100 results about "Retroreflector" patented technology

A spectroscopy system including a base station having a reflecting telescope and a laser light source coupled to the telescope, the laser providing an outgoing light signal; at least one Unmanned Aerial Vehicle containing a mobile retroreflector configured to receive the light signal from the laser and return a light signal back to the telescope; a detector to record the intensity of the returning light signal; and optical components for spectroscopic measurements, the optical components utilizing the intensity of the returning light signal, revealing the presence of a chosen narrow band for the purpose of detecting a target.

And the amplification compensation repeater is used for controlling the image position. Embodiments are disclosed that are configured to optically relay laser energy beams propagating along an optical path to a scanning lens. In one embodiment, a system includes a first locator configured to move a scanning lens, and an optical repeater system configured to relay a beam path to an entrance pupil of the scanning lens. The optical repeater system includes an optical repeater having a first lens, a second lens, a first retro-reflector configured to direct a beam path to the optical repeater, a second retro-reflector, and a third retro-reflector, the second retro-reflector and the third retro-reflector located on opposite sides of the scanning lens. A second retroreflector and a third retroreflector may be located between the first lens and the second lens. The first retro-reflector is movable relative to the second retro-reflector and the third retro-reflector, and the first positioner is configured to move the scanning lens relative to the second retro-reflector.

The invention relates to a projection system having - a projector (22, 22'); and - a retroreflector (23), wherein the projector (22, 22') illuminates the retroreflector (23) and the retroreflector (23) reflects in a certain solid angle range.

The present invention relates to a device (10) for amplifying laser radiation with a laser crystal (1), in particular a plate-shaped one, and with at least two reflection devices (2, 3) for the laser radiation to be amplified, which are configured to reflect the laser radiation such that the laser radiation is passed back and forth multiple times through the laser crystal (1), wherein the reflection devices (2, 3) are designed as retroreflectors. The invention further relates to a method for amplifying laser radiation in which the laser radiation to be amplified is passed back and forth multiple times through a laser crystal (1), in particular a plate-shaped one, by means of two reflection devices (2, 3), wherein the reflection devices (2, 3) are designed as retroreflectors.

The invention discloses a laser collimation measurement system and method for a digital compensation light drift angle, and belongs to the technical field of precision measurement, and the system comprises a laser output unit, a collimating lens, a light drift angle measurement unit, a straightness measurement unit, a two-dimensional angle measurement unit and a signal processing unit. The light drift angle measuring unit measures the light drift angle through a light retroreflector, a lens and a photoelectric detector, the straightness and two-dimensional angle measuring unit obtains original measuring signals through an optical splitter and the photoelectric detector, and the signal processing unit receives signals of all the photoelectric detectors. And calculating a real straightness error and a real angle error of the measured object, and performing digital compensation on a measurement error caused by a light drift angle. Through one-way optical path design, common-path compensation and a digital algorithm, the influence of the light drift angle on the measurement precision in long-distance measurement is effectively suppressed, and the method is suitable for high-precision geometric error measurement of large equipment such as a gantry machine tool.

A device for determining the pitch angle (β) and / or the roll angle (γ) of a motor vehicle (4) comprises: at least one retroreflector (16a, 16b, 16c) having a plurality of reflector elements (18) and attachable to a surface of the motor vehicle (4); at least one image acquisition device (10) designed and configured to take at least one image of the motor vehicle (4), wherein the at least one image also includes an image of the at least one retroreflector (16a, 16b, 16c); and an evaluation device (14) designed and configured to evaluate the at least one recorded image in order to determine the pitch angle (β) and / or the roll angle (γ) of the motor vehicle (4).

Low dispersion reflector. A retroreflector comprising a front boundary surface configured for incoming measurement light into the retroreflector, a back boundary surface configured for reflecting the measurement light as reflected measurement light. The front boundary surface and the back boundary surface are arranged on opposite sides of the retroreflector and define an optical axis by the arrangement of the front boundary surface and / or the back boundary surface, wherein an angle of incidence of the measurement light relative to the optical axis is equal to an angle of exit of the reflected measurement light relative to the optical axis. A first optical element comprising the front boundary surface and a second optical element comprising the back boundary surface are provided. The front boundary surface and the back boundary surface are of a curved shape, the first optical element and the second optical element have different shapes and / or sizes, the first optical element is connected to the second optical element, and the retroreflector is configured such that the measurement light entering the retroreflector at the front boundary surface is focused at the back boundary surface.

