Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
36results about How to "Etendue is small" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Wavelength conversion device and light emitting device
ActiveCN105090894AIncrease contact areaHigh light reflectivitySpectral modifiersWavelength conversionLight-emitting diode
The invention provides a wavelength conversion device and a light emitting device. The wavelength conversion device comprises a substrate with a through hole, wherein a light incoming opening and a light outgoing opening are respectively formed in two ends of the through hole. The wavelength conversion device also comprises a wavelength conversion material which is arranged in the through hole and is in close contact with the inner wall of the through hole; the wavelength conversion material is used for receiving exciting light which is incoming into the through hole and emitting excited light; and the inner wall of the through hole has a reflectivity for the exciting light and the excited light. The wavelength conversion device also comprises a first light splitting device which is arranged at one side of the light incoming opening of the through hole and covers the light incoming opening, wherein the first light splitting device is capable of transmitting the exciting light and reflecting the excited light. The wavelength conversion material is arranged in the through hole of the substrate and is in good contact with the inner wall of the substrate, so that the radiating effect is excellent; and meanwhile, the through hole of the substrate forms a light collector, and the collected light can be outgoing only through the light outgoing opening of the through hole, so that a high-brightness light source with a small optical extend is obtained.
Owner:杨毅
Laser light emitting device, light source and projection display system
The invention relates to a laser light emitting device, a light source and a projection display system. The laser light emitting device includes a plurality of lasers used for emitting a plurality of parallel laser beams, a focusing lens used for focusing the plurality of parallel laser beams, and a light scattering component located at the rear end of the light path of the focusing lens; the light scattering component is located at a light path position A, so that the diameter of a circumcircle of a region jointly formed by light spots on the light scattering component which are formed through irradiation of the plurality of laser beams is smaller than 1 / 5 of the diameter of a circumcircle of a region jointly formed by light spots on the section of the plurality of parallel laser beams; and the scattering angle of the light scattering component is not smaller than 2 / 3 of a maximum included angle of adjacent laser beams after focusing. Compared with the prior art, outgoing beams of the laser light emitting device of the invention are collimating with light spots uniformly distributed, and therefore, optical extension quantity is smaller; and the outgoing beams can be overlapped with each other without a long light path required, and therefore, a required space is small.
Owner:杨毅
LED light source system
ActiveCN103968270ASolve the matching problem of clear apertureEtendue is smallPoint-like light sourceElectric lightingEye lensBrightness perception
The invention provides an LED light source system and an LED lighting device. The LED light source system comprises an LED chip array, a collimating lens array, a first fly's-eye lens and a second fly's-eye lens, wherein the first fly's-eye lens comprises orthohexagonal microlens arrays which are closely arranged; the second fly's-eye lens comprises rectangular microlens arrays; each rectangular microlens on the second fly's-eye lens and each orthohexagonal microlens on the first fly's-eye lens are in one-to-one correspondence, the center of the rectangular microlens is coincided with the center of the orthohexagonal microlens, and the length of the short edge of the rectangular microlens is equal to 1.5 times of side length of the orthohexagonal microlens on the first fly's-eye lens; two or more edges of the image of each LED chip, which is formed on each rectangular microlens of the second fly's-eye lens after passing through each collimating lens and each orthohexagonal microlens of the first fly's-eye lens, are coincided with the edges of the corresponding rectangular microlens. According to the invention, the image of each LED chip can be well matched with a rectangular clear aperture of the second fly's-eye lens, so that the optical extending amount of the system is reduced, and the brightness is improved.
Owner:YLX INC
Wavelength conversion apparatus and luminous apparatus
The invention provides a wavelength conversion apparatus. The wavelength conversion apparatus comprises a wavelength conversion layer, a reflecting layer and a light distribution transformation layer, wherein the wavelength conversion layer comprises a first surface and second surface which are opposite to each other; the reflecting layer is located on one side of the first surface of the wavelength conversion layer and reflects stimulated light; the light distribution transformation layer is located on one side of the second surface of the wavelength conversion layer. The light distribution transformation layer comprises a plane and a microstructure surface which are opposite to each other. The plane faces the second surface of the wavelength conversion layer. The microstructure surface comprises a plurality of microstructure units. The shape of the microstructure unit is a pyramid or a cone. The invention also provides a luminous apparatus which comprises the wavelength conversion apparatus and an excitation light source emitting the excitation light. In the wavelength conversion apparatus and the luminous apparatus of the invention, the light distribution transformation layer is used to reflect the small-angle light, and propagation and scattering of the light between the light distribution transformation layer and the reflecting layer are used to realize compression of the angel the light emitted by the wavelength conversion layer so as to reduce an optical extended amount of luminescence.
