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165 results about "Colored light" patented technology

Double-color light mixing LED structure and preparation method thereof

PendingCN120916544AColored lightSemiconductor
The invention discloses a double-color light-mixing LED structure and a preparation method thereof, relates to the technical field of semiconductor photoelectronics, and realizes chip-level double-color light mixing by integrating two independent epitaxial light-emitting units on the same epitaxial wafer, thereby not only greatly simplifying the preparation process, but also remarkably improving the light mixing uniformity and the light color stability. The double-color light-mixing LED structure comprises a first epitaxial light-emitting unit in a central area, and the first epitaxial light-emitting unit emits first colored light; the second epitaxial light-emitting unit in the peripheral area emits second colored light, and the peak wavelength of the second colored light is longer than that of the first colored light; the second epitaxial light-emitting unit is arranged around the first epitaxial light-emitting unit, and the first colored light and the second colored light are emitted after being mixed.
Owner:NANCHANG UNIV +3

Rapid colored lamp assembling device based on modular structure

The utility model discloses a colored lamp rapid assembly device based on a modular structure, and belongs to the technical field of colored lamp rapid assembly. A colored lamp rapid assembling device based on a modular structure comprises a first mounting groove, a movable rod and a rack, a second mounting groove is slidably formed in one side of the first mounting groove, and a colored lamp band body is mounted at the top of the first mounting groove and the top of the second mounting groove in a limiting mode; the top of the first installation groove is fixedly provided with a second electricity induction strip matched with the colored lamp band body. Through mutual cooperation of the movable block, the spring, the movable rod and the attaching frame, the colored lamp band body is installed on the first installation groove and the second installation groove, lines on the colored lamp band body are connected through the attaching frame, and the problems that in the prior art, wires are inconvenient to connect in the connecting process, and the connecting efficiency is high are solved. Therefore, the connection is difficult, and the working efficiency is reduced.
Owner:ZIGONG TENGDA LANTERN CULTURE & ART CO LTD

Electronic devices with curved display surfaces

An electronic device may have a display mounted in a housing. The display may have a pixel array that produces images. A display cover layer may overlap the pixel array. The display cover layer may have a planar central area surrounded by a peripheral edge area with a curved cross-sectional profile. From an on-axis viewing angle, an image on the pixel array is fully viewable through the planar central area and the peripheral edge area. From an off-axis viewing angle, the image is partly viewable through the peripheral edge area and not through the central area. To avoid an undesired color cast in the partly viewable image seen through the peripheral edge area of the display cover layer, the display may be provided with color cast compensation structures such as a guest-host liquid crystal layer that exhibits an anisotropic colored light absorption characteristic, a diffuser layer, and / or other optical structures.
Owner:APPLE INC

Appearance inspection system for electronic component

PCT designated stageWO2026176980A1Image detectionFirst light
Provided is an appearance inspection system capable of accurately detecting breakoff of a terminal electrode (W1) of an electronic component. This appearance inspection system comprises: an inspection unit (100) provided with an illumination means that illuminates an inspection object (W), a conveyance means (1) that conveys the inspection object, and an imaging means (2); an inspection control unit (200) provided with an image acquisition unit (31) that uses, as an inspection image, an image signal from the inspection object acquired by the imaging means, an image processing unit (32) that performs image processing on the inspection image, a determination unit (34) that determines the inspection image, and a system control unit (35) that controls the illumination means, the conveyance means, and the imaging means; and a communication means (4) that connects the inspection unit and the inspection control unit. The illumination means is composed of an upper surface illumination device (10) and a lower surface illumination device (20) which are disposed above and below the conveyance means, respectively, so as to face each other. The upper surface illumination device is provided with an opening (15) for capturing an image of the inspection object. Each of the upper surface illumination device and the lower surface illumination device is provided with a first light source group which is disposed in a manner orthogonal to the conveyance direction of the conveyance means, a second light source group which is disposed in a manner oblique to the conveyance direction of the conveyance means, and a third light source group which is disposed in a manner horizontal to the conveyance direction of the conveyance means. The light source arrangements of the first light source group and the second light source group are in a mode in which red-colored light sources and blue-colored light sources are arranged in a staggered manner. The light source arrangement of the third light source group is in a mode in which only green-colored light sources are arranged. The imaging means is disposed such that an imaging optical axis (X) is at an elevation angle (θ) of 5-60° with respect to the conveyance direction (A) of the conveyance means at an inspection position (P) on the conveyance means.
Owner:VS TECHNOLOGY CORPORATION

