1098results about "Light guides for lighting systems" patented technology

A backlight module for a lighting keyboard having a specific function key comprises a lighting board, a light guide panel and a shielding sheet. The shielding sheet, the light guide panel and the lighting board are stacked from top to bottom. The lighting board has first and second light emitting units. The light guide panel has first and second light guide holes. The first light emitting unit is in the first light guide hole. The second light emitting unit is in the second light guide hole. The shielding sheet has a blocking portion. The blocking portion overlaps in projection with the first light emitting unit and the second light emitting unit. The light guide panel has a light guide panel slot. The light guide panel slot overlaps in projection with the blocking portion and a boundary of a keycap projection area of the specific function key.

The utility model relates to a light-transmitting guide pipe structure of a light-transmitting concrete outer wall, which is used for being matched with construction of a non-contact double-layer outer wall and forming a light guide channel penetrating through the double-layer outer wall at the same time after the construction is completed. The light-transmitting guide pipe structure comprises a first sleeve, a second sleeve and a transparent light guide rod; one end of the first sleeve is connected to one end of the second sleeve in a sleeved mode, and a pipe cavity with the inner diameter decreasing from the first sleeve to the second sleeve is formed in the pipe. The length and the shape of the transparent light guide rod correspond to those of the tube cavity; the first sleeve and the second sleeve are sequentially matched with the double-layer wall body for construction and connection, while sequential construction of the double-layer wall body is not affected, a lateral light shielding channel is formed after the double-layer wall body is used, and then a light guide channel penetrating through the double-layer wall body at the same time is formed after the transparent light guide bar is inserted into the double-layer wall body; the limitation that a conventional light-transmitting rod can only be applied to a single-layer concrete wall is eliminated, and the application scene of the light-transmitting concrete wall is expanded.

A light-transmitting substrate is deployed with a first of two major surfaces in facing relation to an eye of a viewer and guides light by internal reflection between the two major surfaces. An optical coupling-out configuration couples image light, that corresponds to a collimated image and that is guided by internal reflection between the two major surfaces, out of the light-transmitting substrate. A first optical coupling configuration collimates light from the eye to produce collimated light, and couples the collimated light into the light-transmitting substrate for guiding by internal reflection. A second optical coupling configuration couples the collimated light out of the light-transmitting substrate toward an optical sensor that senses the coupled-out light. A processing system derives current gaze direction of the eye by processing signals from the optical sensor.

The utility model relates to a light guide installation structure, an automobile lamp and a vehicle, the light guide installation structure comprises a light guide, a lamp body and an LED support, the LED support is installed on the lamp body, the lamp body is provided with a pair of clamping groove structures which are oppositely arranged in the Y-axis direction, and the light guide is embedded and fixed on the lamp body through the clamping groove structures; a pair of grooves are formed in the LED support in the X-axis direction, and the two ends of the light guide in the X-axis direction are connected into the grooves respectively. Through the clamping groove structure, the groove and the turnups on the two sides of the light guide, the light guide is fixedly installed on the lamp body, the light guide is limited and stabilized in the X direction and the Y direction, therefore, the installation steps are simplified, the cost is saved, and the installation strength of the light guide is guaranteed.

A light guide includes: a light entrance section which has a light entrance surface to which light is input, reflective surfaces and a light transmitting section, the reflective surfaces reflecting a part of the light input, and the light transmitting section transmitting another part of the light input and reflected light reflected by the reflective surfaces; a light guiding section which has a light exit surface, and guides the reflected light so that it is output from the light exit surface; and a continuous section and a non-continuous section. A large part of the light collected by the light entrance section can be output from the light exit surface, by a part of the light input being reflected by the reflective surfaces and the reflected light entering the light guiding section from the light transmitting section via the continuous section to be guided within the light guiding section.

A detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes, a light source configured to emit light to a first side surface of the light guide plate, and a plurality of scattering portions provided on the light guide plate and configured to scatter light from the light source; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorbance of the light than the light guide paths. The scattering portions are provided in an area overlapping the light-blocking portion of the optical filter layer on a surface of the light guide plate facing the optical filter layer.

