged from the docking station and reengaged with the gantry for moving the profile light to the inspection position.
A machine vision system includes a table having a fixture for supporting an object under inspection above the table, a gantry supporting a camera further above the table, a docking station, and a profile light movable together with the gantry between an inspection position beneath the object and a docking position next to the docking station. Fittings are provided for releasably securing the profile light to the gantry and for releasably securing the profile light to the docking station. The profile light can be disengaged from the gantry and engaged with the docking station for moving the profile light to the docking position or disengaged from the docking station and reengaged with the gantry for moving the profile light to the inspection position.
A graphical representation of a feature and associated tolerance includes a memory storing a description of the feature including at least one nominal dimension of the feature and an associated tolerance; a graphical representation of a nominal definition of the feature; and a graphical representation of the tolerance zones, derived from the nominal definition of the feature.
G06F 5/08 - Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising having a sequence of storage locations, the intermediate ones not being accessible for either enqueue or dequeue operations, e.g. using a shift register
G06F 5/06 - Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising
An actuator for selectively extending and retracting a probe in a measuring instrument comprises an actuator body, a carriage having a first aperture slidably attached to the body, and a second aperture receiving a probe holder having a probe. The first aperture of the carriage, which surrounds the actuator body, includes a first plurality of magnets disposed around an inner circumference of the aperture. The actuator body includes a lead screw, a round lead screw nut mated with the lead screw, and a second plurality of magnets arranged on a periphery of the lead screw nut, generally aligned with the first plurality of magnets. The magnets are arranged so that the carriage may be displaced with respect to the actuator body a sufficient amount that the magnets do not significantly restrain the further movement of the carriage.
An actuator for selectively extending and retracting a probe in a measuring instrument comprises an actuator body, a carriage having a first aperture slidably attached to the body, and a second aperture receiving a probe holder having a probe. The first aperture of the carriage, which surrounds the actuator body, includes a first plurality of magnets disposed around an inner circumference of the aperture. The actuator body includes a lead screw, a round lead screw nut mated with the lead screw, and a second plurality of magnets arranged on a periphery of the lead screw nut, generally aligned with the first plurality of magnets. The magnets are arranged so that the carriage may be displaced with respect to the actuator body a sufficient amount that the magnets do not significantly restrain the further movement of the carriage.
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
F16H 1/18 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes the members having helical, herring-bone, or like teeth
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer programs for inspection and measurement of industrial components; electro-optical instruments for use in inspection and measurement of industrial components.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer programs for inspection and measurement of industrial components; Electro-optical instruments for use in inspection and measurement of industrial components
An optical comparator arranged for rear projection onto a viewing screen combines an optical projector that projects an optical image of a test part under inspection onto the viewing screen with a video projector that projects an optical image of a pixilated template pattern containing illustrated specifications of the test part onto the same viewing screen. The images of the test part and the pixilated template pattern are projected concurrently onto the viewing screen for visually comparing the form of the test part against its specified form.
G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G03B 21/14 - Projectors or projection-type viewersAccessories therefor Details
An optical comparator arranged for rear projection onto a viewing screen combines an optical projector that projects an optical image of a test part under inspection onto the viewing screen with a video projector that projects an optical image of a pixilated template pattern containing illustrated specifications of the test part onto the same viewing screen. The images of the test part and the pixilated template pattern are projected concurrently onto the viewing screen for visually comparing the form of the test part against its specified form.
A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating a first cross product based on the line segments forming a first crossing point in the determined sequence, and choosing a first path of the combined feature boundary according to a mathematical sign of the first cross product, the first path extending from the first crossing point to the second crossing point in the determined sequence. The method further includes calculating a second cross product based on the line segments forming a second crossing point in the sequence, and choosing a second path of the combined feature boundary extending from the second crossing point according to a mathematical sign of the second cross product, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths.
A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating a first cross product based on the line segments forming a first crossing point in the determined sequence, and choosing a first path of the combined feature boundary according to a mathematical sign of the first cross product, the first path extending from the first crossing point to the second crossing point in the determined sequence. The method further includes calculating a second cross product based on the line segments forming a second crossing point in the sequence, and choosing a second path of the combined feature boundary extending from the second crossing point according to a mathematical sign of the second cross product, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths.
An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens.
A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors.
The invention provides a source of illumination comprising a base having mounted thereon at least one light-emitting diode light source, a parabolic reflector mounted on the base and surrounding the at least one light-emitting diode, and a transmissive diffuser at the narrow end of the parabolic reflector.
A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors.
