56 results about "Guided ray" patented technology

An eyewear display device expands a field of view by projecting display light at multiple ranges of input angles to a waveguide (600) employing multiple portions of an incoupler (514) or multiple incouplers (514, 414) corresponding to the different angular ranges of display light to guide light to an exit pupil expander (416) configured to receive the display light from the different angular ranges and an outcoupler (608) that are sized to fit within an eyeglasses lens. The display light that is input from the different angular ranges is guided by the incouplers to be overlapped at an exit pupil expander (or, in some embodiments, at multiple exit pupil expanders that are overlaid with each other) to reduce the total ray footprint at the exit pupil expander.

Apparatus, system, and method embodiments are disclosed for illuminating clothing, fashion accessories, and other items using diffusion and reflection of light from a light source. A fashion accessory can include a diffusion layer to provide a unique visual appearance from the light source based on the diffusion layer's manipulation of photon wavelength. The diffusion layer can reside under an exterior shell of the fashion accessory and diffuse light from the light source, providing a unique design aspect to the fashion accessory. The fashion accessory can further include a light refraction chamber to direct light in a visually appealing way, providing variations in quality and texture of the light that an observer sees. Additional layers of material over the exterior shell can provide additional variations in quality and texture of the observed light.

The present invention relates to the field of printed circuit board back drilling technology, and in particular to a printed circuit board copper layer depth measurement device and a measurement method thereof, comprising a base, a workbench, a measuring component, a moving component and a processor. This solution uses a dual CCD lens module to perform cross-positioning compensation on the detection hole position, and combines a contact displacement sensor to measure the local board thickness in real time, effectively eliminating the influence of uneven substrate thickness; a dual semi-lens module is used to optimize the optical path, enhance the intensity of the reflected light signal, and ensure the stability of the optical measurement; the conical reflective film at the end of the probe accurately guides the light to the copper layer of the hole wall, and non-contact ranging is achieved by capturing the reflected light signals twice, and finally the precise inner layer copper depth is calculated by the processor. This method avoids mechanical contact damage while ensuring high precision, significantly improving measurement efficiency and reliability.

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 present disclosure refers to a light module for an exterior mirror of a vehicle, comprising a housing, a lens attached to the housing and including at least a first lens section that is configured to direct light in a first direction and a second lens section that is configured to direct light in a second direction, a first light emitting diode (LED) mounted within the housing, a plurality of second LEDs mounted within the housing and configured to emit light through the first lens section, and a light pipe mounted within the housing and configured to receive light emitted from the first LED and emit light through the second lens section.

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.

Configurations for an optical system used for guiding light and reducing back-reflection back in an output waveguide is disclosed. The optical system may include an output waveguide defined in a slab waveguide. The output waveguide may terminate before an output side of the slab waveguide, which may reduce the back-reflection of light from the output side back into the output waveguide. The output side may define an optical element that may steer the output light. The optical element may collimate the output light, cause the output light to converge, or cause the output light to diverge.

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 relates to a pixel-level discrete integrated snapshot-type multispectral imaging crosstalk elimination method and system, and the method employs the technology of a primary imaging lens group, a filter chip, a secondary imaging lens group and an imaging chip which are disposed on the same optical axis. Light rays are guided to be respectively imaged on the filter chip and the imaging chip in a mode of performing light path correction through the primary imaging lens group and the secondary imaging lens group, so that the problem of crosstalk between adjacent spectrum channels caused by a gap between the filter chip and the imaging chip is solved; pixel-level spectral imaging is realized by adopting m * m filtering channels and pixel-level matching of the imaging chip; then, invalid pixels are removed through normalization and effective pixel position matrix screening, and then the problem of optical crosstalk caused by gaps and alignment errors is thoroughly solved by performing Hadamard product on an effective pixel position matrix of a corresponding working band and an original spectral image; and the alignment requirement of the filter chip and the imaging chip in the pixel-level discrete integrated snapshot-type multi-spectral imaging crosstalk elimination system is reduced.

The periscopic type intelligent pen comprises a pen rack, a pen container and an image acquisition module, the image acquisition module comprises an optical sensor and a periscopic type lens module which are located on a first PCB, the optical sensor is installed on the first PCB in parallel, an acquisition port is formed in the bottom of the pen rack, and the periscopic type lens module is installed on the acquisition port. A periscopic lens module capable of guiding light to the optical sensor is embedded in the acquisition port; the first PCB is provided with a control element, the optical sensor is electrically connected with the control element, and the control element can receive and process data from the optical sensor and output corresponding operation instructions. Through the optical sensor and the periscopic lens module which are installed in parallel, the limitation of wiring factors is reduced, so that the optical sensor can be assembled in a larger size, and the recognition precision is improved; besides, the periscopic lens module is adopted to guide light, the problem that a traditional FPC soft board structure is poor in installation stability is solved, the installation stability is enhanced, the risk of falling damage is reduced, and the overall performance and user experience of the intelligent pen are improved.

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.

The utility model belongs to the technical field of optical lenses, and particularly relates to a light spot uniformizing lens which comprises a lens cup body, a light emitting face formed on the upper end face of the lens cup body, a backlight face formed on the lower end face of the lens cup body, a light inlet hole formed in the backlight face, and a reflecting face formed on the peripheral face of the lens cup body. The included angle between the tangent plane of the highest point and the horizontal direction ranges from 89 degrees to 90 degrees; according to the utility model, light rays can be guided to be projected to the curtain at a large angle or even in a direction close to the horizontal direction, so that the light rays can uniformly cover the lower half part of the curtain, including an area at the same horizontal height as the lens, yellow light is effectively avoided, and the effect of supplementary lighting is remarkably improved.

To provide a display system for use in a vehicle.SOLUTION: A display system configured to be integrated into a vehicle is provided, comprising a light source and an optical subsystem optically coupled to the light source. The optical subsystem includes a reflector and at least one semi-reflective optical member, and is configured to generate light and direct light rays to provide a plurality of virtual images that appear to a viewer concurrently at each of a plurality of different optical depths. Each of the virtual images travels a different distance within the optical subsystem before exiting the optical subsystem on a path toward eyes of the viewer.SELECTED DRAWING: Figure 1

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.

The invention relates to diagnosis and treatment equipment which comprises a diagnosis and treatment module and a first lens assembly arranged at an interval with the diagnosis and treatment module, the diagnosis and treatment module comprises an OCT module and a laser module, the first lens assembly comprises a first lens body, and a first reflecting surface in a conical ring shape is arranged in the circumferential direction of the first lens body; the first reflecting surface is used for receiving light emitted by the OCT module or the laser module and guiding the light to be reflected to the to-be-detected area. Therefore, the light rays of the OCT module can diagnose the to-be-detected area through the first reflecting surface of the conical ring, and the light rays emitted by the laser module can treat the to-be-detected area through the first reflecting surface, so that OCT diagnosis and laser treatment are integrated, and the diagnosis and treatment efficiency is improved.

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.