Owner:APPOTRONICS CORP LTD
Illumination optical system and projector using same
InactiveCN102906639AIncrease brightnessEtendue is smallProjectorsColor photographyOptoelectronicsLaser light
The present disclosures achieve an illumination optical system that has small etendue, a longer service life, and higher brightness, and that is provided with: a laser light source that generates excitation light; a fluorescent body that generates fluorescent light by means of the aforementioned excitation light; a light tunnel that radiates the aforementioned excitation light that enters one end thereof towards the aforementioned fluorescent body from the other end, and that radiates the fluorescent light generated by the aforementioned fluorescent body from the aforementioned one end; and an optical element that is provided in the light path of the aforementioned laser light source and the aforementioned light tunnel, reflects the aforementioned excitation light, and transmits the aforementioned fluorescent light.
Owner:NEC DISPLAY SOLUTIONS LTD
Light source device and projector
InactiveCN103186019ASmall light emitting areaEtendue is smallProjectorsSpectral modifiersWhite lightBrightness perception
The embodiment of the invention discloses a light source device and a projector and relates to the technical field of display. The brightness of an output light source of a projection display product is improved, and the whole size of the projection display product is reduced. The light source device comprises a first light source, a second light source, a fluorescent powder wheel capable of emitting light of at least two colors, and a light combining mirror, wherein the fluorescent powder wheel is coated with fluorescent powder; the fluorescent powder emits the light in corresponding wavelength when being illuminated by exciting light; and the light combining mirror outputs white light after the light emitted by the first light source, the light emitted by the second light source and the light emitted by the fluorescent powder reach the light combining mirror. With the adoption of the light source device, the quality of the light source output by the projection display product can be improved, and the whole size of the projection display product is reduced.
Owner:HISENSE
Laser projection light source module and beam shaping method thereof as well as laser display equipment
InactiveCN102147563ASolve the problem that the effect of dissipating speckles is not idealImprove speckle effectProjectorsLighting device detailsLight beamOptoelectronics
The invention discloses a laser projection light source module and a beam shaping method as well as laser display equipment. The laser projection light source module comprises a first laser module for emitting a first beam, a second laser module for emitting a second beam, a third laser module for emitting a third beam, and an optical coupler for receiving the first beam, the second beam and the third beam, and coupling the first, second and third beams into a first coupling beam, wherein the first laser module, the second laser module and the third laser module are the laser modules with different colours. By the invention, the speckle dissipating effect of the laser projection light source module can be improved.
Owner:HISENSE VISUAL TECH CO LTD
Illuminating optical system and projector using same
InactiveCN102741743AIncrease brightness levelEtendue is smallProjectorsColor television detailsFluorescenceLaser light
Owner:NEC DISPLAY SOLUTIONS LTD
Projector
The invention discloses a projector in a lighting optical system. The projector comprises a laser source, a synchronizing signal processor, a laser driver, an LED light source, a rotation state detector and a phosphor wheel driver. The synchronous signal processor converts synchronizing signals synchronized with video signals input from the outside into video signals used in the projector. The laser driver controls the lighting state of the laser source according to the synchronizing signals output by the synchronizing signal processor. The LED driver controls the lighting state of the LED light source according to the synchronizing signals output by the synchronizing signal processor. The rotation state detector detects the rotation state of a phosphor wheel. The phosphor wheel driver controls the rotation state of the phosphor wheel according to the detection result of the rotation state detector, so that the color of one indication video signal in the synchronizing signals output by the synchronizing signal processor is matched with the color which is output by the lighting optical system and indicates the rotation state of the phosphor wheel, which is detected by the rotation state detector.
