188 results about "Optical alignment" patented technology

The invention relates to an automatic visual alignment method and system based on a photoetching machine and a storage medium, and relates to the technical field of optical alignment. The automatic visual alignment method comprises the following steps: sequentially focusing image taking areas according to a preset multi-light-source visual focusing mechanism, recording corresponding global focusing parameters, and collecting corresponding original single-layer images; screening all the original single-layer images according to a preset image definition threshold value to obtain a to-be-detected image, and extracting corresponding key channel features; calculating a comprehensive feature error of the key channel features according to a preset image hierarchy template, and judging an initial focusing state in combination with a preset parameter error interval; correcting the global focusing parameter according to the initial focusing state in combination with a preset cooperative calibration mechanism, generating a corresponding control signal, and cooperatively tuning the corresponding visual equipment; through multi-light-source multi-time visual image capturing, the problem of poor alignment precision caused by light source errors and image capturing errors is reduced, the image matching accuracy is improved, and the visual alignment precision is improved.

The invention relates to the technical field of laser beam shaping, discloses an active test method and system for a circuit breaker, and is used for solving the problem that the self-adaptive shaping capability of a CO2 laser beam is difficult to improve by the existing method. Firstly, a stable light path is constructed, and the stability of the light path is ensured through mechanical limiting, a thermal management module and multi-stage optical alignment; then low-power calibration is carried out, a deformable mirror initial driving table is generated through a least square inversion algorithm, and a flat-topped beam reference is established; data are collected through a wavefront sensor, a high-order mode is reconstructed, the voltage of a deformable mirror is dynamically refreshed, and wavefront control and scanning motion synchronization is ensured in combination with scanning galvanometer time sequence synchronization, closed-loop control and exception handling; monitoring the temperature of the deformable mirror, starting water-cooling adjustment, and correcting the driving table to cope with the heat effect; finally, a safety system is constructed, laser power, wavefront distortion and deformable mirror stroke parameters are monitored, dry gas purging is conducted on the diffractive optical element regularly, and safety guarantee and performance verification of the whole process are achieved.

The invention discloses an active optical alignment method based on a local lightweight language model, and particularly relates to the technical field of precision installation and adjustment, comprising the following steps: extracting image indexes and platform attitude information through image acquisition, constructing a unified input format, verifying and inputting the language model; generating a six-degree-of-freedom pose adjustment strategy and a credibility score; the strategy is executed by the platform control device after being verified by a preset criterion; scoring is performed again after execution, and whether a feature posture is recorded or error compensation is triggered is judged according to a scoring result, so that subsequent input and strategy generation are optimized, and alignment precision and stability are improved; according to the method, the data consistency is guaranteed through a unified input format and a verification mechanism, the alignment precision is improved in combination with a dynamic scoring strategy, and the stability and fault tolerance of the system are enhanced by introducing a feature attitude recording and error back-filling mechanism, so that a strategy generation and execution process with high reliability, high adaptation and high robustness in an active optical alignment task is realized.

The present disclosure is directed to imaging LiDARs with separate transmit (Tx) and receive (Rx) optical antennas fed by different optical waveguides. This pair of optical antennas can be activated at the same time through a dual-channel optical switch network, with the Tx antenna connected to a laser source and the Rx antenna connected to a receiver. The Tx and Rx antennas can be positioned adjacent to each other, so they point to approximately the same far-field angle. No optical alignment between the Tx and Rx is necessary. This LiDAR configuration, referred to herein as pseudo-monostatic LiDAR, eliminates spurious reflections and increases the dynamic range of the LiDAR.

An active infrared system may include at least one metamaterial optical element. The active infrared system may also include at least one lens assembly optically aligned with the at least one metamaterial optical element. The active infrared system may also include at least one active camera optically aligned with the at least one metamaterial optical element. The at least one metamaterial optical element of the active infrared system may also be configured with at least a reflection mode for reflecting at least one light waveband reflected by a remote object and a transmission mode for transmitting a uniform background light that is wider than the at least one light waveband reflected by the remote object.

