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9results about How to "Improve light efficiency utilization" patented technology
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Light engine, preparation method and near-to-eye display equipment
PendingCN121956339Areduce lossReduce the difficulty of manufacturing processOptical light guidesLight guideDisplay device
The embodiment of the invention provides a light engine and near-to-eye display equipment. The light engine comprises a display device and an optical color combination device, the display device comprises a plurality of single-color image display areas arranged on the same plane, a plurality of display units are arranged in each single-color image display area in an array mode, and the display units arranged in the same single-color image display area have the same emergent light color. The light emitting colors of the display units arranged in different monochromatic image display areas are different, and each monochromatic image display area is used for emitting a monochromatic image light beam; the optical color combination device comprises a plurality of light guides which are in one-to-one correspondence with the monochromatic image display areas; light incidence ports of the light guides face the corresponding monochromatic image display areas and are used for receiving monochromatic image light beams emitted by the corresponding monochromatic image display areas, and the multiple light guides are configured to guide the multiple monochromatic image light beams emitted by the multiple display unit arrays to conduct color combination to obtain color image light beams.
Owner:LUMICORE MICROELECTRONICS SHANGHAI CO LTD
A composite multi-curved surface high-efficiency high beam cup with no light leakage
This utility model relates to the field of lighting optical equipment technology, specifically a composite multi-curved surface high-efficiency high-beam cup with no light crosstalk. It includes a high-beam light-transmitting cover, an outer frame, a positioning block, a multi-curved reflector cup, a lamp bead bracket, a side light shield, a low-beam isolation cover, and an angle adjustment seat. The multi-curved reflector cup's curvature and tangent angle gradient design, combined with the side light shield and low-beam isolation cover, strictly confines the high-beam light to the high-beam area, reducing crosstalk intensity by more than 92%. The lamp bead center coincides with the reflector cup's focal point, and the nano-reflective coating increases the light efficiency to 88%, a 40% improvement over traditional designs. The continuous transition of the multi-curved surface ensures no light scattering loss. The coaxial positioning of the positioning block, outer frame, and reflector cup ensures zero optical path offset. The angle adjustment seat allows for ±5 optical axis adjustment, adapting to different vehicle models. The three-dimensional light-shielding system, with the light-transmitting cover engaging, the light shield tilting, and the isolation cover surrounding, completely blocks stray light.
Owner:DONGGUAN LIANLONG OPTOELECTRONIC TECH CO LTD
A double-shaft multi-dimensional precise adjustment light leakage prevention ceiling lighting device
A dual-axis, multi-dimensional, precise adjustable ceiling lighting device to prevent light leakage is disclosed, relating to the field of lighting technology. The device includes an outer frame, a central ring, a heat sink, and a light shield. The central ring is rotatably installed within the outer frame, with its rotation limited by a positioning post that abuts against the outer frame's positioning post. The heat sink is connected to a fixing post via a central ring with an arc-shaped fixing groove, allowing for left-right swinging in the vertical plane. An inclined or horizontal step at the bottom of the outer frame abuts against the heat sink, switching between inclined illumination and direct light emission. The light leakage prevention structure is achieved through the cooperation of the inner wall and upper surface of the heat sink mounting section with the light shield, and by the inner wall of the central ring blocking light leakage paths. The central ring and outer frame are elastically connected using a pressure tongue, and the outer frame has pre-drilled through holes for easy maintenance. This invention achieves dual-axis adjustment of 360° horizontal rotation and vertical swing, meeting the angle requirements of various scenarios; its purely mechanical structure allows for manual adjustment, making it convenient and efficient; and the collaborative light shielding of multiple components significantly improves light utilization efficiency.
Owner:KOE LIGHTING
A navigational lighting device
ActiveCN224284344UImprove light efficiency utilizationTo achieve the effect of recyclingLighting applicationsElectric circuit arrangementsEngineeringDiffraction optics
This application relates to the field of airport navigation aids technology, and more particularly to a navigation lighting device, including a lamp housing assembly, a composite optical assembly, and a power supply assembly. The lamp housing assembly includes a lampshade and a lamp tube. The lampshade is connected to the top of the lamp tube via a connecting plate. The lampshade has a first chamber, in which the composite optical assembly is disposed. A second chamber is formed inside the lamp tube, and the power supply assembly is disposed inside the second chamber. The composite optical assembly includes a light source, a spherical mirror, a reflector, and a diffractive optical element. The light source is connected to the connecting plate. The spherical mirror is a convex mirror, with its convex end facing the light source. The reflector has a through-type frustum design, with one end facing the spherical mirror and the other end connected to the diffractive optical element. The surface of the diffractive optical element is circular, and the diffractive optical element abuts against the light outlet of the lampshade. This application has the ability to improve the luminous efficiency of LEDs.