A light guide plate including a plate body and a plurality of optical microstructures is provided. The plate body has a first surface. The plurality of optical microstructures are formed on the first surface of the plate body. Each of the plurality of optical microstructures has an optical curved surface and a plurality of optical reference surfaces configured to divide the optical curved surface. The plurality of optical reference surfaces are perpendicular to the first surface. Intersections of the optical curved surface and the plurality of optical reference surfaces respectively form a plurality of optical profile lines. An optical angle is formed between the first surface and each of the plurality of optical profile lines, and angles of at least part of the optical angles are different from each other. A light source module and a display apparatus adopting the light guide plate are also provided.

An anti-peep light source module and an anti-peep display device having an anti-peep function and good image quality are provided. The anti-peep light source module includes a light guide plate, a first light emitting element, a second light emitting element, a plurality of optical microstructures and a first surface. The light guide plate has a first light incident surface and a second light incident surface. Each of the optical microstructures has a first optical surface facing the first light incident surface and a second optical surface facing the second light incident surface. A magnitude of a first included angle between the first optical surface and the first surface and a magnitude of a second included angle between the second optical surface and the first surface gradually change as getting farther away from the first surface.

The invention provides an illumination system and projection equipment. The lighting system comprises a light source module, a wavelength conversion device, a first light guide assembly, a second light guide assembly and a micro-lens array module. The light source module is used for providing a plurality of green and blue laser beams. The wavelength conversion device is used for generating fluorescent light beams. The first light guiding assembly and the second light guiding assembly are used for guiding a fluorescent light beam and a green laser light beam respectively. The fluorescent light beams form fluorescent light spots on the first area of the first side face of the micro-lens array module. The plurality of green laser beams form a plurality of green light spots on a second area of the first side surface of the micro-lens array module. The first region is adjacent to the second region. The illumination system and the projection equipment provided by the invention avoid energy loss and have good light uniformity.

An optical detector for detecting a coolant leak from a liquid cooling system within an information handling system includes a light source and a sensor configured to absorb light emitted from objects illuminated by the light source. A first flexible waveguide is communicatively coupled to the light source, and a second flexible waveguide is communicatively coupled to the sensor. The optical detector is configured to detect a potential coolant leak in response to the sensor absorbing light having a predetermined characteristic. The light is reflected from an object illuminated by the first flexible waveguide. The reflected light is transmitted to the sensor via the second flexible waveguide.

The utility model discloses an optical module, a vehicle lamp and a vehicle. The optical module comprises a first light guide component and a second light guide component. The first light guide component is provided with a light incident surface and a light emergent surface, and is configured to adjust light rays incident from the light incident surface into parallel light rays and emit the parallel light rays to the light emergent surface; the second light guide part is arranged on the light emitting side of the first light guide part through the mounting part; the light-emitting surface comprises a light-emitting main surface and a diffusion sub-surface, and the diffusion sub-surface is arranged on at least part of the peripheral side of the light-emitting main surface; a reference plane lambda perpendicular to the parallel light rays is used as a projection plane, and the diffusion sub-plane is configured to diffuse the parallel light rays incident to the diffusion sub-plane, so that the area of an irradiation area, on the reference plane lambda, of the light rays emitted from the light emitting surface is larger than the orthographic projection area, on the reference plane lambda, of the light emitting surface. The light-emitting area of the second light guide part is increased through the diffusion effect of the diffusion sub-surface; and the overall lighting uniformity of the second light guide part is improved.

The invention relates to the field of lamps, and discloses a light guide part, a lamp and a carrier, the light guide part comprises at least two light guide sections which are arranged in sequence, and every two adjacent light guide sections are connected through a connecting section; wherein each light guide section is provided with a light inlet part and a light outlet part, the light inlet parts are used for allowing light of the light-emitting assembly to enter the light guide sections, the light outlet parts are used for allowing the light of the light guide sections to be emitted, and the connecting sections are configured to limit at least part of the light to be transmitted between the two adjacent light guide sections. The light guide part is designed to be of the structure that the at least two light guide sections and the connecting sections are alternately connected, independent segmented control over all the light guide sections can be achieved, for example, the on-off states of different light guide sections are independently adjusted, or differentiated color output of all the light guide sections is achieved, the problem that a traditional light guide part is single in light emitting effect is effectively solved, and the light guide part is more convenient to use. And diversified and differentiated light emitting requirements are fully met. The connecting sections can effectively limit light transmission between the adjacent light guide sections, and the light crosstalk phenomenon is avoided.