Owner:NEC DISPLAY SOLUTIONS LTD
Etendue reduced stereo projection using segmented disk
InactiveCN102474630AShort transition timeEtendue is smallTelevision system detailsColor television detailsProjection opticsSpatial light modulator
A stereoscopic digital image projecting system has a light source system energizable to provide polarized illumination having a first polarization state and a beam splitting system alternately generating first and second light beams having different polarization states from the polarized illumination. A combining system has a polarization beam combiner that combines the first and second light beams into a combined light beam. A spatial light modulator is used to modulate the combined light beam in a manner consistent with stereoscopic image data to form a first modulated image from illumination in the combined light beam having the first polarization state and to form a second modulated image from illumination in the combined light beam having the second polarization state. Projection optics are configured to project the first and second modulated images onto a display surface.
Owner:IMAX THEATERS INT
Light-emitting device
ActiveCN111399241AIncrease brightnessEtendue is smallMechanical apparatusLight guides detailsLight spotFirst light
The invention provides a light-emitting device which is characterized by comprising a first laser light source, a polarization beam splitter, a first wave plate, a first light condensation element, ascattering device, a second light condensation element, a first wavelength conversion device, a dichroscope, a third color light generation part and a light condensation part. The light-emitting device provided by the invention has the advantages of high brightness, small optical expansion amount, high color rendering index, uniform light spots, long service life, high efficiency and the like. Thelight-emitting device can be applied to systems requiring high illumination intensity and small optical expansion, such as entertainment lighting systems, projection systems, automobile lighting systems, medical lighting systems, searchlighting lighting systems, field operation lighting systems, navigation lighting systems, portable lighting systems and the like.
Owner:赫尔曼友瀚范贝赫库姆 +1
Light-emitting device and projection system
ActiveCN102890397AEtendue is smallLarge etendueProjectorsSpectral modifiersProjection systemLight source
The embodiment of the invention discloses a light-emitting device and a projection system. The light-emitting device comprises a light-emitting light source, a wavelength conversion layer and a light combining component, wherein the light-emitting light source comprises a light-emitting surface with a first area and a second area and is used for emitting first light; the wavelength conversion layer comprises a wavelength conversion material and is used for absorbing the first light emitted by the first area of the light-emitting light source to emit excited light; and the light combining component is used for receiving the first light emitted by the second area of the light-emitting light source and the excited light emitted by the wavelength conversion layer and combining the received first light and excited light into combined light in a mode that one light beam covers the other light beam. The brightness of the light-emitting device can be improved.
Owner:APPOTRONICS CORP LTD
Solid-state light source light-emitting device
PendingCN111578164AIncrease brightnessEtendue is smallElectric lightingSpectral modifiersColor rendering indexLight spot
The invention provides a solid-state light source light-emitting device which is characterized by comprising a first laser light source, a polarization beam splitter, a wave plate, a first light condensation element, a first wavelength conversion device, a dichroscope, a third-color light generation part and a light condensation part. The solid-state light source light-emitting device has the advantages of being high in brightness, small in optical expansion amount, high in color rendering index, uniform in light spot, long in service life, high in efficiency and the like. The solid-state light source light-emitting device can be applied to systems requiring high illumination intensity and small optical expansion, such as entertainment lighting systems, projection systems, automobile lighting systems, medical lighting systems, searchlighting lighting systems, field operation lighting systems, navigation lighting systems, portable lighting systems and the like.
Owner:赫尔曼友瀚范贝赫库姆 +1
Phosphor-coated light-emitting device
ActiveCN103026126ASatisfied coolingEtendue is smallElectrical apparatusElectroluminescent light sourcesFluorescencePhosphor
The present invention provides a phosphor-coated light-emitting device which has a simple structure and enables the cooling of a phosphor satisfactorily. The phosphor-coated light-emitting device comprises a phosphor that can generate fluorescence upon the irradiation with excited light and a phosphor carrier that supports the phosphor thereon, wherein the phosphor carrier has a flat plate-like shape, and wherein vertical bodies, each of which has the same perpendicular line as the perpendicular line of the upper surface of the phosphor carrier, are formed in a region in which the phosphor is to be formed in the phosphor carrier.