The invention relates to a lighting device for a vehicle, having a flat light guide unit (2) for generating a predefined light function, comprising: opposite flat sides (9, 10), on which coupled light (L1, L2) can be totally reflected within the flat light guide (8) in a light guide direction (11); the invention relates to a lighting device (1) having a flat side (2), a narrow side (12, 12 ') connecting the flat side, at which light energy generated by a light source (13) is coupled into a flat light conductor, and having a retroreflector unit (3) for generating a retroreflective function, which retroreflector unit comprises a plurality of retroreflective elements (18) arranged in a plane, the retroreflector unit is arranged offset from the flat light conductor of the flat light conductor unit in the main emission direction (H), the flat light conductor of the flat light conductor unit being arranged downstream of the retroreflector unit in the main emission direction.

The utility model discloses a laser tracker target ball, including the spheroid, the spheroid has the cavity, be equipped with the opening of the intercommunication cavity on the spheroid, the opening place threaded connection has the compression circle, is equipped with the lens seat and cubic angle retroreflector in the cavity, and the compression circle is equipped with the sheath between the lens seat. The utility model discloses a laser tracker target ball, cubic angle retroreflector and lens seat are fixed after preliminary calibration, and after being loaded into the target ball inside, it is convenient to adjust the relative spatial relation. After product is completed, optical and physical structure are relatively stable, and the ability that resists external interference is strong. Compression circle structure design is reasonable, and cooperate sheath, play the role of reinforcing the internal structure of spheroid, form protection to cubic angle retroreflector again, improve the service life of target ball. Spheroid and base adopt magnetic attraction force connection, and the installation dismounting is convenient, promotes work efficiency and guarantees the measuring accuracy.

The invention relates to an arrangement for an optical component of a lighting device for a motor vehicle and a lighting device for a rear region of a motor vehicle. The invention relates to a lighting device, comprising a plurality of light sources, a light guide having an entry surface and an exit surface, and a cover plate, the lighting device being designed such that light generated by the light sources at least partially enters the at least one light guide through the entry surface, exits the light guide through the exit surface, and exits the lighting device through the cover plate, according to the invention, the lighting device is provided for generating a light function of the tail lamp, the brake lamp and the driving direction indicator, the exit surface of the light guide serves at least partially as a light-emitting surface for the light function of the brake lamp and the driving direction indicator, and the light-emitting surface has a dimension of at least 50 cm2. The lighting device may include an arrangement of optical members, the retroreflector being arranged behind the light conductor such that light impinging on the light conductor passes through the light conductor, impinging on the retroreflector, reflected back by the retroreflector, and again passes through the light conductor.

Apparatus for and method of aligning optical components such as beam splitters in an optical pulse stretcher in which a landing spot of a beam which has traversed a portion of the optical beam splitter and a coincident landing spot of a beam split from a retroreflected input beam are made to align on a target spot. Also disclosed is an apparatus and method for aligning the retroreflector to facilitate proper beam alignment. A fluorescent material may be used to render a beam landing spot visible.

Disclosed is a phase measurement device, comprising: a first wave plate, a first polarization splitting prism, a fourth wave plate, a retroreflector, a third wave plate, a reflector, a second wave plate, a polarizer, a second polarization splitting prism, a third polarization splitting prism, a first photoelectric detector, a second photoelectric detector, and a base, wherein the first to third polarization splitting prisms and the first and second photoelectric detectors are fixed on the base; the first to fourth wave plates are respectively arranged around the periphery of the first polarization splitting prism; the polarizer is arranged on an emitting surface of the third polarization splitting prism; the retroreflector is arranged on an outer side of the fourth wave plate; and the reflector is arranged on an outer side of the third wave plate. An interferometric signal is resolved to obtain a measurement light beam phase.

This reflector comprises: a deflection optical member (5) that is provided on an incident optical axis (3) of measurement light and reflects the measurement light; and a retroreflector (6) that retroreflects the measurement light on a reflection optical axis (3') of the deflection optical member. The reflector is configured to form a virtual image of the optical center of the retroreflector on an extension of the incident optical axis.

An apparatus, system, and computer-implemented method that correct for thermal drift in one or more optical elements in an optical device and maintain high precision accuracy of the optical device during extreme temperature changes. The apparatus includes an optical device having an optical element configured to direct or reflect a light beam, a pivot support configured to hold a portion of the optical element and facilitate motion of the optical element in multidimensional space, a controller configured to determine a displacement of the optical element due to thermal drift and generate an actuator drive signal based on the amount of the displacement, and an actuator configured to receive the actuator drive signal and counteract the thermal drift by moving, in cooperation with the pivot support and in response to the actuator drive signal, the optical element by an inverse amount and direction of the displacement of the optical element.

A reflector (3) is provided with an optical member (7) having at least four reflective surfaces that internally reflect incident measurement light. The optical member includes a retroreflector comprising, among the reflective surfaces, three surfaces that are capable of retroreflection. At least one of the reflective surfaces constitutes an optical deflection unit that deflects the incident measurement light so as to guide the same to the retroreflector and that deflects the measurement light having been retroreflected by the retroreflector so as to emit the same in a direction opposite to the direction of the incident measurement light. Further, the optical member is configured such that a virtual image of the optical center of the reflector is formed on the extension of the incident optical axis.

