Abstract

A mechanical actuation system for a light fixture that allows for translation of an array of optics relative to an array of light sources in a defined plane. The system can prevent undesired movement such as rotation or out-of-plane motion. A simple and intuitive user interface enables a user to point a resulting light beam in a desired direction without requiring an understanding of the internal mechanical system. The user interface may include a manually manipulated touch point such as a joystick, knob, or other interface.

IPC Classes  ?

• F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
• F21V 14/08 - Controlling the distribution of the light emitted by adjustment of elements by movement of screens
• F21V 14/00 - Controlling the distribution of the light emitted by adjustment of elements
• F21V 14/06 - Controlling the distribution of the light emitted by adjustment of elements by movement of refractors

Abstract

The backfiring optical systems for directional luminaires described herein provide engineered diffusion and tailoring of the beam to correct undesirable artifacts. In one embodiment a back-firing optical system comprises a light source, a solid lens having an entry face and a back face, and a surface reflector. The surface reflector is disposed in close proximity to the lens, and spaced apart from the back face of the lens by an air gap.

IPC Classes  ?

• F21V 5/04 - Refractors for light sources of lens shape
• F21V 7/00 - Reflectors for light sources
• F21V 7/08 - Optical design with elliptical curvature
• F21V 7/09 - Optical design with a combination of different curvatures
• F21V 9/00 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
• F21V 9/14 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light

Abstract

Methods for forming optical articles with antireflective nanostructured (ARN) surfaces. An aluminum layer is deposited or otherwise applied to the cavity of an injection mold tool. Sequential chemical treatments such as anodization and etching steps form an ARN mold texture on the interior surface of the cavity. The ARN mold texture is a negative of a desired surface texture of the article. During injection molding, the desired ARN surface is thereby produced in the optical article.

IPC Classes  ?

• C23F 1/20 - Acidic compositions for etching aluminium or alloys thereof
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 45/37 - Mould cavity walls
• B29D 11/00 - Producing optical elements, e.g. lenses or prisms
• C25D 11/02 - Anodisation
• C25D 11/04 - Anodisation of aluminium or alloys based thereon
• C25D 11/06 - Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
• C25D 11/08 - Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
• C25D 11/12 - Anodising more than once, e.g. in different baths
• C25D 11/24 - Chemical after-treatment
• C25D 11/36 - Phosphatising
• G02B 1/118 - Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
• B29L 11/00 - Optical elements, e.g. lenses, prisms

Goods & Services

LED light fixtures that are adjustable and controllable.

Abstract

A Selected-area Ultraviolet Disinfection (SUD) system which enables increased frequency of ultraviolet light treatment of spaces by improving the convenience, cost, safety, and/or efficacy. The core utility of the SUD system is to frequently and safely disinfect spaces where occupants are conducting their normal activities, enabled by a system constructed with a disinfecting light source that can direct and irradiate only selected areas (and corresponding volumes) that sensing and control components have determined are safe to disinfect, i.e. are not currently occupied.

IPC Classes  ?

• A61L 2/10 - Ultraviolet radiation
• A61L 2/08 - Radiation
• A61L 2/16 - Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lensesAccessories therefor using chemical substances
• A61L 2/28 - Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour

Abstract

Methods for forming optical articles with antireflective nanostructured (ARN) surfaces. An aluminum layer is deposited or otherwise applied to the cavity of an injection mold tool. Sequential chemical treatments such as anodization and etching steps form an 5 ARN mold texture on the interior surface of the cavity. The ARN mold texture is a negative of a desired surface texture of the article. During injection molding, the desired ARN surface is thereby produced in the optical article.

IPC Classes  ?

• G02B 1/118 - Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
• G02B 1/11 - Anti-reflection coatings
• B29C 45/73 - Heating or cooling of the mould
• C25D 11/02 - Anodisation
• C23F 1/20 - Acidic compositions for etching aluminium or alloys thereof

Goods & Services

(1) LED light fixtures that are adjustable and controllable.

Abstract

A light emitting diode chip or array of such chips is covered by a polymer layer that may include particles of phosphor or other materials to alter the spectrum of light. A surface of the polymer layer has a moth-eye structure. Sheets of polymer may be produced with the moth-eye texture imparted on one side via nano-imprint, embossing, or other procedures, which may then be laminated onto the LED or an LED Chip on Board (COB) array. In another approach, a smooth sheet of polymer is laminated onto the LED or COB array and then embossed or imprinted with the moth-eye structure. The moth-eye structure may further comprise the curved surface of a dome, produced, for example, using a dome-shaped mold that includes the moth-eye structure.

IPC Classes  ?

• H01L 33/50 - Wavelength conversion elements
• H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
• H01L 33/54 - Encapsulations having a particular shape

Abstract

A steerable illumination fixtures include an emitting source and a refractive optical system that steers an emitted beam by relative translation of the emitting source against the optical system. The light emitting source may be placed along an optical axis of one or more lenses to produce an output beam along that axis, or translated in-plane (orthogonal to the optical axis) relative to the lenses to produce a steered beam. The optical system may include refractive lenses and in some embodiments mixing channels and/or one or more baffles with apertures. The design is typically optimized to produce a round, uniform beam that retains approximately the same power level and beam width as it is steered. It is beneficial, but not required, that a second lens have a diameter equal to or larger than a first lens. The lenses may be configured so that the effective focal plane of the two lenses together is located approximately at the plane of the light emitting source.

