35 results about "Guided ray" patented technology

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.

An edge-lit waveguide illumination system with a thin, flexible layer of optically transmissive material designed for guiding light through optical transmission and total internal reflection. The system features a randomized two-dimensional pattern of discrete cavities formed on its back surface, and an array of linear cylindrical lenses on its front surface. Light is emitted by a plurality of LEDs positioned along a light input edge. A sheet of reflective material is positioned coextensively on the back surface. At least one cavity features a curved wall with a specific angle. Additional components may include a photoresponsive layer, a heat-dissipating metallic substrate with side-emitting LEDs, and optical adhesives or encapsulants. The system may also incorporate luminescent centers and / or a light-diffusing layer for altering light characteristics.

The utility model provides a bearing quality detection inner diameter measuring instrument which comprises an inner diameter measuring table, a lamp wire induction frame is arranged at the upper end of the inner diameter measuring table, a light sensing plate is arranged at the lower end of the lamp wire induction frame, a light irradiation plate is arranged on the vertical mapping face of the light sensing plate, sliding grooves are formed in the two ends of the light irradiation plate, and sliding blocks and positioning springs are arranged at the inner ends of the sliding grooves. An arc-shaped plate is arranged at the outer end of the sliding block, a right-angle measuring ruler is arranged at the right-angle end of the inner diameter measuring table, a bearing is wrapped between the right-angle measuring ruler and the arc-shaped plate, the illumination plate is used for guiding light rays to accurately penetrate through an inner ring of the bearing, and the light sensing plate is used for receiving the light rays penetrating through the inner diameter of the bearing and measuring illumination intensity distribution. The arc-shaped plate and the right-angle measuring scale are matched to fix the position of the bearing, and a sensor array is distributed on the surface of the light sensing plate. According to the invention, the problems that the design of an inner diameter measuring instrument cannot rapidly measure the inner diameter of a bearing, and the measurement of the bearing is single because whether the surface of the bearing is flat or not cannot be synchronously measured in the measurement process are solved.

The application discloses a laser focusing structure and a method thereof, and belongs to the technical field of laser welding. The focusing cylinder is the main body of the laser focusing structure, and a light inlet and a light outlet for entering and exiting light are respectively arranged in the middle of the two sides of the focusing cylinder. The light assembly is arranged, the light first enters the assembly through the light collecting funnel, the light is gradually bent under the action of refraction due to the funnel-shaped structure of the light collecting funnel, and is gathered in a small area, the light can be guided to concentrate on a focal point, then the light is focused on a point through the first convex lens, the preliminary focusing of the light is realized, then the light continues to pass through the second convex lens and the third convex lens, the focal point of each convex lens is matched with the front end of the next convex lens, in this way, the light is refracted and focused for multiple times in the series arrangement of the convex lenses, each convex lens re-focuses the light and transmits the light to the next convex lens, and the focusing effect of the light is gradually strengthened.

The present application relates to a kind of pixel-level discrete integrated snapshot multispectral imaging method and system of eliminating crosstalk, using the same optical axis arrangement one imaging lens group, filter chip, secondary imaging lens group and imaging chip technology, the way of light path correction by one imaging lens group and secondary imaging lens group is guided light respectively image on filter chip, imaging chip, solve the crosstalk problem between adjacent spectral channels caused by the gap between filter chip and imaging chip;Using m×m filter channel and the pixel-level matching of imaging chip realizes pixel-level spectral imaging;Then through normalization, effective pixel position matrix screening removes invalid pixel, then through the effective pixel position matrix of corresponding working waveband and original spectral image Hadamard product, completely solve the optical crosstalk problem caused by gap and alignment error, reduce the alignment requirement of filter chip and imaging chip in pixel-level discrete integrated snapshot multispectral imaging system of eliminating crosstalk.

To provide a disaster prevention lighting fixture in which light is smoothly exchanged between an optical element of a power supply unit and the outside of the disaster prevention lighting fixture. [Solution] Disaster prevention lighting device 1 includes a housing 14, a light source housed in housing 14, a power supply unit 4 housed in housing 14 and supplying power to the light source, and a light guiding section 51. Power supply unit 4 includes a plurality of optical elements 40. Housing 14 includes a monitor panel section 140 having a monitor section 3 corresponding to power supply unit 4. Monitor section 3 has a plurality of transmitting sections 32 that transmit light. The plurality of transmitting sections 32 correspond to the plurality of optical elements 40, respectively. Light guiding section 51 includes a plurality of light guiding rods 52 arranged to guide light between optical elements 40 and the transmitting sections 32 corresponding to optical elements 40, and bridging sections 53 spanning between the plurality of light guiding rods 52.

