A fingerprint recognition module having backlight. At least one light-emitting source (301-304) connected to a circuit board (104) of the module is additionally arranged. A light transmission region is additionally arranged on a panel (102) of the module; meanwhile, a packaging material (508) of a fingerprint recognition chip (203) is made of a light transmission material. The packaging material (508) is a main light guide medium for light emitted by the light-emitting sources (301-304), and the light can be emitted out from the light transmission region of the panel (102) after passing through the packaging material (508). The light-emitting sources (301-304) can be disposed outside the packaging material (508) or packaged inside the packaging material (508) together with a bare core (507). A backlight function of the fingerprint recognition module is implemented in a limited space, and a light transmission pattern (101) formed in the light transmission region of the panel (102) can emit light.
A fingerprint recognition module having backlight. At least one light-emitting source (301-304) connected to a circuit board (104) of the module is additionally arranged. A light transmission region (101) is additionally arranged on a panel (102) of the module; meanwhile, the thickness of an adhesive layer (202) between a fingerprint recognition chip (203) and the panel (102) is increased. The adhesive layer (202) is a main light guide medium for light emitted by the light-emitting sources (301-304), and the light can be emitted out from the light transmission region (101) of the panel (102) after passing through the adhesive layer (202). The light-emitting sources (301-304) can be disposed outside the packaging material (508) or packaged inside the packaging material (508) together with a bare core (507). A backlight function of the fingerprint recognition module is implemented in a limited space, and a light transmission pattern formed in the light transmission region of the panel can emit light.
A fingerprint recognition module for implementing backlight by means of a light guide layer. At least one light-emitting source (301, 302, 303, 304, 601) connected to a circuit board (104) of the module is additionally arranged. A light transmission region is additionally arranged on a panel (102) of the module; meanwhile, a light guide layer having a diffusion or fluorescent function is additionally arranged on the upper surface of a packaging material (508) of a fingerprint recognition chip. The light guide layer is a main light guide medium for light emitted by the light-emitting sources (301, 302, 303, 304, 601), and the light is emitted out from the light transmission region of the panel (102) after passing through the light guide layer. The light-emitting sources (301, 302, 303, 304, 601) can be disposed outside the packaging material (508) or packaged inside the packaging material (508) together with a bare core (507). A backlight function of the fingerprint recognition module is implemented in a limited space, and a light transmission pattern (101) formed in the light transmission region of the panel (102) can emit light.
Disclosed is an interactive display system, comprising a main control unit for processing information, a display unit for generating a display image, one or more remote control units, and a monitoring module assembly; the main control unit has a communication connection with the display unit and the monitoring module assembly; each remote control unit comprises an infrared emission module assembly used to emit infrared light of two different wavelengths to the display image to generate an infrared light spot; the monitoring module assembly comprises a monitoring lens for capturing the infrared light spot within the display image, a first light splitting element, and a first and a second infrared monitoring element with respect to the different wavelength from the remote control. This disclosure provides multiple-point interaction on a single display image. User can easily interact with the display image just like the touch-panel which helps enhance interactive experience.
Provided are infrared interactive remote control devices and projection systems using same, which can distinguish an indication state and an interactive control state. A pattern disc rotatable around a rotating shaft is provided in the infrared interactive remote control device. In a normal state, a visible light source works independently, and indication pattern holes in the pattern disc are positioned on an optical path to allow visible light to pass through, so that indication light spots corresponding to the indication pattern holes are formed. When a control button is pressed down, the visible light source and an infrared light source work together, and the pattern disc is driven to rotate, so that the control pattern holes are positioned on the optical path to allow the visible light to pass through, and control light spots corresponding to the control pattern holes are formed to indicate an interactive control state.
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
F21S 10/00 - Lighting devices or systems producing a varying lighting effect
G02B 27/20 - Optical systems or apparatus not provided for by any of the groups , for optical projection, e.g. combination of mirror and condenser and objective for imaging minute objects, e.g. light-pointer
G03B 21/14 - Projectors or projection-type viewersAccessories therefor Details
G02B 27/14 - Beam splitting or combining systems operating by reflection only
G06F 3/033 - Pointing devices displaced or positioned by the userAccessories therefor
G03B 21/53 - Means for automatic focusing, e.g. to compensate thermal effects
6.
Projection system with infrared monitoring function
A projection system includes a projection module, an infrared monitoring module, and a focusing device. Lights of a projection light source (100) pass through a light splitting element (500) and a first lens group (201), and then emit out; infrared lights from outside pass through the first lens group (201) and the light splitting element (500) to an infrared monitoring module (300). Only the first lens group (201) can move back and forth and a focusing device is provided for driving the first lens group (201) to move back and forth. Optical characteristics of a projection objective (200) and a monitoring objective ensure that, during moving of the first lens group (201) driven by the focusing device, the projection objective (200) focuses clearly, and an infrared monitoring image received by an induction chip (301) meets monitoring requirements synchronously.
An auto-focusing projection system includes a projection module, an infrared monitoring module (300), an infrared source (400) provided on the projection module, and a focusing device for driving the first lens group (201) moving forward and backward. An IR light spot emitted from the infrared source falls within the monitoring scope of the infrared monitoring module, preferably inside the projected picture of the projection module or on the edge thereof, and after reflected back, it also can travel through the first lens group, and the splitting element in turn, and then be transmitted to the infrared monitoring module. Analyzing the IR light spot picture emitted from the infrared source which is collected by the infrared monitoring module, a control signal can be sent to a focusing motor to adjust the first lens group to an appropriate position, so as to realize auto-focusing.
The present invention relates to a digital light column lamp. The lamp comprises a housing, a control circuit board disposed in the housing, a light source, and a projection lens. A field angle of the projection lens is less than 8 degrees. The digital light column lamp also comprises an electronic display chip used for converting an electric signal output by the control circuit board into a corresponding digital image. The electronic display chip is disposed between the projection lens and the light source, and is electrically connected to the control circuit board. Because the electronic display chip can display all the digital images and the images are projected by using the projection lens, the digital light column lamp of the present invention can project various kinds of patterns and light columns with different colors thereby making a stage effect more spectacular and gorgeous.
A projector having saw tooth reflecting mirror includes a display screen (55), a saw tooth reflecting mirror (54), and an optical machine (51). The saw tooth reflecting mirror (54) is opposite to the display screen (55), and the modulated light beam emitted from the optical machine (51) is reflected onto the display screen (55) via the saw tooth reflecting mirror (54). The depth of the projector can be reduced by using the saw tooth reflecting mirror (54).
H04N 5/74 - Projection arrangements for image reproduction, e.g. using eidophor
H04N 9/31 - Projection devices for colour picture display
G02B 27/18 - Optical systems or apparatus not provided for by any of the groups , for optical projection, e.g. combination of mirror and condenser and objective
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