A restraint distance sensing anti-puncture alarm glove and its use method

This invention relates to the field of medical and nursing device technology, and in particular to a restraint-type distance-sensing anti-extubation alarm glove and its method of use. The glove includes a restraint glove with a fixing strap on one side of its surface. A magnet is fixedly connected to the top of the fixing strap, and a magnet is disposed within the inner cavity of the magnet. This invention combines physical restraint with intelligent early warning, catheter positioning, and catheter angle adjustment. Through a specially designed enclosed space on the right side of the restraint glove's inner cavity, the range of motion of the patient's ring and little fingers is physically restricted, effectively preventing the patient from pulling the tube by clenching their fist. Simultaneously, a distance monitoring system is constructed using positioning chips one, two, and three. When hand movements pose a risk, multiple alerts are provided through different colored lights, alarm sounds, and vibrations, offering comprehensive warnings to the patient and medical staff from auditory, visual, and tactile dimensions, allowing for timely measures to prevent extubation.
Owner:南京市江宁医院

Remote color matching devices and system

The invention comprises a method and system for cost effective, convenient remote high fidelity color reproduction and matching that can be used to convey color to observers remote from the physical source of color. Such remote observers can include product consumers wishing to view a product color, for example. In a preferred embodiment, the method comprises capture of article or product reflectance spectra and the use of this spectrum to filter ambient light or directed light in the environment of a user remote from the article or product. Other embodiments of methods include various techniques to capture product spectral information and color matching functions useful for color reproduction using colored light sources. Additional systems embodiments include devices exploiting multiprimary displays to render the product color with reduced metamerism.
Owner:DAVIS DENNIS WILLARD +2

Multi-color light mixing method and apparatus, system, and computer device

PCT designated stageWO2026138953A1GamutColored light
The present application provides a multi-color light mixing method and apparatus, a system, and a computer device. The method comprises: acquiring target chromaticity coordinates and target luminance of target colored light, and chromaticity coordinates and luminance of four mixing colors; obtaining three determination regions on the basis of the chromaticity coordinates of the four mixing colors; determining a target determination region into which the target chromaticity coordinates of the target colored light fall, the target determination region being one of the three determination regions; and on the basis of chromaticity coordinates and luminance of three vertices of the target determination region and the target chromaticity coordinates of the target colored light, determining mixing proportions of the various colors required for forming the target colored light. The present application provides a novel light mixing algorithm. The three determination regions are set according to a preset directional projection manner on the basis of a color gamut range formed by four colors, so that the mixing proportions of the four colors are calculated by determining the determination region into which the target colored light falls, thereby completing light mixing on the basis of the mixing proportions, and controlling output of the target colored light.
Owner:SUZHOU OPPLE LIGHTING +1

Projector with field lens

ActiveUS12720020B2Optical axisDisplay device
A projector having a curved field lens and a displaced light modulating display. The system includes at least one light source configured to generate colored light beams, and a prism routing the light beams to the display. The curved field lens is coupled to a face of the prism, and the prism and curved field lens together decenter the light beam from the prism face and uniformly illuminate the display. A center of the display is displaced from the projection lens optical axis. The decentered light beam and the displaced display together generate a favorable shifted boresight of the created image. Dimensions of components of the projector are a function of a curvature of the curved field lens. The greater the curvature of the curved field lens, the smaller the dimensions of the components and the overall projector. The projector may be used in eyewear.
Owner:SNAP INC

Light source assembly for communication, preparation method and optical interconnection system

The invention provides a light source assembly for communication, a preparation method and an optical interconnection system, the light source assembly comprises a driving substrate, a driving circuit is arranged on the driving substrate, a plurality of Micro LED light source units are distributed on the driving substrate, the Micro LED light source units are arranged to emit light signals to corresponding optical fiber cores, the Micro LED light source units comprise a plurality of light emitting units, and the light emitting units are arranged on the driving substrate. The wave crest wavelengths of colored light generated by any two of the plurality of light emitting units are different, and the light emitting units can be independently driven by the driving circuit to generate light signals; according to the optical interconnection system, the optical signals generated by the light emitting units in the corresponding Micro LED light source units can be transmitted by the corresponding optical fiber cores, so that the data transmission efficiency of each optical fiber core is improved, and the data transmission efficiency of the optical interconnection system is further improved.
Owner:RAYSOLVE OPTOELECTRONICS (SUZHOU) CO LTD