Owner:NEC CORP
Display system
ActiveCN107765495AImprove recycling efficiencyAchieve recyclingProjectorsOptical elementsLight guideOptoelectronics
The invention provides a display system, and the system comprises a light source which is used for emitting first light; a light uniformizing device which comprises a light incident plane and is usedfor receiving the first light and uniformizing the first light; a light modulator which is used for receiving at least a part of light emitted by the light uniformizing device, carrying out the modulation of at least a part of the light entering the light modulator according to an image signal, and emitting modulated light and non-modulated light; and a light guide device which is used for guidingat least a part of non-modulated light emitted by the light modulator to the light incident plane of the light uniformizing device and enabling the light to pass through the light uniformizing deviceto enter the light modulator.
Owner:APPOTRONICS CORP LTD
Optical fiber conduction green light source and all-fiber laser backlight source device
InactiveCN110989278AHigh strengthImprove conversion efficiencyProjectorsCoupling light guidesLuminous intensityRed laser
The invention discloses an optical fiber conduction green light source and an all-fiber laser backlight source device. The green light source device comprises a blue laser I, an optical fiber I, a fluorescence converter and an optical fiber II which are connected in sequence, the all-fiber laser backlight source device comprises the above optical fiber conduction green light source device, a second blue light laser, a red light laser, a third optical fiber, a fourth optical fiber, a fifth optical fiber, an optical fiber beam combiner and a focusing collimating mirror. The second blue laser isconnected with the third optical fiber, the red laser is connected with the fourth optical fiber, and the second optical fiber, the third optical fiber and the fourth optical fiber of the green lightsource device are jointly combined and inserted into the optical fiber beam combiner. The other end of the optical fiber beam combiner outputs the fifth optical fiber, and the tail end of the fifth optical fiber is provided with the focusing collimating mirror. According to the green light source device, the green light luminous intensity and the conversion efficiency are improved, and the laser backlight source device is low in production cost, good in device thermal management and high in projection quality.
Owner:XUZHOU NORMAL UNIVERSITY
Light source equipment
PendingCN112283609AIncrease brightnessEtendue is smallMechanical apparatusProjectorsWave bandLighting system
The invention provides light source equipment. The equipment is characterized by comprising a light source, a reflection element, a polarization beam splitter and a wavelength conversion device, a transmission area of the reflection element allows light of a first wave band emitted by the light source to pass through or enter the polarization beam splitter after passing through, and a reflection area of the reflection element can reflect the light of the first wave band from the polarization beam splitter, so the light is emitted back to polarizing beam splitter, the light can be reused, and the light emitting efficiency of the light source equipment is improved. The light source equipment provided by the invention has the characteristics of high brightness, small optical expansion amount,high color rendering index, long service life and the like, and can be applied to systems requiring high illumination intensity and small optical expansion amount, such as an entertainment illumination system, a projection system, an automobile illumination system, a medical illumination system, a searchlighting illumination system, a field operation illumination system, a navigation illuminationsystem, a portable illumination system and the like.
Owner:赫尔曼友瀚范贝赫库姆 +1
A light source system made of reflecting mirror
InactiveCN1731271AEtendue is smallSuit one's needsProjectorsReflectorsSpatial light modulatorSpace optics
The invention relates to an illumination system with cold reflecting bowl in the field of projecting display optics technology. It is formed by 1 hemi-spherical reflecting mirror, 2 hemi-ellipsoid reflecting mirror 3 squard rod 6 and hemi-hyperbolical mirror 8. It guarantees the illumination even of the space optic modulator above 90% and adopts the space optic modulator of 0.5íó0.55íó0.7íó0.78íó0.9íó1.3 inch F / #ú¢2 to achieve 14íÒshed angle distal illumination. It uses Light Tools software illumination module modeling and simulation to compute 200,000 lights and obtains the design result on the space optic modulator.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Light source device
ActiveCN112283610AImprove luminous efficiencyIncrease brightnessMechanical apparatusProjectorsColor rendering indexEngineering
The invention provides a light source device, which is characterized by comprising a light source, a reflection element, a polarization beam splitter, a wavelength conversion device and a scattering optical system. A transmission region of the reflection element allows light of a first wave band emitted by the light source to pass through or be transmitted through and then enter the polarization beam splitter, and a reflection region can reflect the light of the first wave band from the polarization beam splitter, so that the light is emitted back to the polarization beam splitter, the light can be reused, and the light emitting efficiency of the light source device is improved. The light source device has the advantages of being high in brightness, small in optical expansion amount, highin color rendering index, long in service life and the like, and can be suitable for systems needing high illumination intensity and small optical expansion amount, such as an entertainment illumination system, a projection system, an automobile illumination system, a medical illumination system, a searchlighting illumination system, a field operation illumination system, a navigation illuminationsystem, and a portable illumination system.
