19results about How to "High light efficiency" patented technology

The utility model relates to a kind of surface light emitting optical systems, including LED light source component, support and at least one light guide plate, the LED light source component and any light guide plate are installed on the support;Any the end face of the light guide plate is light entrance, and the side surface is respectively light exit and back surface opposite to light exit;Multiple recesses in sheet shape are arranged on the back surface;The light emitted by the LED light source component can enter light guide plate from light entrance, and uniform emission is carried out to light exit after the concave reflection of the recess, then uniform emission is carried out from light exit;Compared with prior art, the utility model uniform emission is carried out to light exit, and avoids part of light loss, improves light efficiency, reduces energy consumption.

The utility model provides a kind of low-power MiniLED backlight control system, it is related to LED backlight technical field, including light bar, the both ends of the light bar are provided with connecting head, multiple electric connecting pins are provided in the inside of two connecting heads, multiple installation clamping grooves are set in the upper end of the light bar, multiple lamp holders are clamped in the inside of multiple installation clamping grooves, multiple electrode pieces are provided in the left and right sides of the lower end of multiple installation clamping grooves, multiple control chips are connected to the lower end of the light bar, multiple control chips are respectively located in the lower end of multiple installation clamping grooves, and electrically connected with the two electrode pieces of the lower end of installation clamping groove, and multiple control chips are electrically connected with multiple electric connecting pins of the front and rear sides, the utility model is provided with multiple-pin connecting head in the both ends of light bar, lamp holder is clamped with light bar by installation clamping groove, electrode piece is electrically connected with control chip, so that lamp holder can be individually repaired and replaced, reduce maintenance cost, and support quick assembly and flexible expansion.

This application discloses an LCOS optical system and an AR device, relating to the field of augmented reality technology. The LCOS optical system includes an illumination module and an imaging module disposed on the light-emitting side of the illumination module. The illumination module includes a light source, a first collimation module, and a light-uniforming element. The imaging module includes a beam splitter, an LCOS device, and a projection lens, with the first collimation module, the light-uniforming element, and the beam splitter arranged sequentially along the light-emitting direction of the light source. The light beam emitted from the light source is collimated by the first collimation module and uniformly irradiated by the light-uniforming element before entering the beam splitter. After passing through the beam splitter, it enters the LCOS device, where the LCOS device modulates the beam into image light carrying image information. This image light is then transmitted to the projection lens through the beam splitter to project an image. This LCOS optical system and AR device can reduce the illumination space, contributing to the miniaturization of the LCOS optical system and AR device.

This invention relates to a highly uniform optical waveguide structure, comprising a waveguide substrate, an imprinted adhesive layer disposed on the waveguide substrate, an integrally formed imprinted grating structure disposed on the imprinted adhesive layer, and a high-refractive-index dielectric layer disposed on the imprinted grating structure. The waveguide substrate is sequentially divided into a coupling-in region, a transition region, and a coupling-out region along the beam propagation path. The grating teeth of the imprinted grating structure located in the transition region and / or the coupling-out region are inserted into the high-refractive-index dielectric layer, and the refractive index of the high-refractive-index dielectric layer exceeds the refractive index of the imprinted grating structure. This invention solves the problem of low diffraction efficiency caused by the excessively low refractive index of the imprinted adhesive in optical waveguide structures fabricated by nanoimprinting, and has the advantages of improving the optical efficiency and uniformity of the optical waveguide structure.

The application discloses a micro light emitting element and a micro display device thereof, comprising a semiconductor layer sequence, a first electrode and a second electrode, the semiconductor layer sequence has a first semiconductor layer, a second semiconductor layer and an active layer between the two, the first electrode is electrically connected with the first semiconductor layer, the second electrode is electrically connected with the second semiconductor layer, an insulating layer is arranged on the sidewall of the semiconductor layer sequence, the semiconductor layer sequence has a light emitting surface, the top of the insulating layer, the top of the semiconductor layer sequence and the light emitting surface are in the same level, and the influence of the edge of the insulating layer on the light emitting performance is reduced in the display unit with an ultra-small size.