Light emitting device

PendingCN121803831Alimited purityLimited color rendering indexLight source combinationsElectrical apparatusBlack-body radiationRadiation rays
The light-emitting device provided by the embodiment of the invention comprises an RGB light-emitting assembly and a spectrum supplementing unit, the RGB light-emitting component comprises a blue light unit, a green light unit and a red light unit of which the color purity is greater than 0.7; the RGB light-emitting assembly is used for providing color light and participating in dimming of mixed white light; the spectrum supplementing unit is used for emitting warm white light to supplement light emitted by the RGB assembly so as to emit mixed white light with the color tolerance smaller than 5SDCM; the CRI (Ra) of the spectrum supplementing unit is smaller than 75, so that the light-emitting device can emit mixed white light close to blackbody radiation within the range of 1800-2700 K through the matching of the light intensity proportion between the red light unit and the spectrum supplementing unit. The light-emitting device can realize that mixed white light is closer to blackbody radiation rays in a range of 1800K-6500K.
Owner:BRIDGELUX OPTOELECTRONICS (XIAMEN) CO LTD

Temperature-controllable disperse dye reaction kettle

The invention provides a temperature-controllable disperse dye reaction kettle, and relates to the technical field of reaction kettles, the temperature-controllable disperse dye reaction kettle comprises an outer kettle shell, the outer kettle shell is made of a high-strength material, can stably support internal components, isolates interference of an external environment on reaction in the kettle, and plays a core role in overall supporting and protection; the outer kettle shell is internally provided with an inner kettle, the inner kettle is made of a corrosion-resistant material with adaptive heat-conducting property and can be in direct contact with a disperse dye reaction system, the middle-layer heat exchange pipes are uniformly distributed along the inner wall of the inner kettle in the circumferential direction, so that the local temperature deviation in the kettle can be accurately compensated, and the temperature gradient and the micro-level of the edge and the center are avoided; the heat conduction oil is introduced into the hollow channels of the hollow stirring shaft and the paddles, and is matched with the heat dissipation holes in the surfaces of the paddles, so that a heat exchange function is permeated to a material core area, the problem of disperse dye colored light deviation caused by uneven temperature is greatly reduced, meanwhile, dye particle aggregation is effectively inhibited, and the stability and consistency of dye products are remarkably improved.
Owner:ZHEJIANG YUTAI TECH CO LTD

Illuminating system and projector thereof

The invention provides an illumination system and a projector thereof. The illumination system receives colored light of a light source module of the projector to form a projection beam and comprises a lens array element, a digital micromirror element, a refraction element and a projection lens. The lens array element is arranged on the light emitting axis of the light source module so as to carry out dodging shaping on colored light transmitted from the light source module. The digital micro-mirror element has a micro-array reflection region for modulating the reflected color light to form a projection beam to be emitted along a projection optical axis. The refractive element is arranged between the lens array element and the digital micro-mirror element and is used for amplifying the colored light transmitted from the lens array element and guiding the colored light to enter the digital micro-mirror element and cover the micro-array reflecting area. The projection lens is arranged on the projection optical axis and used for receiving the projection light beam for image projection.
Owner:QISDA OPTRONICS (SUZHOU) CO LTD +1

Multi-primary additive color mixing method and apparatus, system, and computer device

PCT designated stageWO2026138956A1GamutColored light
The present application provides a multi-primary additive color mixing method and apparatus, a system, and a computer device. The method comprises: acquiring chromaticity coordinates and luminance of four additively mixed colors; determining four corresponding determination regions according to the chromaticity coordinates of any three of the four additively mixed colors; acquiring a target chromaticity coordinate and target luminance of target colored light; determining a target determination area in which the target chromaticity coordinate of the target colored light falls, the target determination area being one of the four determination areas; and according to chromaticity coordinates and luminance of three vertices of the target determination area and the target chromaticity coordinate and the target luminance of the target colored light, determining a light mixing ratio of the colors required to form the target colored light. The present application provides a brand-new multi-primary color mixing algorithm, which cross-partitions a color gamut range defined by four primary colors to obtain four determination regions formed on the basis of any three of four additively mixed colors, and computes a light mixing ratio of the four colors by determining a determination region in which target colored light falls, so as to complete mixing on the basis of the light mixing ratio and thereby control output of the target colored light.
Owner:SUZHOU OPPLE LIGHTING +1

Simulated candlelight response circuit based on magnetic field induction and control method thereof