To provide a luminaire capable of more efficiently illuminating an object range with uniform brightness.SOLUTION: A lighting fixture 10 includes a light source module 30 having a substrate 32 and a plurality of light sources 31 mounted on the substrate 32, and a light distribution control member 20 for controlling light distribution of illumination light emitted from the plurality of light sources 31. The light distribution control member 20 includes a light emission surface 22, and a plurality of incidence portions 21 provided to face each of the plurality of light sources 31 on a side opposite to the light emission surface 22. At least one of the plurality of incidence portions 21 includes a bottom portion 211 facing one light source 31 of the plurality of light sources 31, and a side wall 212 protruding from an edge of the bottom portion 211 toward the light source module 30. The side wall 212 has an incident surface 2121 on which the illumination light is incident, and a total reflection surface 2122 that totally internally reflects the light incident from the incident surface 2121. The total reflection surface 2122 is a curved surface that is convex toward the light exit surface 22.SELECTED DRAWING: Figure 3

The invention discloses a preparation method of a low-blue-light LED panel lamp, and belongs to the technical field of LED illumination. According to the method, through blue light chip screening, composite fluorescent powder system optimization, multi-layer optical structure design and heat dissipation coordinated regulation and control, the radiation power proportion of the blue light wave band (430-460 nm) is smaller than or equal to 5%, meanwhile, it is guaranteed that the color rendering index Ra is larger than or equal to 85, and the lighting effect is larger than or equal to 100 lm / W. The core innovation of the LED lamp is that the double-effect eye protection layer of quantum dot doped silica gel and cerium yttrium aluminum garnet composite fluorescent powder is adopted, and the optical matching design of the micro-nano texture light guide plate and the gradual change type diffusion film is combined, so that the technical problems that an existing low-blue-light LED lamp is low in lighting effect, poor in color rendering property, uneven in blue light filtering and the like are solved. The blue light hazard level of the prepared LED panel lamp reaches RG0 level, and the LED panel lamp is suitable for long-time close-range illumination scenes such as classrooms, offices and bedrooms and has wide application prospects.

Lighting device (1) comprising at least one semiconductor light source (4), wherein - the semiconductor light source (4) is laterally surrounded by a light-transmitting ring-shaped TIR body (8; 18, 19; 28, 29), - the TIR body (8; 18, 19; 28, 29) has an outer surface (10) facing away from at least one semiconductor light source (4) with a TIR structure (11) and - the TIR structure (11) is designed to reflect light (L) incident on its interior through a light exit aperture (13) of the TIR body (8; 18, 19; 28, 29), and - the TIR body has a hollow cylindrical basic shape, with the TIR structure being formed on its outer surface.

The invention provides an induction heating cooker which improves visibility of light displayed on a top plate. This induction heating cooker is provided with: a top plate; and a light-emitting device disposed below the top plate, the light-emitting device including: a substrate; a light-emitting element mounted on the substrate; and a light guide plate having a longitudinal direction in a direction along the top plate and guiding light emitted from the light emitting element, the light guide plate having a first end in the longitudinal direction and a second end on the opposite side from the first end, the size of the light guide plate in the height direction becomes smaller from the first end toward the second end, and the light guide plate guides the light incident into the light guide plate from the first end to the top plate.

The utility model discloses a large-spacing double-light system, which comprises a light inlet unit, a reflection unit, a light outlet unit and a double-focus rotary condenser, the double-focus rotary condenser comprises a condensation part and a focus part, wherein the condensation part is used for condensing a light source; the bifocus rotary condenser is in condensation butt joint with the light source part, the condensed light source is emitted to the focus part through the condensation part, the condensed light source forms a condensation refraction light path through the focus part, the condensation refraction light path is emitted to the reflection unit to form a reflection light path, and the reflection light path leads out light of the reflection light path through the light outlet unit. The LED lamp has the advantages that the mounting number of LEDs is reduced, the double-light-source butt joint structure is optimized, the illumination effect is improved, the LED lamp is adaptive to multiple sets of PCBs, and the assembly load, the production cost and the operation difficulty are reduced.