An air floating video with high visibility suitable for use in a vehicle is provided that contributes to Sustainable Development Goals 3: “Ensure healthy lives and promote well-being for all at all ages,” and 9: “Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation.” The air floating video display apparatus includes a housing which is attachable at a position near a ceiling or a rearview mirror in the vehicle and stores a video display apparatus. A retroreflector on which a λ / 4 plate is provided and a polarization separation member arranged at a predetermined angle are provided outside the housing. A video light of a specific polarized wave from the video display apparatus is subjected to polarization conversion via the polarization separation member, the retroreflector, etc., and an air floating video is displayed at a predetermined position on the basis of the video light of the other polarized wave.

The invention relates to a system (1) for digital holographic imaging, comprising at least the following components: - a beam splitter (2), - a retroreflector array (3) comprising a plurality of retroreflector elements (30), - a reference mirror (4), wherein the system (1) is configured to superimpose the object light (100) reflected off the reference mirror (4) and off the retroreflector array (3) such that a plurality of interference patterns that can be assigned to the respective retroreflector elements (30) are produced, wherein the system (1) has a phase-adapting optical structural component (5) for predefined phase adaptation of the object light (100), characterized in that the phase-adapting optical structural component has an assigned angle-of-incidence / phase relation (1000) for each of a predefined plurality of incidence directions (e) of the object light (100), wherein the phase-adapting optical structural component (5) is configured to impress phases (Φ) on the object light (100) in accordance with the assigned angle-of-incidence / phase relation (1000) for each of said plurality of incidence directions such that the interference patterns comprise information with which a hologram correspondingly reconstructed from said interference patterns has an improved resolution with respect to a system (1) without the predefined phase adaptation.

An optical assembly for demultiplexing wavelength channels includes a retro-reflecting Z-block of optically transmissive material having a port facing face and a back face. An optical port assembly including an array of channel ports and a common port is proximate to the port facing face. An array of optical filters is located along the port facing face in an optical alignment with respective optical ports. The filters are configured to selectively transmit light of corresponding wavelength channels. The back face of the retro-reflecting Z-block includes a main reflective surface between first and second angled reflective surfaces. The first and second angled reflective surfaces together form a retroreflector for light entering the retro-reflective Z-block via the common optical port.

A wireless optical power transmission system comprising a transmitter that outputs an optical power beam through an optical aperture, the transmitter comprising: (a) a laser that generates the optical power beam, (b) a deflection module for directing the optical power beam, and (c) a controller adapted to adjust the deflection module. The system also has a receiver, the receiver comprising a retroreflector having a cat-eye configuration adapted to return a retroreflected beam from at least a portion of the optical power beam incident thereon back toward the transmitter optical aperture. The cat-eye retroreflector should have an optical performance level that introduces aberrations into the retroreflected beam, the level of aberrations being such that the retroreflected beam has a divergence that is sufficiently large that the 1 / e 2 diameter of the retroreflected beam at the optical aperture is greater than the diameter of the optical aperture.

A reflective marker (125) for a cleaning robot (105) with a LiDAR sensor (120) comprises a first (130) and a second section (135) adjacent to each other; wherein the first section (130) is highly reflective and the second section (135) is low reflective, the first section (130) comprising a retroreflector.

A buried solar light-emitting and light-reflecting spike comprises a protective shell (1), an inner shell (2), a retroreflector (3), a light-emitting device (4), a photovoltaic device (5), an electronic circuit component (6), a packaging adhesive curing forming body (7) and a fastener (8), at least the top of the inner shell (2) is of a transparent material structure, the protective shell (1) is provided with a containing cavity (1q) with an upper opening, and an upper protruding body (1t) is arranged on the non-opening portion of the top of the protective shell (1). The protective shell (1) or / and the inner shell (2) is / are provided with a containing hole groove (3d), the containing hole groove (3d) and the retroreflector (3) are combined to form a lateral retroreflection structure, and all the components are packaged in a double-shell structure formed by combining the protective shell (1) and the inner shell (2) through a fastener (8) through a packaging glue curing forming body (7) to form the buried solar light-emitting and light-reflecting spike with a waterproof packaging structure and a high-strength structure. The inner side face of the upper convex body (1t) and the outer side face of the top of the inner shell (2) form a mechanical protection combined structure in a tolerance fit mode.

This invention incorporates radar retroreflector capability into current road stud retroreflectors by increasing their size and arranging them in a different manner. Adhesion between road stud and adhesive are improved by embedding fibers into the road stud body which protrude into the adhesive. Daytime visibility is improved with addition of reflective features. The modified road stud may form a guide path for human drivers and autonomous vehicles.