The application provides a high beam module and a vehicle lamp. The high beam module comprises a light source for emitting light; a high beam lens arranged on the light emitting side of the light source, the high beam lens being an integral structure, the high beam lens comprising a light inlet surface, a first total reflection surface, a second total reflection surface, a third total reflection surface and a light outlet surface, the second total reflection surface and the third total reflection surface being oppositely arranged along a first direction, the light outlet surface being located on one side of the third total reflection surface along a second direction, the light emitted by the light source being projected to the first total reflection surface through the light inlet surface, the parallel light being formed after being reflected by the first total reflection surface, the parallel light being reflected by the second total reflection surface and the third total reflection surface in sequence, and the parallel light being emitted by the light outlet surface to form a high beam light pattern; the light outlet surface comprises a plurality of sub-light outlet surfaces arranged in sequence along a third direction, and the distance between the root of each sub-light outlet surface and the light source along the second direction gradually increases along the third direction. The application can improve the light efficiency of the high beam module while ensuring the narrow opening size.

This utility model belongs to the field of LED display technology and discloses an outdoor LED grid display screen, including multiple LED light source emitters arranged in a grid array. Each LED light source emitter includes an emitter body and a light source emitting head. One side of the emitter body is a mounting surface and is mounted on a mounting frame. Multiple light source emitting heads are correspondingly embedded on the end face of the emitter body away from the mounting surface. The light emitted by the light source emitting heads is emitted horizontally in a wide-angle manner. Each light source emitter is equipped with a reflector located above the light source emitting head. One end face of the reflector is an inclined mirror surface, with its lower end abutting against the end face of the emitter body away from the mounting surface and its upper end away from this end face, so as to reflect part of the light emitted upwardly by the light source emitting head in a horizontal direction. This grid display screen can reduce the upward tilt of light and reflect it in a horizontal direction, thereby improving the brightness of the light and the clarity of the display screen.

The utility model discloses a high -efficient heat dissipation's nine hole COB integrated plant lamp shell, including protection bottom plate, fixed frame and top cap, the position department of top cap inboard corresponds LED lamp pearl and all is provided with inner cover body, and the outer side of inner cover body all is provided with outer cover body, the airflow channel is formed between outer cover body and inner cover body, and the both ends of airflow channel all are provided with air port, the both ends of fixed frame all are provided with ventilation, and the position department of two ventilation inboard corresponds air port and installs respectively outgoing fan and air inlet fan. The utility model discloses the airflow channel formed between the inner cover body and outer cover body of top cap inboard setting and the air port design of airflow channel both ends, ensure that the air flow is smooth, and further improve the heat dissipation effect. The ventilation of fixed frame both ends setting, cooperate the use of outgoing fan and air inlet fan, form effective forced convection heat dissipation system, make internal heat can discharge rapidly, keep LED lamp pearl in suitable working temperature.

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.

The application belongs to the technical field of RGB mixed light, and provides a light emitting device, a light mixing method, a light mixing device, a terminal device and a storage medium. B = 0.1474 ± 0.100, y B = 0.0330 ± 0.100; a green light source with a peak wavelength of 536nm ± 10nm and a half wave width greater than 100nm, color coordinates on a CIExyY chromaticity diagram are x G = 0.3899 ± 0.100, y G = 0.5381 ± 0.100; and a red light source with a peak wavelength of 630nm ± 10nm and a half wave width greater than 75nm, color coordinates on a CIExyY chromaticity diagram are x R = 0.6358 ± 0.100, y R = 0.3192 ± 0.100. The light emitting device provided by the application has high color rendering index and light efficiency of mixed white light.

A display device according to an exemplary embodiment of the present disclosure includes: a substrate; a plurality of light-emitting elements disposed on the substrate; and a plurality of filters disposed between the plurality of light-emitting elements, wherein each of the plurality of filters includes: an inner filter; an outer filter configured to cover the inner filter and the refractive index of the outer filter being less than that of the inner filter; a filter reflective layer configured to cover the outer filter; and an anti-reflective layer disposed on at least one side surface of the filter reflective layer.

This application provides a low beam headlight module and a vehicle headlight. The low beam headlight module includes: multiple light sources arranged at intervals along a first direction; the low beam lens includes a widening lens unit and an elbow lens unit, which are integrally formed structures. The widening lens unit and the elbow lens unit share a light-incident surface and a light-exit surface. The light-incident surface is arranged opposite to the multiple light sources along a second direction, and the light-exit surface is located on one side of the light-incident surface along a third direction; the widening lens unit is used to form a low beam widening light pattern, and the elbow lens unit is used to form a low beam elbow cutoff line light pattern. The low beam elbow cutoff line light pattern and the low beam widening light pattern are combined to form a low beam light pattern; the light-exit surface includes multiple sub-light-exit surfaces arranged sequentially along the first direction, and the distance between the root of each sub-light-exit surface and the light source in the third direction gradually increases along the first direction. The embodiments of this application can effectively improve the luminous efficacy of the low beam headlight module.

