79 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.

To make a ghost inconspicuous in an optical system which has a wide angle, is lightweight, and uses polarization light.SOLUTION: An optical system OR1 guides, to an observer, light from a display element 108 for displaying an image, and comprises a first phase plate 111, a translucent reflective surface 112, a lens 104, a second phase plate 113 and a polarization separation element 114 which are arranged in the order from the display element toward the observer. The polarization separation element reflects first linear polarized light while transmits second linear polarized light in a polarization direction orthogonal to a polarization direction of the first linear polarized light. A difference is 7% or less, between a maximum value and a minimum value of reflection rates of the translucent reflective surface in first, second and third wavelengths respectively included in a wavelength rage of 430 nm to 480 nm, a wavelength rage of 520 nm to 570nm, a wavelength rage of 600 nm to 650 nm. One of lenses included in the optical system which is the closest to the display element is a negative lens having a surface convex toward the display element.SELECTED DRAWING: Figure 2

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 invention discloses a high-beam light guide piece, a mounting structure and a car lamp, the high-beam light guide piece comprises a light guide piece body, the light guide piece body is integrally formed by silica gel materials through injection molding, the light guide piece body comprises a light inlet part arranged at one end, a light outlet part is arranged at the other end of the light guide piece body, a light guide part is arranged between the light inlet part and the light outlet part, and the light guide part is a columnar silica gel rod; the light inlet part comprises a funnel-shaped cavity located at one end of the light guide part, the cavity bottom of the funnel-shaped cavity is fixedly connected with a protruding light inlet protrusion, the light guide part body of the high-distance light guide part 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 part has the proper refractive index, and therefore the light guide part 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.

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 invention relates to a lighting device (101, 102, 103, 104, 105, 106, 107, 108, 109) for a vehicle (50) or for a vehicle, comprising: a light source (12, 12L, 12R) for providing a light ray (lr); an optical element (14) for guiding light through the lighting device; a cover layer (22) comprising at least one first section (24) which is opaque to light rays and has a first color and at least one second section (26) which is transparent to light rays (lr); and a switchable layer (28) switchable between a first state, in which the switchable layer (28) is transparent or has a first color or a second color with respect to the incident light (lr), and a second state, in which the switchable layer (28) reflects the incident light; a power source (30) for applying a voltage across the switchable layer (28); and a switching element (32) for turning on and off the power source (30). Furthermore, the invention relates to a cladding part (52) comprising such a lighting device and to a vehicle (50) comprising such a cladding part and / or such a lighting device.

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.

A display (102) can have a plurality of first light sources (202) arranged in a first region (204); a plurality of lenses (206) arranged in a second region (208) above the first region (204); a plurality of opaque regions (210) and a plurality of translucent regions (212) arranged in a third region (214) above the second region (208); wherein each light source of the plurality of first light sources (202) is configured to direct light onto a lens of the plurality of lenses (206); and wherein each lens of the plurality of lenses (206) is configured to receive light from a first light source (202) of the plurality of first light sources (202) and direct the light through a translucent region of the plurality of translucent regions (212).

The utility model provides a controllable luminous throw pillow which comprises a pillowcase, a plurality of light-transmitting parts, a plurality of light-transmitting parts and a plurality of light-transmitting parts, the pillowcase is made of an opaque or semitransparent material, and the light-transmitting parts are used for forming luminous patterns; the optical fiber fabric layer is attached to the inner side of the pillowcase, at least part of the optical fiber fabric layer corresponds to the light-transmitting part, and the optical fiber fabric layer is used for guiding light to be transmitted so that the light can be emitted from the light-transmitting part; the pillow core is filled in the optical fiber fabric layer; the light-emitting device is arranged in the pillow inner, the light-emitting device comprises a power supply device, a light source and a signal receiver, the signal receiver is used for being in communication connection with an external controller, and the external controller is used for controlling the working state of the light source. The light-transmitting part is directly formed on the pillowcase, the optical fiber fabric layer can integrally emit light, the optical fibers do not need to be fixed into corresponding shapes, the integral processing process is simpler and more convenient, the light source and the optical fiber fabric layer are both located on the inner side of the pillowcase, the possibility of damage is reduced, and the service life is prolonged.

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.

A light guide for an ophthalmological topographer is disclosed. The light guide comprising a light guide body comprising a reference object; a topography illumination source illuminating the light guide body and the reference object wherein the illuminated light guide body directs light for illumination of said eye; a directing optical system housed in a proximal end of the light guide body directing light from the light guide body across said corneal profile; and a reflecting optical system housed in the proximal end of the light guide body reflecting light from the directing optical system that has traversed the corneal profile through the light guide body. Also disclosed is an ophthalmological topographer comprising the light guide. Further disclosed is an ophthalmological topographer comprising a scleral projection system. Methods of determining topography are also disclosed.

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 invention relates to a lighting arrangement (2), in particular for a motor vehicle, comprising: at least a plurality of light sources (100a, 100b) for emitting light; a light-guiding portion (200) which in relation to an optical axis (4) of the lighting arrangement (2) is disposed radially outside a radar in-coupling surface (402) for coupling in radar waves (6) of a radar-transparent portion (400), and at least partially extends along an imaginary circumferential path (220), wherein the light-guiding portion (200) has at least one light in-coupling surface (202a, 202b) that is curved perpendicularly to the circumferential path (220) and intended for coupling in light from the at least one light source (100a, 100b), wherein the light-guiding portion (200) guides the in-coupled light (102a, 102b) from the light in-coupling surface (202, 202a, 202b) towards a light transition zone (300) between the light-guiding portion (200) and the radar-transparent portion (400), and wherein the light-guiding portion (200) on the side facing the light transition zone (300) has a light-guiding surface (206) formed by a convex outer contour (204) pointing away from an optical axis (4) of the lighting arrangement (2) and a light-guiding surface (210) formed by an inner contour (208) facing towards the optical axis (4), wherein the curved light in-coupling surface (202, 202a, 202b) joins a starting point (216) of the convex outer contour (204) and a starting point (218) of the inner contour (208); and the radar-transparent portion (400), having the radar in-coupling surface (402) for coupling in the radar waves (6) and having an out-coupling surface (404) for coupling out the in-coupled radar waves (6) and for emitting a light distribution (1064) depending on the light (104) injected into the inner radar-transparent portion (400) by way of the light-guiding portion (200).

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.

To make a radiation member radiate light preferably.SOLUTION: A door mirror device enables a light guide 50 to make irradiation from an irradiation surface 52B by guiding light, and to make light irradiating from the irradiation surface 52B penetrate a lens 40 to be radiated. Here, an irradiation surface 52B of the light guide 50 is inserted in an insertion hole 44 of the lens 40. For this reason, the lens 40 can radiate light preferably.SELECTED DRAWING: Figure 7

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