A system may comprise a first light source adapted to emit first light; a second light source adapted to emit second light; a beamsplitter adapted to: reflect a portion of the first light as reflected first light, and reflect a portion of the second light as reflected second light. The system may comprise a retroreflector, comprising a retroreflective material and a reflective surface, adapted to: reflect the reflected first light to provide a first image at a first location, and reflect the reflected second light to provide a second image at a second location. The system may comprise a first sound source adapted to output a first sound audible at the first location; a second sound source adapted to output a second sound audible at the second location. The system may comprise a controller adapted to cause the sounds to be output based on the light being emitted.

A retroreflecting sensor includes a corner cube retroreflector having three mutually orthogonal reflective surfaces. A sensor element is disposed on at least a portion of one of the reflective surfaces. The sensor element modulates a phase and / or an amplitude of incident light as a function of a measurand so that when illuminated by incident light, a diffraction pattern is reflected to a remote optical imaging device configured to capture and analyze the diffraction pattern to extract measurement data associated with the measurand.

A display device includes a beam splitter configured to reflect a part of incident light and transmit another part of the incident light, a retroreflector configured to reflect the incident light back in a direction opposite to a direction in which the incident light is incident, and an image projector on a side of the beam splitter, the image projector being configured to emit a light providing an image, wherein the image providing device, the beam splitter, and the retroreflector are arranged such that the light emitted from the image providing device is incident on the beam splitter, the light reflected from the beam splitter is incident on the retroreflector, and the light reflected by the retroreflector is incident on the beam splitter.

The present disclosure relates to multi-channel optical transmitter modules, lidar systems, and methods that involve micromirror devices. An example optical transmitter module includes at least one light-emitter device and a plurality of micromirror devices optically-coupled to the at least one light-emitter device. The at least one light-emitter device is configured to emit respective light beams toward an environment via the micromirror devices. The micromirror devices are configured to deflect the light beams. The optical transmitter module also includes a controller having at least one processor and a memory. The controller is configured to carry out operations. The operations include receiving information indicative of a retroreflector object in the environment. The operations include, based on the received information, causing at least one micromirror device of the plurality of micromirror devices to deflect at least one light beam so the at least one light beam does not interact with the retroreflector object.

A method, apparatus and system for performing optical positioning. The apparatus comprises a laser transmitter configured to transmit a laser beam toward a retroreflector, where the location of retroreflector is known and the retroreflector reflects the laser beam and imparts modulation onto the laser beam. An optical receiver receives the reflected laser beam reflected from the retroreflector and a processor extracts a code from the modulation, determines the location of the retroreflector and calculates the distance from the apparatus to the retroreflector and uses the code and distance to determine a position of the apparatus.

The air floating video display apparatus includes: a video input I / F; a video processing circuit processing a video, based on an input video to be input via the video input I / F; a video display displaying the processed video; and a retroreflector reflecting video light emitted from the video display to form the air floating video. An optical path length of the video light emitted from a display surface of the video display, starting from when the video light is emitted from the display surface and then is reflected on the retroreflector to when the video light reaches a position of the air floating video, differs depending on a position on the display surface from which the video light is emitted, and the video processing circuit performs a different video sharpness / detail processing to a plurality of positions of a video based on the input video.

Optical receiver (2) comprising a semitransparent retroreflector (1; 100; 101; 102; 103; 104) configured to assist in a retroreflector based beam alignment procedure for the optical receiver (2). A photodetector (12) of the receiver is placed behind the retroreflector. The semitransparent retroreflector (1; 101; 102) comprises a coating (5) applied to an optical component of the optical receiver (2), or the semitransparent retroreflector (100; 103; 104) comprises an optical material introduced by replacing at least a part of an original optical material of an optical component of the optical receiver (2). Optical wireless communication system comprising the optical receiver.

The invention relates to a system (1) for digital holographic imaging, comprising at least the following components: - a beam splitter (2) - a retroreflector array (3) comprising a large number of retroreflector elements (30), - a reference mirror (4), wherein the system (1) is configured to superimpose the object light (100) reflected by the reference mirror (4) and by the retroreflector array (3) so that a multitude of interference patterns attributable to the respective retroreflector elements (30) are created, wherein the system (1) has a phase-adapting optical structural component (5) for predefined phase adaptation of the object light (100), characterized in that the phase-adapting optical structural component has an associated angle-of-incident phase relation (1000) for each of a predefined plurality of incidence directions (e) of the object light (100), wherein the phase-adapting optical structural component (5) is configured to imprint phases (Φ) on the object light (100) for each of these plurality of incidence directions according to the associated angle-of-incident phase relation (1000), so that the interference patterns contain information with which a hologram reconstructed accordingly from these interference patterns has an improved resolution with respect to a system (1) without the predefined phase matching.