A backlight module includes the following features. A light guide plate is opposite a light-emitting element. An inverse prism sheet is disposed on a light-emitting surface of the light guide plate and has prism columns facing the light-emitting surface. The prism columns extend in a direction. A first prism sheet and a second prism sheet are sequentially disposed on a side of the inverse prism sheet facing away from the light guide plate, and each have first prism columns and second prism columns. An included angle between the direction and the first prism column is between 85 and 95 degrees, and an included angle between the first prism column and the second prism column is between 85 and 95 degrees. Two bottom angles of each of the second the prism columns are between 51 and 61 degrees. A display device having a backlight module is also provided.

A cabin illumination device is provided on a wall surface of a cabin of a vehicle and illuminates the cabin and includes: a light source disposed to emit light away from the wall surface; and a reflective member disposed to intersect a light axis of light emitted by the light source. The reflective member includes a first protruded surface disposed to intersect the light axis of the light source, and a portion of the reflective member is sloped downward in a direction away from an intersection of the light axis and the first protruded surface.

A light guide assembly and an electronic device having the light guide assembly. The light guide assembly includes a housing (10) and a light guide element (20). Each of the first light guide columns (21) is capable of receiving light from the LED on one of the board surfaces of the printed circuit board and guiding the light to a first indicator terminal (211) running through the first observation hole. Each of the second light guide columns (22) is capable of receiving light from the LED on the other of the board surfaces of the printed circuit board to a second indicator terminal (221) running through the second observation hole. The light guide assembly has a simple structure and is easy for assembly on a printed circuit board.

In some embodiments, a near-eye, near-eye display system comprises a stack of waveguides having pillars in a central, active portion of the waveguides. The active portion may include light outcoupling optical elements configured to outcouple image light from the waveguides towards the eye of a viewer. The pillars extend between and separate neighboring ones of the waveguides. The light outcoupling optical elements may include diffractive optical elements that are formed simultaneously with the pillars, for example, by imprinting or casting. The pillars are disposed on one or more major surfaces of each of the waveguides. The pillars may define a distance between two adjacent waveguides of the stack of waveguides. The pillars may be bonded to adjacent waveguides may be using one or more of the systems, methods, or devices herein. The bonding provides a high level of thermal stability to the waveguide stack, to resist deformation as temperatures change.

A decorative element (100) for the interior of a vehicle, as well as a system (200) and a method (300) for it, are disclosed. The decorative element comprises a plate (110) provided with a decorative graphic (112) having a predefined profile. The predefined profile is formed based on a design intended to be illuminated in the interior of the vehicle. The plate is also provided with one or more slots (114) facing away from the vehicle interior. The decorative element further comprises at least one flexible light guide (120) integrated into the one or more slots. The at least one flexible light guide is configured to channel light through the decorative graphic. The decorative element of the present invention enables the illumination of a complex decorative graphic.

This utility model relates to the technical field of automotive lighting, specifically to an ambient light. The ambient light includes a headlight base, a light guide bracket mounted on the headlight base, and multiple light guides mounted on the light guide bracket. A PCB board is fixedly connected to the headlight base and the light guide bracket on the same side. A light source controller and multiple LED light sources are mounted on the PCB board. The light source controller is connected to both the body controller and the multiple LED light sources. Each LED light source is connected one-to-one with a light guide. This design features a simple structure, convenient assembly, low production cost, and customizable light-emitting area according to actual needs.

The utility model discloses a light splitting structure of a marker lamp, which is characterized in that a light guide piece comprises a first marker piece and a second marker piece, and the first marker piece is arranged above or below the second marker piece; the light source plate is arranged on the side face of the light guide part, a first light source and a second light source are arranged on the light source plate, light of the first light source irradiates towards the direction of the first mark part, and light of the second light source irradiates towards the direction of the second mark part; wherein a light insulation part is arranged between the first marking piece and the second marking piece. Due to the fact that the first marking piece is arranged above or below the second marking piece, light of a light source on the light source plate can irradiate towards the light guide piece from one side face of the light guide piece, the length of the light source plate can be designed according to the height of the light guide piece, the length of the light source plate is shortened, and product cost is effectively saved.