The utility model belongs to the technical field of street lamp, disclose a kind of high light efficiency LED street lamp module, including radiator, lampshade, lamp panel and light-reflecting paper, the side wall of radiator side is processed with radiating fin, lampshade is installed on the side wall of the other side of radiator, accommodating cavity is processed on the side wall of the side of radiator close to lampshade, sealing ring is installed on the side wall of lampshade and closely abuts with radiator, the radiator on the inboard of lampshade is installed with lamp panel, a plurality of 3030 type LED lamp beads are installed on the lamp panel, lens corresponding to each LED lamp bead is installed on the lampshade, lens is integrally formed with lampshade, light-reflecting paper is laid between lamp panel and lens, and the light-reflecting paper is processed with the avoidance mouth corresponding to each LED lamp bead and screw hole position one by one.The utility model is through setting lens and 3030 lamp bead and forms high light efficiency LED street lamp module, cooperate light-reflecting paper simultaneously, can be realized with lower power consumption LED lamp bead the illumination effect that high power consumption LED lamp bead can reach, simultaneously, still will not produce the heat dissipation of re-design street lamp.

The application discloses a small-hole light-emitting spotlight, and belongs to the field of spotlights. The spotlight comprises a shell one and a light concentrator. A shell two is arranged on the top of the shell one. An LED support is arranged on the inner top of the shell two. A hollow groove is arranged on the bottom of the LED support. A lamp bead is arranged on the inner wall of the hollow groove. Two clamping holes are symmetrically arranged on the inner wall of the hollow groove. An inner shell is arranged in the light concentrator. A lens is arranged on the inner wall of the bottom of the inner shell. The light source generated by the lamp bead can penetrate to the outside through the lens, the through hole and the light-emitting hole, so that the light source projection effect can be realized. Further, the small light-emitting hole and the large light flux can be used to realize multiple anti-dazzling, so that the dazzling is prevented, the eye comfort is improved, the light efficiency is improved, the light efficiency can be improved from 60 to 75, and energy saving is realized.

The utility model relates to a kind of light-emitting assembly and backlight module, the light-emitting assembly includes: lamp panel, it is equipped with light source and first connecting structure;Lens, to cover the light source;The lens includes light-entering side surface and light-exit side surface, the light-entering side surface is equipped with second connecting structure and multiple support blocks;All the support blocks are spaced apart distribution, to form heat dissipation channel on the light-entering side surface;Wherein, the support block is equipped with multiple microstructure, the support block is through the microstructure and the lamp panel abuts;The first connecting structure is connected with the second connecting structure, to install the lens on the lamp panel.The utility model's light-emitting assembly, the structure of lens and lamp panel is optimized, can accelerate heat dissipation, can improve the stability of lens and lamp panel both connection, improve the light efficiency of lens.

The utility model discloses a direct linear lens of formula, it includes microstructure, the top of microstructure is connected with the frame through bolt, the top of microstructure is close to the both sides respectively through bolt and is connected with the side plate, two the opposite side of side plate is installed with even distribution's LED lamp respectively, and two the opposite side of side plate is installed with even distribution's first lens respectively, the frame is provided with even distribution's second lens, and the bottom of even distribution's second lens is connected on the top of microstructure, and the front wall and the back wall of even distribution's second lens are installed with lamp pearl respectively. The technical scheme is through the mutual cooperation between first lens, lamp pearl, second lens and frame etc. parts, makes it can little LED lamp just can achieve the linear uniformity of light emitting surface, can accurate control the exit angle of light, ensures that most light is perpendicular or close to the vertical and is shot to liquid crystal panel, reduces the light loss, improves the light efficiency.

The utility model discloses a kind of CSP lamp bead packaging structures of embedded coplanar welding.The packaging structure includes metal substrate and LED chip with first, second electrode.The core is, metal substrate and electrode have mutually adapted three-dimensional geometry configuration, and they form docking structure, so that electrode bottom surface and metal substrate bottom surface jointly form a wide coplanar welding plane.The utility model realizes the self-alignment and pre-welding mechanical locking of chip by three-dimensional docking structure, solves the existing tiny CSP chip mounting difficulty, the problem of low yield;And through the coplanar welding plane formed, fundamentally solve the problem of insufficient welding area, poor reliability, while optimizing heat dissipation performance.