Owner:赫尔曼友瀚范贝赫库姆 +1
Light source device and projector
InactiveCN103186019BSmall light emitting areaEtendue is smallProjectorsSpectral modifiersLength waveProjection display
Owner:HISENSE
High-brightness green light source device based on rod-shaped light conversion material
ActiveCN112130411AImprove green light output efficiencyImprove luminous efficiencyProjectorsSpectral modifiersFluorescenceErbium lasers
The invention discloses a high-brightness green light source device based on a rod-shaped light conversion material. The high-brightness green light source device comprises a laser, a reflecting mirror, a fluorescence conversion rod and a heat dissipation substrate; the laser is obliquely arranged above the right end surface of the fluorescence conversion rod, and the included angle between the light emitting direction of the laser and the horizontal plane is 30-40 degrees; the reflecting mirror is arranged on one side of the right end face of the fluorescence conversion rod, the distance between the reflector and the right end of the fluorescence conversion rod ranges from 1.0 mm to 5.0 mm, the fluorescence conversion rod is cylindrical, the left end face of the fluorescence conversion rod is a polishing inclined face, and the direction of the polishing inclined face is perpendicular to the light emitting direction of the laser. The laser and the fluorescence conversion rod are arranged in the heat dissipation substrate and are tightly attached to the heat dissipation substrate, the left end face of the heat dissipation substrate is an inclined face, and the inclination angle is the same as that of the left end face of the fluorescence conversion rod. The light conversion material with the polished inclined surface is adopted, the total reflection effect and the light-emittingsymmetry of a traditional vertically polished light material are broken through, and the green light output efficiency of the light conversion material and the light-emitting efficiency of a light source are greatly improved.
Owner:XUZHOU NORMAL UNIVERSITY
Light-emitting equipment
PendingCN112815273AImprove light mixing effectColor temperature can be adjusted freelySpectral modifiersColor rendering indexLight flux
The invention provides light-emitting equipment. The light-emitting equipment comprises a first light source, a second light source, a dichroscope, a wavelength conversion device, a first light path adjusting device or a second light path adjusting device and a first scattering optical system. According to the light-emitting equipment, the light mixing effect of the emergent light can be improved by the aid of the first scattering optical system. The color temperature of the emergent light of the light-emitting equipment can be freely adjusted by independently adjusting the power of the first light source and the second light source. A laser capable of emitting light of different dominant wavelengths can be used in the first light source to improve the color rendering index of emergent light of the light-emitting equipment. The light emitted by the second light source is completely used for exciting the wavelength conversion device, compared with the prior art, the light-emitting equipment can achieve output with higher luminous flux under the condition that the optical expansion amount is not increased, and if a polarization selection element is used in the second light source in a matched mode, the output luminous flux of the light-emitting equipment can be further improved.
Owner:万民
Light mixing, color mixing and light condensing light ray extraction apparatus for lighting
PendingCN110873295AUniform distribution of light intensityConsistent colorMechanical apparatusElectric lightingLight emitting deviceColor mixing
The invention discloses a light mixing, color mixing and light condensing light ray extraction apparatus for lighting. The light mixing, color mixing and light condensing light ray extraction apparatus comprises a light ray extractor arranged in a light emitting device, wherein luminous crystals are arranged in the light emitting device; the light ray extractor is connected to one end of the luminous crystals and used for extracting light rays emitted by the luminous crystals, mixing the light rays, mixing colors, condensing the light rays and then emitting the light rays out; the light ray extractor comprises a first condenser and a second condenser; two ends of the first condenser are correspondingly a first light ray input end connected to the luminous crystals, and a first light ray output end connected to the second condenser; the end, facing the first light ray output end, of the second condenser is a second light ray input end, while the other end of the second condenser is a second light ray output end; the first condenser and the second condenser have no optical contact; and the plurality of luminous crystals are arranged in parallel or in series on the side, far away fromthe first condenser, of the first light ray input end.