A near-eye display (10) includes a lightguide optical element (LOE) (12) with opposed major surfaces (12a, 12b), an image projector (14), a first region (16) having partially reflective surfaces (26, 27), and a second region (18) with an out-coupling arrangement (28). To suppress ghosts from single reflections at a facet or interface (25), an elongated light-deflecting structure (261, 271, 251) is provided on the first major surface (12a) adjacent thereto. The structure is configured so that a reverse-traced unguided ray from an eye-motion box (102) that would otherwise impinge the facet / interface is deflected so it does not impinge. A corrective light-deflecting structure (262, 272, 252) on the second major surface (12b) may counter-deflect rays to reduce impact on the peripheral vision. The light-deflecting structures provide beam steering without optical power and may be implemented as prisms or as diffractive / metasurface or volume-holographic elements, formed as discrete strips or portions of a continuous film.

The utility model relates to the technical field of lighting equipment, and discloses a lamp. The lamp comprises a light guide plate which comprises a front face, a back face and a side face serving as a light inlet face, and the light inlet face is provided with a convex arc-shaped area which is provided with a concave-convex structure; the lamp strip is matched with the light guide plate in shape and surrounds the light inlet surface of the light guide plate; a containing cavity is formed in the lamp holder, the light guide plate and the lamp strip are arranged in the containing cavity, the front face of the light guide plate faces the opening direction of the containing cavity, and the back face of the light guide plate faces the bottom face of the containing cavity. The arc-shaped area is provided with the concave-convex structure, the concave-convex structure can scatter light rays, the path of the light rays entering the light guide plate is changed, and therefore light ray focusing is avoided. The direction and distribution of the light are adjusted through the concave-convex structure, it is ensured that the light can be evenly spread in the light guide plate, formation of local bright spots and virtual images is remarkably reduced, and the overall lighting uniformity and the visual comfort degree are improved.

The utility model provides a special-shaped Rayleigh scattering panel lamp, which solves the problems that the traditional panel lamp mostly adopts a plane light guide plate structure, the light-emitting surface is a single plane, the shape is fixed, personalized scenes are difficult to meet and the like, and the main scheme is that the special-shaped Rayleigh scattering panel lamp comprises a light guide plate, an LED light source module, a reflection module and a lamp box, the light guide plate is integrally made of a transparent high polymer material, nanoscale scattering particles are arranged on the surface or in the light guide plate, the particle size of the nanoscale scattering particles is 10-500 nm, the nanoscale scattering particles are evenly arranged or the density of the nanoscale scattering particles is decreased progressively from the light source side to the far end, and the light emitting face of the light guide plate is of a non-planar special-shaped structure. The back faces of the light guide plates are attached through the reflection modules with the same curvature, the two ends of the light guide plates and the two ends of the reflection modules are embedded and fixed into the lamp box, and the LED light source modules are correspondingly arranged at the positions, where the light guide plates are embedded into the lamp box, of the light guide plates so as to be matched with the reflection modules for refraction.

An optical device comprises a first optical element (101), a second optical element (102), and a third optical element (103). The first optical element is rotatable with respect to the second optical element around a geometric optical axis (108) of the optical device, and the third optical element is linearly moveable with respect to the second optical element along the geometric optical axis. The first and second optical elements comprise surfaces (104, 105) facing towards each other for changing a width of a light distribution pattern in two perpendicular directions in response to rotating the first optical element with respect to the second optical element. The second and third optical elements comprise surfaces (106, 107) facing towards each other for changing the width of the light distribution pattern in only one direction in response to linearly moving the third optical element with respect to the second optical element.

The present invention provides a light source device and method that utilizes a parallel optical module including an axicon lens to efficiently collect diverging light, collimate it, and adjust the wavelength of the desired light to pass through. A tunable wavelength light source device according to one embodiment of the present invention includes a diffused light source that irradiates diffused light, a parallel light module that collimates the light irradiated from the diffused light source, the parallel light module including an axicon lens, an angle-adjustable bandpass filter module that passes light that has passed through the parallel light module and selects a specific wavelength of the light, and a mixing module that corrects an error in wavelength that is determined by the angle of incidence of light that passes through the angle-adjustable bandpass filter module.