Power-free optical light guidance and extraction system for transparent media, consisting of a transparent base medium that absorbs light, guides it within the medium and extracts it via defined structures, without electrical energy input.

The present disclosure relates to a magnet assembly for an audio speaker. The magnet assembly comprises a magnet arrangement including a through hole and a light guide. The light guide is configured to guide light through the through hole of the magnet arrangement. The light guide includes a first portion having a cylindrical shape with a longitudinal axis. The first portion has a light receiving end surface for receiving light from a light source and is configured to be inserted in the direction of the longitudinal axis into the through hole of the magnet arrangement. The light guide includes a second portion for emitting the light received at the light receiving end surface. The light guide includes a first protrusion protruding perpendicular to the longitudinal axis from the lateral surface of the first portion.

The invention provides a preparation method of a composite patterned substrate, the composite patterned substrate and an LED chip, and the method comprises the steps: forming a plurality of holes in the surface of a sapphire substrate, and carrying out the gluing, exposure and development processing, and obtaining a preset pattern; depositing a SiOF layer on the substrate; removing the preset pattern below the SiOF layer through heat treatment to form a cavity; transferring a pattern on the substrate through a nanoimprint technology; and performing inductively coupled plasma etching to form a composite pattern structure. A cavity structure is formed in a sapphire substrate through laser drilling and heat treatment, the light extraction efficiency of an LED is improved by combining with a composite pattern constructed by a nanoimprint technology and utilizing a multi-interface light scattering effect, the propagation direction of light rays can be guided by combining a patterned structure with a cavity, light emitting angle distribution is optimized, and light emitting is more uniform or the directivity is more concentrated; epitaxial growth stress is released through the cavity, dislocation density is reduced, epitaxial layer cracks are effectively inhibited, and crystal integrity is improved.

The invention discloses a head-up display light path system with a crossed light path design. The head-up display light path system comprises an image generation unit, a first free-form surface reflector, a second free-form surface reflector and a shading structural member, wherein the image generation unit is used for generating an image light beam to be projected; the first free-form surface reflector receives an image light beam generated by the image generation unit and performs first reflection; the second free-form surface reflector receives the reflected image light beam of the first free-form surface reflector and performs second reflection; the shading structural member is mounted on a light path among the image generation unit, the first free-form surface reflector and the second free-form surface reflector, and guides light propagation; light paths propagating between the first free-form surface reflecting mirror and the second free-form surface reflecting mirror are crossed under the guidance of the shading structural member. The invention further discloses a vehicle-mounted head-up display device and a motor vehicle, and the vehicle-mounted head-up display device and the motor vehicle have wide application value.

The utility model relates to the technical field of radiating fan, especially a radiating fan with light guide structure, including fan body, the fan body includes fan frame, a plurality of fan leaves and light guide structure, a plurality of fan leaves are evenly distributed with fan frame as the center in the circumference, the fan frame is provided with the cavity for accommodating luminous element, the light guide structure is a plurality of, and evenly arranged along the outer circumferential side of fan frame, the light guide structure is used for luminous element to guide light to fan leaf, and forms the preset light and shadow effect that is adapted with fan leaf, the utility model discloses the purpose lies in, provide a kind of aesthetic decoration, individualized customization and the radiating fan with light guide structure of reasonable structure.

The backlight module comprises a closed supporting structure formed by wrapping a lower iron frame with an upper rubber frame, an LED lamp is fixed to a PCB in the lower iron frame, a light guide plate is located in front of the LED lamp and guides light rays, and a diffusion plate and a diffusion film sequentially cover the light guide plate to make the light rays uniform; a plurality of spherical bosses are arranged on the front face of the light guide plate, and the spherical bosses enable light to be diffused more evenly through refraction and condensation effects. The back surface of the light guide plate is provided with a plurality of spherical concave areas which can avoid an LED backlight source and carry out secondary focusing on light rays at the same time. Compared with the prior art, the light guide plate has the advantages that the spherical bosses are arranged on the front face of the light guide plate, light can be diffused more evenly through the refraction and condensation effects of the spherical bosses, meanwhile, the spherical inwards-concave areas are arranged on the back face of the light guide plate, an LED lamp is avoided, secondary focusing is conducted on the light, and the display quality problem caused by uneven backlight in the local dimming technology is effectively solved.