Owner:YANGLITE SHANGHAI TECH CO LTD
Lighting device and related projection system
ActiveCN102890397BEtendue is smallLarge etendueProjectorsSpectral modifiersLight beamProjection system
Owner:APPOTRONICS CORP LTD
Mixed light source projection light engine system
The invention discloses a mixed light source projection light engine system, which comprises a light source emitting module, a light ray control module, an image information module and a projection display module, wherein the light source emitting module at least comprises a laser used for emitting laser beams and a luminous ceramic arranged on the transmission optical path of the laser beam; the laser beam and the luminous ceramic have different colors; the light source emitting module provides a mixed light source through the laser and the luminous ceramic; the light source is transmitted to the light ray control module; the light ray control module processes the mixed light source transmitted by the light source emitting module; the mixed light source is transmitted to the image information module; light rays reflected back by the image information module are transmitted to the projection display module for projection display. Through the mutual effects of the four modules, the laser is used for being combined with the luminous ceramic to be used as a light source, so that the laser scattered spots can be sufficiently eliminated; the high optical flux can be obtained; the heat stability is high; the optical engine brightness is improved; the optical expansion quantity is reduced; the service life is prolonged; the system light energy utilization rate is improved.
Owner:SHENZHEN EVIEWTEK TECH CO LTD
A light source system made of reflecting mirror
InactiveCN100445865CReduce areaEtendue is smallProjectorsReflectorsSpatial light modulatorSpace optics
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
a display system
ActiveCN107765495BImprove recycling efficiencyAchieve recyclingProjectorsOptical elementsLight guideOptoelectronics
Owner:APPOTRONICS CORP LTD
Wavelength conversion apparatus and luminous apparatus
ActiveCN102723421BEtendue is smallAchieve compressionSemiconductor devicesWavelength conversionLight emitting device
Owner:APPOTRONICS CORP LTD
Laser light emitting device, light source and projection display system
The invention relates to a laser light emitting device, a light source and a projection display system. The laser light emitting device includes a plurality of lasers used for emitting a plurality of parallel laser beams, a focusing lens used for focusing the plurality of parallel laser beams, and a light scattering component located at the rear end of the light path of the focusing lens; the light scattering component is located at a light path position A, so that the diameter of a circumcircle of a region jointly formed by light spots on the light scattering component which are formed through irradiation of the plurality of laser beams is smaller than 1 / 5 of the diameter of a circumcircle of a region jointly formed by light spots on the section of the plurality of parallel laser beams; and the scattering angle of the light scattering component is not smaller than 2 / 3 of a maximum included angle of adjacent laser beams after focusing. Compared with the prior art, outgoing beams of the laser light emitting device of the invention are collimating with light spots uniformly distributed, and therefore, optical extension quantity is smaller; and the outgoing beams can be overlapped with each other without a long light path required, and therefore, a required space is small.
Owner:杨毅
Light emitting device and light source imaging system
InactiveCN108799851AIncrease brightnessEtendue is smallLight source combinationsLight fasteningsLight beamLight emitting device
The invention discloses a light emitting device and a light source imaging system. The light emitting device comprises light sources; the light sources comprise light emitting element arrays and composite paraboloid light collectors with light inlets; the light emitting element arrays are arranged at the light inlets of the composite paraboloid light collectors, and thus the composite paraboloid light collectors collect light beams from the light emitting element arrays; and the sum of the light emitting area of all light emitting elements in the light emitting element arrays is greater than or equal to 50% of the area of the light inlets of the composite paraboloid light collectors. According to the light emitting device and the light source imaging system, the light beams with the high brightness can be emerged, and the light out efficiency is improved.
Owner:DONGGUAN INST OF OPTO ELECTRONICS PEKING UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com