The invention provides an array glue spraying type nanoimprint device and method, and relates to the technical field of micro-nano manufacturing, and the device comprises a substrate adsorption unit which is used for adsorbing a substrate to drive the substrate to move; the flexible leveling unit is used for adsorbing the mother set, and the substrate adsorption unit drives the substrate to move so as to enable the substrate to be aligned with the mother set, enable the substrate to be in contact with the mother set and apply imprinting force; the glue spraying unit is used for spraying imprinting glue drops which are preset in glue drop size and are arranged in an array to the surface of the substrate; the optical alignment unit is used for observing an alignment mark between the substrate and the mother set and determining the alignment state of the substrate and the mother set; the electric displacement unit is used for driving the substrate adsorption unit to move; the exposure unit is configured to expose the imprinting glue under the condition that the substrate and the master mask are aligned and compressed, so that the imprinting glue is cured; and the control unit is used for controlling all the units to execute corresponding actions.

The invention discloses a spatial moving target optical comb rapid distance measurement method and system based on a hierarchical guidance strategy, relates to the technical field of spatial moving target distance measurement, and aims to solve the problems of long alignment time, high energy consumption and high efficiency caused by the fact that traditional optical alignment before moving target scanning depends on a preset global scanning mode. And the requirements of dynamic tracking distance measurement are difficult to meet. The system is divided into a laser emitting and scanning part, an image receiving and processing part and a processor part. The laser emission scanning part utilizes the deflection of a fast reflecting mirror to change a laser light path, and scans a reflecting prism on the surface of a target; the image receiving and processing part reflects an image of a target reflecting prism to a binocular camera through a small fast reflecting mirror, and then inputs an imaging result of the camera into an image processing module to calculate a relative pose with a target; and the main processor performs target motion estimation and scanning path planning according to the relative pose information, and inputs reference path information to the fast steering mirror driving circuit to implement tracking control. Through a multi-sensor fusion sensing algorithm, accurate target sensing and positioning in a complex space environment are realized, interference such as in-orbit platform vibration and space illumination condition change under a microgravity condition can be effectively coped with, and thus the robustness and accuracy of space target detection are greatly improved.

The invention relates to an optical system installation and adjustment method based on a double-branch neural network model, relates to the technical field of crossing of optical installation and adjustment and artificial intelligence, and solves the technical problems that in the prior art, a model is limited in misalignment prediction precision, low in generalization ability and difficult to apply to an actual installation and adjustment scene. The method comprises the following steps: analyzing element imbalance sensitivity; analyzing actual installation and adjustment scene noise; generating a neural network model training data set; constructing and training a neural network model; and the neural network model is utilized to guide actual installation and adjustment. According to the optical system installation and adjustment method based on the double-branch neural network model, the noise influence in an actual installation and adjustment scene is considered in the data set of model training, the anti-noise capability and robustness of the model are enhanced, and the applicability of applying the neural network model to real optical installation and adjustment is improved.

An interferometric module, constructed in single pentagonal block to produce high quality, robust, low cost entangled-photon sources enabling polarization entanglement swapping. The compact block forms a generic platform that facilitates a comprehensive integration of optical components while allowing for quick optical alignments. Phase-stability of the self-balanced Sagnac interferometer is harnessed to offer a highly stable performance at room temperature and under sever operating conditions. High-quality entanglement is inherently achieved by equalizing two interferometric optical paths from counter-propagating photons. A periodically poled nonlinear crystal is placed between two half-wave plates, which also serve to correct the polarization states of the photons. The result is compensation-free and plug-and-play entangled-photon sources for quantum routers, distributed quantum sensing and quantum telecommunication. Wavelengths and generation rate of photon pairs are realized via the hosted crystal. Energy and polarization entanglement, and hyperentanglement can be remotely set by rotating the polarization state of the pump laser diode.

An example test system includes a probe card configured to contact a device under test (DUT); a module including a first optical connector configured to contact a second optical connector on the DUT, with the first optical connector being for a fiber optic cable; and a motion system configured to move into, and out of, contact with the module. When the motion system is in contact with the module, the motion system is configured to move the module relative to the DUT in order to align the first optical connector to the second optical connector.