The invention relates to the technical field of simulated candlelight, and discloses a simulated candlelight response circuit based on magnetic field induction and a control method thereof.The simulated candlelight response circuit comprises an input power circuit, a charging protection circuit, a storage battery module, a booster circuit, an MCU control circuit, a signal detection circuit and a lamp control circuit, and the output end of the input power circuit is connected with the input end of the charging protection circuit; the output end of the charging protection circuit is connected with one port of the storage battery module, one port of the storage battery module is connected with the input end of the booster circuit, the output end of the booster circuit is connected with the input ends of the MCU control circuit, the signal detection circuit and the lamp control circuit, and the signal control end of the MCU control circuit is connected with the signal control end of the signal detection circuit. The MCU control circuit lamp control end is connected with the lamp control circuit lamp control end; the circuit comprises an antenna, a built-in induction coil is formed, the change of the magnetic field of the surrounding environment can be monitored in real time, once the change of the magnetic field of the surrounding environment is detected, the electronic candle can automatically lighten candle light, and colored light is added on the basis that the candle is lighted.
Owner:XIAMEN HEDEMAN ELECTRONICS TECH CO LTD

Aquarium system with controlable light and methods

An aquarium system includes an aquarium tank arrangement and a light source. The light source has a controllable output of colored light projecting into the aquarium tank arrangement. The light source can provide a cycle of projecting light of at least two different colors.
Owner:SPECTRUM BRANDS INC

Fire rescue intelligent three-color warning light

ActiveCN309883302SEngineeringComputer vision
1. The name of the design product: fire rescue intelligent three-color alarm light. 2. The use of the design product: for fire rescue alarm linkage response, different colored lights represent various alarm applications. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:王其彪

Adjustable load light source for testing LED controller

The utility model belongs to the technical field of electromagnetic compatibility of LED controllers, and particularly relates to an adjustable load light source for testing an LED controller, which comprises a light source plate, a lamp bead is arranged at the top of the light source plate, and the bottom of the lamp bead is connected with the top of the light source plate. The adjustable load light source for testing the LED controller is helpful for improving the efficiency and quality of LED product development, can better meet the requirements of clients for light effects, solves potential design defects in advance, is composed of a plurality of LED chips, and each chip can independently control brightness and color, so that the purpose of voltage regulation is achieved, and the service life of the LED controller is prolonged. The output power of the light source can be flexibly adjusted as required by adopting an efficient power supply design, a current adjusting technology and related control keys so as to adapt to different application scenes and requirements, the adjustable load light source needs to have the capacity of adjusting color temperature, and the change from warm white light to cold white light can be realized by mixing light-emitting diodes (LEDs) with different colors.
Owner:ZHONGREN (SHENYANG) BEIFANG LAB CO LTD

Vehicle lights (square colored lights)

1. Name of the product in this design: Vehicle headlight (square colored light). 2. Purpose of this design: For use in vehicle lighting. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:GUANGZHOU XINLIANG ELECTRONIC TECH CO LTD

Display panel and display device

The embodiment of the invention relates to a display panel and a display device, and the display panel is sequentially provided with a backlight source layer, a color conversion layer, a driving layer, a light control layer and a light filtering layer according to a preset stacking sequence, the filter layer comprises a first preset number of filter units, the light control layer comprises a first preset number of light control units, the driving layer comprises a first preset number of driving units, and the color conversion layer comprises a first preset number of colored light output units; the backlight source layer comprises a second preset number of light emitting units, and each light emitting unit corresponds to a third preset number of colored light output units and emits light to the third preset number of colored light output units; each light control unit in the first preset number of light control units is driven by the corresponding driving unit to block or transmit light emitted to the optical filter. According to the embodiment of the invention, the use number of the light-emitting units is reduced, the mass transfer number of the light-emitting units in the panel production process is reduced, and the yield of the display panel is improved.
Owner:CHONGQING HKC OPTOELECTRONICS TECH CO LTD +1

A method and system for dashboard lighting control based on risk prediction and human-machine trust.