Provided is a gas detection device that is compact and can perform accurate measurement. The gas detection device includes a light-emitting section (10), a light-receiving section (20), and a light-guiding section (30) that guides light from the light-emitting section (10) to the light-receiving section (20). The light-guiding section (30) includes a mirror (50) and has a shape of part of at least one spheroid. The mirror (50) is provided at a position of or in proximity to a first focal point of the spheroid. The light-emitting section (10) and the light-receiving section (20) are each provided at a position of or in proximity to a focal point of the spheroid that is not the first focal point. The light-emitting section (10) and the light-receiving section (20) are arranged in parallel to a major axis direction of the spheroid.

An optical detection unit of an optical measurement device comprises: an optical sensor configured to optically detect an object; a mirror configured to bend an optical path in order to guide light to the optical sensor; and a frame body that has a bottomless cylinder shape having two opposing openings, the frame body accommodating at least the mirror.

A light module (10) for a lighting device (2) of a vehicle (1), the light module having at least one light emitting device (19) and a light guide (24) which is suitable and determined for guiding rays which emanate from the light emitting device (19) and which are coupled into the light guide to a light exit face (A) of the light guide (24), the light module having at least one rear wall means (20) which is arranged at least partially in the light path of ambient rays (44) which are incident into the light guide (24) from the outside through the light exit face (A) of the light guide (24). According to the invention, the rear wall means (20) has at least one first rear wall region (32, 56, 67) and at least one second rear wall region (34, 57, 66), wherein the at least one first rear wall region (32, 56, 67) and the at least one second rear wall region (34, 57, 66) differ from one another in particular with respect to reflection and / or absorption properties with respect to the ambient rays (44).

The mouse pad comprises an outer frame body which is hollow from top to bottom, an upper annular clamping groove, a middle annular clamping groove and a lower annular clamping groove are sequentially formed in the inner side of the outer frame body from top to bottom, a light-transmitting contact panel covering the upper hollow portion of the outer frame body is clamped into the upper annular clamping groove, and a light guide column is installed in the middle annular clamping groove. A lamp strip is installed on the outer frame body on the inner side of the light guide column, a rack for guiding light to diffuse to the hollow portion of the outer frame body is arranged on the light guide column on the side facing the lamp strip, and a lens covering the lower hollow portion of the outer frame body is clamped into the lower annular clamping groove. The light guide column is installed in the middle annular clamping groove in the outer frame body to diffuse light rays of the lamp strip to the hollow portion of the outer frame body, the light rays are diffused out of the light-transmitting contact panel, the light ray atmosphere effect is better, and the use experience of a user is better; in addition, as the light guide column facing one side of the lamp strip is provided with the rack, the light can be guided to be diffused to the hollow part of the outer frame body, the light atmosphere effect is further improved, and the user experience is better.

A hollow-core fiber connector assembly and the process assembling thereof are disclosed. The assembly includes a Gradient-Index (GRIN) fiber, a GRIN stub and a short segment of GRIN fiber, a hollow-core fiber holder (HCF holder) to securely hold and align the hollow-core fiber with the GRIN stub, the hollow-core fiber to guide the light through its hollow core, reducing optical losses and dispersion compared to solid-core fibers; and a metal hub encasing the assembly, providing structural protection and enhancing durability.