IPC Classes  ?

• F21V 7/00 - Reflectors for light sources
• F21V 7/04 - Optical design
• F21V 14/00 - Controlling the distribution of the light emitted by adjustment of elements
• F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors

Abstract

An array of LEDs (40) is supported by a support mechanism (65) that both supports conductors (66,68) leading to the LEDs (40) and sinks heat from the LEDs (40). The support mechanism may be a transparent heat-conducting sheet (65) or an array of cantilevered arms at different angles that support the LEDs (40) and sink heat. This reduces the blockage of light. The LEDs (40) are positioned generally in the focal plane of an array of concave mirrors (38) that collimate the light. The LEDs (40) and array of mirrors (38) are translatable with respect to one another to steer the aggregate light beam to customize the emission. In another embodiment, multiple LEDs are positioned over each mirror in the mirror array, and the combination of LEDs illuminated over each mirror is used to steer the aggregate light beam from the luminaire.

IPC Classes  ?

• F21V 7/00 - Reflectors for light sources
• F21V 14/02 - Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
• F21V 14/04 - Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
• F21Y 109/00 - Light sources with light-generating elements disposed on transparent or translucent supports or substrates
• F21Y 105/16 - Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
• F21Y 115/10 - Light-emitting diodes [LED]

Abstract

The system captures and concentrates sunlight for transmission to interior spaces or to a PV system. A solar collector uses arrayed refractive lenses (22), opposing concave focusing mirrors (88), and a movable coupling sheet (30) forming part of a lightguide. The lenses and mirrors have an asymmetric shape, such as having aspect ratios of 3:4 or 1:2, so as to have an asymmetric aperture to better receive light at the different ranges of angles of the sun's rays over the course of a year. The long axis of the apertures is generally oriented in an East-West. The movable sheet contains small angled mirrors (32), and the sheet is translated to position the angled mirrors at the focal points of the sunlight for maximum deflection of the sunlight to an output of the collection system. A position sensor provides feedback regarding the position of the angled mirrors relative to the focal points.

IPC Classes  ?

• G02B 19/00 - Condensers
• F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
• H01L 31/054 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
• F24S 23/30 - Arrangements for concentrating solar rays for solar heat collectors with lenses

Abstract

A luminaire for providing configurable static lighting or dynamically-adjustable lighting. The luminaire uses an array of focusing elements that act on light provided via a corresponding array of sources or via an edge-lit lightguide. Designs are provided for adjusting the number of distinct beams produced by the luminaire, as well as the angular width, angular profile, and pointing angle of the beams. Designs are also provided for systems utilizing the adjustable luminaires in various applications.

IPC Classes  ?

• G02B 19/00 - Condensers
• F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
• F21K 9/61 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
• G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
• G02B 3/00 - Simple or compound lenses

Abstract

The system captures and concentrates sunlight for transmission to interior spaces or to a PV system. A solar collector uses arrayed refractive lenses (20) and opposing concave focusing mirrors (22) and a movable coupling sheet (30) forming part of a lightguide (26). The transparent sheet (30) contains small angled mirrors (32), where each angled mirror (32) corresponds to a particular set of the lenses/focusing mirrors and is in the focal plane. The lightguide (26) also includes a fluid (28) surrounding the transparent sheet (30), and lower index cladding layers (29) sandwich the fluid. The sheet (30) is translated within the fluid (28) by an actuator to position the angled mirrors (32) at the focal points of the sunlight for maximum deflection of the sunlight to an edge of the lightguide (26) for extraction to a light transmission system or to a PV system. A position sensor on the sheet (30) provides feedback regarding the position of the angled mirrors (32) relative to the focal points.

IPC Classes  ?

• F24S 23/00 - Arrangements for concentrating solar rays for solar heat collectors
• F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
• F24S 23/30 - Arrangements for concentrating solar rays for solar heat collectors with lenses
• F24S 23/70 - Arrangements for concentrating solar rays for solar heat collectors with reflectors
• G02B 6/35 - Optical coupling means having switching means

Abstract

An automatic optical coupling device that uses liquid to couple focused light into a light-guide is described. The liquid moves within a chamber or layer via the thermocapillary effect in order to automatically track and couple a moving spot of focused light. Also provided is the application of these coupling devices in an array feeding into a common light-guide, optical designs to improve the performance of these arrays, and the application of such arrays to light collection.

IPC Classes  ?

• G02B 6/00 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings

Abstract

An automatic optical coupling device that uses liquid to couple focused light into a light-guide is described. The liquid moves within a chamber or layer via the thermocapillary effect in order to automatically track and couple a moving spot of focused light. Also provided is the application of these coupling devices in an array feeding into a common light-guide, optical designs to improve the performance of these arrays, and the application of such arrays to light collection.

IPC Classes  ?

• G02B 6/26 - Optical coupling means