This invention discloses a dashboard lighting control method and system based on risk prediction and human-machine trust. The method includes the following steps: collecting and extracting driver behavior information, including the driver's eye, hand, and foot status information; collecting road traffic environment images to obtain driving environment and traffic event information; using the driver's behavior information as input to a pre-constructed trust assessment model, outputting the driver's trust assessment value for the autonomous driving system at the current moment; assessing the current autonomous driving risk based on the driving environment and traffic event information to obtain the autonomous driving system risk assessment result; calculating the fit between the trust value and the autonomous driving system risk based on the driver's trust assessment value and the autonomous driving risk assessment result at the current moment, determining the threshold range of the fit, and controlling different colored lights accordingly based on different threshold ranges. This invention can optimize the coordination of human-machine co-driving and improve traffic safety.
Owner:WUHAN UNIV OF TECH

An electronic atomizer with colored lights

This utility model relates to the technical field of electronic atomizer bodies, and discloses an electronic atomizer with colored lights, including a housing, an end cap on the top of the housing, an end cap slidably connected to the outer wall of the end cap, a connecting seat fixedly connected to the top of the end cap, an inhaler head slidably connected inside the connecting seat, an LED strip wrapped around the outer wall of the housing, a battery at the bottom of the housing, and an electrical connection between the LED strip and the battery. A disassembly / assembly assembly is provided inside the connecting seat; the disassembly / assembly assembly includes a slide rod and a locking block, with the outer wall of the slide rod slidably connected inside the connecting seat. In this utility model, the LED strip is activated simultaneously with the atomizer, creating an atmospheric user experience and enhancing the product's fun factor. Furthermore, the ingenious linkage between the rotating sleeve, the arc-shaped push plate, and the slide rod greatly improves the efficiency of inhaler head disassembly and assembly, bringing great convenience to users in daily use.
Owner:DONGGUAN KELEIPENG TECH CO LTD

LED filament for emitting white light and colored light

The invention relates to an LED filament (1) and an LED filament lamp (3) comprising the LED filament (1), wherein the LED filament (1) is configured to emit white light or colored light. The LED filament (1) comprises at least ten LEDs (91-9n) arranged on an elongated carrier (2). The LEDs (91-9n) may be LEDs (91-9n) of different colors, wherein the LEDs comprise at least five different main peak wavelengths. The LEDs (91-9n) are positioned alternately with each other along the carrier (2). The LED filament (1) comprises: a plurality of first blue LEDs (91) configured to emit first light having a first main peak wavelength 1; and a plurality of first and second green-yellow light LEDs (92, 93) configured to emit second light having a second main peak wavelength # 2 and a third main peak wavelength # 3, respectively; and a plurality of first red orange light LEDs (94) configured to emit fourth light having a fourth main peak wavelength # 4. The LED filament (1) further comprises one or both of at least one third green-yellow LED (9 #) configured to emit fifth light having a fifth main peak wavelength # 5 and at least one second red-orange LED (9 #) configured to emit sixth light having a sixth main peak wavelength # 6. The difference between each main peak wavelength is at least 20 nm. LEDs (91-9n) comprising different main peak wavelengths may also be added.
Owner:SIGNIFY HOLDING BV

Indication device

To provide a high-definition or high-resolution display device. [Solution] A display device having a first light-emitting device and a second light-emitting device. The light-emitting device comprises a first pixel electrode, a first hole injection layer, a first hole transport layer, and a first The light-emitting layer, the first electron transport layer, the second electron transport layer, and the common electrode are stacked in this order. The second light-emitting device includes a second pixel electrode, a second hole injection layer, and a second hole A transport layer, a second light-emitting layer, a third electron transport layer, a second electron transport layer, and a common electrode, They are stacked in this order. The first light-emitting device and the second light-emitting device are different from each other. It has the function of emitting colored light. The second electron transport layer is at least on the side of the first pixel electrode. The material covers the side surface of the second pixel electrode, the side surface of the first light-emitting layer, and the side surface of the second light-emitting layer.
Owner:SEMICON ENERGY LAB CO LTD

A graphical user interface for controlling the massage pump in a massage bathtub for electronic devices.

1. Name of the product in this design: Graphical User Interface for Controlling Massage Pumps in a Massage Bathtub for Electronic Devices. 2. Intended use of this design: for use in electronic devices. 3. The key design features of this product are the content displayed in the graphical user interface. 4. The image or photo that best illustrates the design points: Interface change state diagram 2. 5. Omit the rear view; omit the top view; omit the bottom view; omit the left view; omit the right view. 6. Purpose of the graphical user interface: To display the control program of the massage pump in the whirlpool system. 7. Human-computer interaction method of graphical user interface: The main view displays the power supply service card, the colored light service card, the massage pump service card, and the temperature setting service card in sequence in the middle; clicking the third massage pump service card in the main view enters the interface change state diagram 1, which displays the massage pump control interface; clicking the massage pump 1 icon in the lower left corner of the interface change state diagram 1 enters the interface change state diagram 2.
Owner:SPARELAX CO LTD