The utility model discloses a high beam light guide piece, installation structure and car lamp, including light guide piece body, light guide piece body is made of silica gel material integral injection moulding, light guide piece body includes the light entrance portion that is provided at one end, light guide piece body other end is provided with the light exit portion, light guide portion is provided between light entrance portion and light exit portion, light guide portion is columnar silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, and the silica gel rod is cylindrical silica gel rod. The light inlet portion comprises a funnel-shaped cavity located at one end of the light guide portion, the cavity bottom of the funnel-shaped cavity is fixedly connected with a protruding light inlet protrusion, the light guide piece body of the high-distance light guide piece is integrally formed by the silica gel material in an injection molding mode, the silica gel material has good flexibility and formability, the light guide piece has a proper refractive index, and therefore the light guide piece body is not prone to falling off. Light rays can be effectively guided to be transmitted inside, light loss is reduced, yellowing or aging is avoided, meanwhile, the silica gel can be rapidly made into a light guide piece of a proper size through injection molding, ejection and other forming methods, large-scale production can be achieved, efficiency is improved, and cost is reduced.

A housing (1) for a sensor (2), comprising a housing upper part (3) and a housing lower part (4) which, when assembled, form a receiving space (5) suitable for receiving a circuit board (6) with at least one LED (15a, 15b) emitting light through the housing lower part (4), wherein several passages (10a, 10b, 10c) are formed in the housing lower part (4), each separated from the other by at least one partition (11a, 11b), and wherein a receiving space or receiving tray (9b) for an optical filter (12) formed in or on the housing lower part (4) is connected to at least one partition (11a, 11b), is characterized, with regard to the task of providing a sensor which receives signals of the light to be detected as reliably and clearly as possible, independent of the angles of incidence of the light reflected from a human or animal body onto the sensor, in that itthat a structure (7) for guiding light is formed or arranged in or on the lower part of the housing (4), which is directed towards the optical filter (12).

The application discloses a lens, an indirect lighting device and a diffuse scattering soft light indirect lighting system, relates to the technical field of diffuse scattering light illumination, and solves the technical problem that the power requirement of an indirect lighting system for an LED lamp is relatively high, energy cost is increased, and the lighting effect is poor. The lens comprises a lens body, the lens body is a central symmetrical structure, and the lens body comprises a light collecting structure, a total reflection structure, a transmission structure and a projection structure; the light collecting structure is used for accommodating the LED lamp and for constraining and guiding light rays to be output to the transmission structure and the total reflection structure; the total reflection structure forms reflected light and collimates output of stray light of the LED lamp outside a preset angle; the transmission structure performs quasi-parallel light output on light rays within the preset angle; and the projection structure uniformly distributes the light rays adjusted by the total reflection structure and performs light intensity shaping. The application forms a strip-shaped light source from a point light source of a single LED light source, and makes uniform light emission on the whole illumination surface.

The embodiment of the invention provides a light guide device and near-to-eye display equipment. The light guide device includes: a substrate; the coupling-in device is arranged on the substrate and used for coupling incident light rays from the outside into the substrate in a reflection or transmission mode so as to form guide light rays which are transmitted in the substrate through total reflection; and the second metasurface structure is positioned on a transmission path of the guide light in the substrate and is used for carrying out polarization modulation on the guide light according to the polarization state of the guide light.

An emblem includes: a light source; a light guide through which light rays radiated from the light source are guided; and an outer lens that emits light rays by transmitting the light rays radiated from the light guide. The light guide has plural reflective surfaces that reflect the guided light rays from the light source, respectively, toward respective parts of an outer circumferential portion of the outer lens.

A data carrier (1) for a secure article (10) extends along an extension direction (E) and along a transverse direction (T) perpendicular to the extension direction (E), and includes at least one light guide element (2) and at least one security element (3). The light guide element (2) is configured to guide light such that light illuminating the light guide element (2) is guided along the light guide element (2). The light guide element (2) and the security element (3) are arranged such that light guided along the light guide element (2) illuminates the security element (3). The security element (3) includes or consists of at least one light scattering element (4) configured to scatter light when illuminated by light from the light guide element (2).

Systems and methods described herein relate to displaying an image on a device capturing solar energy where a lens selectively directs light for energy capture and displays the image applied to a substrate that is bonded to the lens. In one embodiment, the system includes a lens that directs incident light within a first angular range for absorption and a second angular range for displaying an image. The system may also include viewing material applied to a substrate within predetermined areas and the viewing material forms the image. The system may also include absorption components applied to the substrate, the absorption components being located outside the predetermined areas, the absorption components capturing energy from the incident light within the first angular range, and the absorption components being hidden at the second angular range. The system may also include the substrate being bonded to the lens with a bonding material.