Owner:深圳安航科技有限公司
A full-structure waterproof elliptical light-emitting high-luminous-efficiency wall washing lamp
ActiveCN224498337UImprove light efficiency utilizationreduce glareMechanical engineeringMaterials science
Owner:TORSHARE
A fringe projection three-dimensional imaging system based on micro-led array
This invention discloses a stripe projection 3D imaging system based on a Micro-LED array. Its 3D information acquisition module consists of an integrated packaged Micro-LED driver board, a Micro-LED array, a micro-projection module, and a CCD camera. The 3D reconstruction module utilizes a computer. The micro-projection module is equipped with a plano-convex lens and a mechanical focusing damping structure, and is separately arranged in the front and rear optical paths of the Micro-LED array. The system's workflow is as follows: the driver board reads pre-stored stripe pattern data and timing-controls the Micro-LED array to output coded structured light stripes; the focusing structure adjusts the object distance in the optical path, focusing and scaling the stripes before projecting them onto the surface of the object being measured; the CCD camera simultaneously acquires a sequence of deformed images modulated by the object's shape and transmits it to the computer; the computer combines a multi-step phase-shifting algorithm and Gray code rules to complete phase calculation and unfolding, and, combined with a preset phase-height mapping relationship, reconstructs the 3D shape and point cloud data of the object being measured. This invention enables low-cost, miniaturized, and high-performance 3D shape measurement.
Owner:NANCHANG UNIV
Aluminum alloy plate for screen backlight
This utility model discloses an aluminum alloy sheet for use in screen backlight panels, comprising a main body, a heat dissipation layer, and a reflective layer. The main body includes a base layer, a buffer layer, a corrosion-resistant layer, and a wear-resistant layer. By covering the upper surface and outer peripheral sides of the main body with the heat dissipation layer, the heat dissipation performance of the product is effectively enhanced, improving product quality. This allows for rapid heat dissipation from the screen backlight module, ensuring stable screen performance, guaranteeing normal screen operation, and extending screen lifespan. Furthermore, by stacking the reflective layer on the upper surface of the heat dissipation layer, the reflectivity of light is effectively increased, screen brightness is improved, light efficiency is enhanced, and the user's visual experience is enhanced. The buffer layer, corrosion-resistant layer, and wear-resistant layer effectively enhance the product's buffering performance, corrosion resistance, and wear resistance, resulting in richer and more diverse functions to meet current needs.
Owner:DONGGUAN CANYU METAL PROD CO LTD
Low beam modules and vehicles
ActiveCN224284295Uno maintenanceImprove thermal stabilityVehicle headlampsCoatingsRoad userMechanical engineering
This application relates to the field of vehicle technology and discloses a low beam module and a vehicle. The low beam module includes a light source assembly for emitting light; a reflector bowl defining a reflective cavity open at both ends, the reflector bowl being disposed around the periphery of the light source assembly; and a lens disposed on the side of the reflector bowl opposite to the light source assembly, the lens having a cross-section formed as an annular segment. This low beam module and vehicle, through the synergistic effect of the directional reflection of the reflector bowl and the optical diffusion of the lens, can form a clear cutoff line without the need for a light-blocking plate, expanding the light diffusion angle and light coverage range, improving illumination uniformity, enhancing illumination effect, avoiding glare to other road users, and improving visual comfort.
Owner:AVATR CO LTD
Reflecting cover
ActiveCN224190376UImprove light processing effectprevent leakageGlobesPhotographyEngineeringStray light
The utility model provides a reflecting cover which comprises a shell and a cover body structure arranged in the shell. Wherein the cover body structure is a deep drawing structural part formed by an aluminum base material composite reflecting sheet or a laser welding structural part formed by the aluminum base material composite reflecting sheet, so that the reflecting surface of the cover body structure is in a circumferential continuous form. The deep drawing structural part is of an integral hollow structure, splicing gaps in the axial side face can be completely eliminated, light is prevented from leaking from the gaps or stray light is prevented from being generated, it is ensured that the light is directionally reflected through the light reflecting face, and the light efficiency utilization rate is increased. According to the laser welding structural part, the splicing gap of the aluminum base material composite reflector can be controlled to be in the micron order, the effect is close to the seamless effect of the axial side face, the risk of light leakage is remarkably reduced, and the lighting effect treatment effect of the reflector is improved.
Owner:GODOX PHOTO EQUIPMENT CO LTD