This high performance front objective lens system intended primarily for use with a video inspection apparatus has a first lens set in the form of a doublet, with a second lens set intermediate the first lens set and the imaging plane. The second lens set includes a doublet and an adjacent lens. The overall system has an effective focal length of 50 mm, a front focal length of 38.75 mm, and a numerical aperture greater than 0.2. Further, the material of the doublets is chosen to have a small, gradual transition in index between the elements of the lens and the cement, minimizing back reflections and thereby eliminating the need for index matching coatings on the cemented surfaces of the doublets. Finally, the imaging plane of the system matches that of standard ring lights used with video inspection apparatus.
A distance detecting arrangement employs at least two sensors having different ranges and resolutions of operation. Embodiments disclosed contemplate at least four modes of operation. In a first mode, only one sensor is employed. In a second mode, a longer range and lower resolution sensor is employed until a threshold value of distance is reached, at which point a shorter range and higher resolution sensor is employed. In a third mode, both the longer range and shorter range sensors are employed simultaneously. In a fourth mode, a low resolution profile is used to rescan the object with the high resolution sensor to provide a high resolution profile measurement. Embodiments facilitate the method disclosed by including a beam redirecting apparatus and preferably include a servo position system that can move the sensors and the object relative to each other.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
An improved autofocus system and method that includes a controllable light source having at least two selectively activated substantially monochromatic output wavelengths adapted for illuminating an object; a camera receiving light from said light source reflected from a portion of said object and generating output signals responsive to said received light; a controller connected to said camera and said controllable light source for positioning said camera and sequentially illuminating a first portion of the object with at least two selectively activated substantially monochromatic output wavelengths, moving the camera to a second position and sequentially illuminating a second portion of the object with at least two selectively activated substantially monochromatic output wavelengths; and a data processor connected to said camera and receiving said output signals and for each portion, comparing the output signals associated with each wavelength and determining a focus parameter from said comparison.
An autofocus system and method that includes a controllable light source having at least two selectively activated substantially monochromatic output wavelengths adapted for illuminating an object; a camera receiving light from said light source reflected from a portion of said object and generating output signals responsive to said received light; a controller connected to said camera and said controllable light source for positioning said camera and sequentially illuminating a first portion of the object with at least two selectively activated substantially monochromatic output wavelengths, moving the camera to a second position and sequentially illuminating a second portion of the object with at least two selectively activated substantially monochromatic output wavelengths; and a data processor connected to said camera and receiving said output signals and for each portion, comparing the output signals associated with each wavelength and determining a focus parameter from said comparison.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
90.
System and method for focal length stabilization using active temperature control
An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens.
Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
An illumination system using, in place of a more typical beam splitter, two right angle triangular prisms that are aligned to each other along their respective hypotenuses to form a cube, but without any reflective materials being used at their interface, and with the two halves separated by some distance so as to create an open/air gap between the two halves. When the upper/lower cube faces are normal to an optical axis of the illumination system, the cube structure reflects virtually all of the illumination from a transverse illumination source using total internal reflection so that said illumination is reflected out of the cube along the system's optical axis. However, rotating the cube structure past the critical angle eliminates total internal reflection and allows the cube to transmit almost all illumination entering the cube out of the cube parallel to the system's optical axis.
G02B 27/12 - Beam splitting or combining systems operating by refraction only
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
Apparatus for sequentially imaging an object while maintaining focus includes a camera having a selectable image capture mode, an objective lens optically coupled to the camera, an optical range sensor operating through the objective lens, a strobe illuminator, and a controller coupled to the camera, the illuminator and the range sensor sequentially activating and deactivating the range sensor, selecting and deselecting the image capture mode only when the range sensor is deactivated, and activating and deactivating the strobe illuminator only when the image capture mode is active.
An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens.
Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
G05B 19/401 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
97.
Fitting multidimensional measurement data to tolerance zones having regard for the uncertainty of the measurements
Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software for allowing subsets of a larger computer software program in the field of metrology to operate without altering the original computer software
100.
LASER RANGE SENSOR SYSTEM OPTICS ADAPTER AND METHOD
An adapter and method for through the lens (TTL) laser range sensor probes enables use of a TTL probe of a given exit pupil size to be used with a shared objective lens requiring a entrance pupil size, as entered from the laser range sensor, that is different from the TTL probe exit pupil size Embodiments of the adapter include optics, such as a first lens and a resolving second lens that expand or contract the TTL laser radiation depending on whether the first lens is a divergmg, a negative focal length lens, or a converging, positive focal length lens, and the second lens is converging or diverging, respectively, in a Galilean arrangement Embodiments also provide a Keplerian arrangement, can function with non-collimated radiation, and can include mirrors to yield a more compact adapter Additional embodiments include at least one adjustable lens element between the first and second lenses.