To provide an improved light guide part of an ophthalmic topographer.SOLUTION: The light guide comprises a light guide body 102 comprising a reference object 103, a topographical illumination source for illuminating the light guide body and the reference object, wherein the illuminated light guide body guides light for illumination of an eye to be measured, guiding optics housed within a proximal end of the light guide body for guiding light from the light guide body across a corneal contour of the eye, and reflecting optics housed at the proximal end of the light guide body for reflecting light from the guiding optics across the corneal contour through the light guide body. An ophthalmic topographer 100 with a light guide is also disclosed. A method for determining topography is also disclosed.SELECTED DRAWING: Figure 1

A hollow-core fiber connector assembly and the process assembling thereof are disclosed. The assembly includes a Gradient-Index (GRIN) fiber, a GRIN stub and a short segment of GRIN fiber, a hollow-core fiber holder (HCF holder) to securely hold and align the hollow-core fiber with the GRIN stub, the hollow-core fiber to guide the light through its hollow core, reducing optical losses and dispersion compared to solid-core fibers; and a metal hub encasing the assembly, providing structural protection and enhancing durability.

The invention relates to the technical field of car lamp illumination, and particularly discloses an interactive car lamp optical structure which comprises a decorative frame structure and a support, and the decorative frame structure is provided with a light-proof area and a light-transmitting area; the light blocking grating is arranged between the decorative frame structure and the support, the light blocking grating comprises a front light blocking piece and a rear light blocking piece, an optical film is arranged between the front light blocking piece and the rear light blocking piece, and a plurality of scattering particles are contained in the optical film; the light source module is arranged between the support and the rear light blocking piece and emits light to the light-transmitting area through the light blocking cavity, the optical film and the through hole. When light passes through the light blocking grating, the light blocking grating can restrain, block and absorb stray light of a light source, reduce the crosstalk effect and guide the light to be accurately projected to the optical film, different optical and lightening effects are formed through refraction, reflection and absorption of the optical film, and therefore the light emitting requirement of the final lightening modeling effect is met. The LED lamp has the advantages of light emitting uniformity, delicate lighting and no stray light.

The utility model relates to the technical field of vehicle-mounted touch screens, and particularly discloses a vehicle-mounted anti-reflection film which comprises a substrate. The peep-proof layer comprises a first peep-proof layer and a second peep-proof layer, the first peep-proof layer covers the substrate, the second peep-proof layer covers the first peep-proof layer, the first peep-proof layer comprises a plurality of first optical gratings extending in the first direction, and the first optical gratings are arranged at intervals in the second direction; the second peep-proof layer comprises a plurality of second optical gratings extending in the second direction, and the second optical gratings are arranged at intervals in the first direction; the surface coating covers the first peep-proof layer; wherein the distance between the middle of each first grating is larger than the distance between the two sides of each first grating, and every two adjacent second gratings are arranged at equal intervals. Light can be effectively dispersed and guided, concentrated reflection of the light in a single direction is reduced, and interference of reflected light to the sight of a driver is reduced.

A housing for a sensor, comprising an upper housing part and a lower housing part which, when assembled, form a receiving space suitable for receiving a circuit board with at least one LED which emits light through the lower housing part. A plurality of passages are formed in the lower housing part, each of which is separated from the others by at least one partition wall, and at least one partition wall is connected to a receptacle or receiving tray formed in or on the lower housing part for an optical filter. A structure for guiding light is formed or arranged in or on the lower housing part and oriented toward the optical filter. The housing enables a sensor to receive light signals as reliably and clearly as possible, independently of the angles of incidence of the light returning to the sensor from a human or animal body.

To provide a disaster prevention lighting fixture in which light is smoothly exchanged between an optical element of a power supply unit and the outside of the disaster prevention lighting fixture. [Solution] Disaster prevention lighting device 1 includes a housing 14, a light source housed in housing 14, a power supply unit 4 housed in housing 14 and supplying power to the light source, and a light guiding rod 52. Power supply unit 4 includes an optical element 40. Housing 14 includes a monitor panel section 140 having a monitor section 3 corresponding to power supply unit 4. Monitor section 3 has a transmission section 32 that transmits light. Light guiding rod 52 is arranged to guide light between optical element 40 and transmission section 32.