Production device for loose body of optical fiber preform

The invention provides a production device for a loose body of an optical fiber preform, and relates to the technical field of production of optical fiber preforms. A cavity is formed in the vertical cylinder, the clamping assembly is used for fixing the optical fiber preform loose body, and the optical fiber preform loose body rotates along with the clamping assembly under the driving of the driving part. The ion injection part is controlled to vertically reciprocate along the screw rod assembly so as to purge adsorbates on the loose body of the optical fiber preform in the rotating process of the loose body of the optical fiber preform. Light emitted by the light source sequentially passes through the polarizer, the tail handle of the optical fiber preform loose body and the polarized light modulation assembly, and colored light is formed at the tail end of the polarized light modulation assembly so as to perform stress detection. According to the technical scheme, automatic purging and stress inspection of the loose body of the optical fiber preform are synchronously carried out, so that the labor intensity and the operation risk of operators are reduced, the loss of the loose body of the optical fiber preform caused by the quality problem is reduced, and the production quality and efficiency are improved.
Owner:QINGHAI ZHONGLI OPTICAL FIBER TECH CO LTD

LED filament lamp with green LED filaments based on phosphor conversion and mixed direct red-blue LED filaments

The LED filament lamp (1) is configured to provide light emitted from a plurality of LED filaments (2, 3, 12). The LED filament lamp (1) comprises a green LED filament (2) for phosphor conversion and a red-blue LED filament (3) for mixed direct emission. The LED filament lamp (1) comprises at least one first LED filament (2) and at least one second LED filament (3). The first LED filament (2) comprises a plurality of first blue LEDs (91) configured to emit, in operation, first LED light as blue light. When light is emitted from a blue or UV LED (91), light passes through the mixture of light green phosphor coatings, where the converted light is distributed predominantly as green light in a portion of the visible spectrum. The first LED light is converted into first converted light that is only green light. The light emitted from the second LED filament (3) may be blue light or red light, or light mixed with blue light or red light. The red-blue light emitted from the red-blue LED filament (3) stimulates the opposite blue and red receptors of the eye and the converted green light stimulates the green receptors of the eye such that the resulting mixture of the converted green light, blue light and red light gives the appearance of white light. The white light may be controllable. The LED filaments (2, 3, 12) may be controllable such that the LED filaments (2, 3, 12) together emit white light with variable color temperature or colored light.
Owner:SIGNIFY HOLDING BV

LED light source

An LED light source, comprising red light lamp beads (11), green light chips (12), blue light chips (13), purple light chips (14), amber light lamp beads (15), cyan light chips (16), and lemon light lamp beads (17). Each of the red light lamp beads (11) comprises a first light-emitting chip and red fluorescent powder covering the first light-emitting chip, each of the amber light lamp beads (15) comprises a second light-emitting chip and amber fluorescent powder covering the second light-emitting chip, and each of the lemon light lamp beads (17) comprises a third light-emitting chip and lemon fluorescent powder covering the third light-emitting chip. By using exciting fluorescent powder to emit light, the brightness of light is improved, the full width at half maximum is increased, and better color continuity is achieved; by using chips to emit light, the purity of these colored light rays is ensured, meeting the requirements for high-purity colored light output; and through the matching and combination of seven colors of light, wider color gamut coverage and smoother color transition are achieved, enabling generation of a spectral distribution closer to that of sunlight, with a measured spectral similarity index (SSI) exceeding 90.
Owner:APUTURE IMAGING IND CO LTD

Backlight module for luminous keyboard

The invention relates to a backlight module for a light-emitting keyboard, the light-emitting keyboard comprises a first key and a second key, and a key gap area is arranged between the first key and the second key. The backlight module for the luminous keyboard comprises a shading plate, a light guide plate and a lamp plate which are stacked from top to bottom. The lamp panel has a light-emitting unit. The light shielding plate is provided with a light reducing pattern corresponding to the first key so as to shield light. The backlight module is provided with a colored material covering layer, and the colored material covering layer is arranged on the shading plate or the light guide plate and overlapped in the key gap area in the longitudinal direction. Light of the light-emitting unit is guided by the light guide plate to pass through the side of the dimming pattern and emit first colored light upwards from the internal light-transmitting area of the first key. Light of the light-emitting unit is guided by the light guide plate to pass through the colored material coating and emit second colored light different from the first colored light upwards from the inner light-transmitting area and the boundary of the second heat dissipation key. The backlight modules corresponding to some keys on the luminous keyboard are provided with the colored material coatings, so that the luminous keyboard has the special effect of colored light emission.
Owner:HUAIAN DARFON ELECTRONICS +1