The application provides a batch precise chip pasting method, comprising: pasting an integral piece of to-be-pasted chips on a base film, the base film being provided with a boss structure, and the top surface of the boss structure being provided with a first alignment mark; cutting the to-be-pasted chips based on the chip layout on a target wafer to form a plurality of independent chips on the base film; aligning the cut to-be-pasted chips with the target wafer, wherein the alignment is achieved by aligning the first alignment mark on the top surface of the boss structure of the base film with a second alignment mark on the target wafer; pasting the plurality of chips on the base film on the target wafer; and removing the base film. The application realizes super-high-precision optical alignment and solves the technical problem of direct alignment between thick chip wafers.

The utility model relates to an optical alignment assembly for an exposure machine. The optical alignment assembly comprises two optical alignment devices and a double-sided reflecting mirror, the double-sided reflecting mirror is vertically arranged on a position to be aligned of a working platform and is provided with a first vertical reflecting surface and a second vertical reflecting surface opposite to the first vertical reflecting surface, and the first vertical reflecting surface and the second vertical reflecting surface are respectively and optically coupled with the semi-transparent mirror. The double-sided reflector is provided with at least one preset pattern for imaging to an image acquisition assembly, and the preset pattern is used as a positioning reference of the to-be-aligned light.

A firearm-scope-attachable diopter lens device is provided. The device is comprised of an eyepiece-mounted optical accessory configured to affix securely over the eyepiece of a standard firearm scope without requiring any permanent modification to the scope itself. The device comprises a housing with at least one optically-aligned diopter lens, available in a range of diopter strengths to correct myopia, hyperopia, or astigmatism. In certain embodiments, the lens is installed in a removable cartridge that interfaces with the housing via a fastener such as a magnetic ring, twist-lock, or bayonet mechanism. Selective lens tinting may be applied to enhance contrast and reduce glare in varying light conditions. An optional micro-adjustment ring concentrically aligned with the lens permits fine diopter calibration in increments of ±0.25 diopters. A protective flip-up cap with a silent hinge mechanism and optional locking feature is integrated to shield the lens from debris when not in use.

The application discloses an optical connector assembly, which comprises a first transmission assembly, a second transmission assembly and an optical amplifier device. The first transmission assembly comprises a first optical cable unit, a first connecting module arranged at one end of the first optical cable unit and used for connecting with an optical / electrical integrated circuit, and a second connecting module arranged at the other end of the first optical cable unit. The second transmission assembly comprises a second optical cable unit, a third connecting module arranged at one end of the second optical cable unit, and a cable end connector arranged at the other end of the second optical cable unit and used for connecting with an application device. The optical amplifier device comprises a first end part optically aligned with the first optical cable unit and a second end part optically aligned with the second optical cable unit, so that the optical signal transmission quality is improved.

The utility model relates to the technical field of semiconductor packaging equipment, in particular to an optical alignment device for bonding equipment, which comprises a lens, a mounting seat and an eccentric pin adjusting assembly. The eccentric pin adjusting assembly comprises a first adjusting plate, a second adjusting plate, a third adjusting plate, a fourth adjusting plate, a first eccentric bolt, a second eccentric bolt and a third eccentric bolt, the mounting base is arranged on one side of the first adjusting plate, and one side of the second adjusting plate is arranged on the other side of the first adjusting plate in a left-right sliding mode; the first adjusting plate is controlled to move left and right relative to the second adjusting plate through the first eccentric bolt, one side of the third adjusting plate is arranged on the other side of the second adjusting plate in an up-down sliding mode, the second adjusting plate is controlled to move up and down relative to the third adjusting plate through the second eccentric bolt, and the fourth adjusting plate is rotationally arranged on the other side of the third adjusting plate. The third adjusting plate is controlled to rotate relative to the fourth adjusting plate through the third eccentric bolt, adjustment can be conducted in a narrow space, and multi-dimensional fine adjustment of the horizontal or vertical or rotating angle is supported.

The conductive light shield for a probe station of the present invention for cable connection pin clips includes a conductive shield body and a light-absorbing layer. The conductive shield body covers the outside of the pin clip on the probe station. The conductive shield body includes a top wall and side walls extending downwards from the edge of the top wall, with one end of the side wall away from the top wall contacting the probe station. The conductive shield body provides electrostatic shielding and optical protection, ensuring that the pin clip is protected from electrostatic discharge and stray light interference during testing, thereby improving testing accuracy and stability. Cable openings are provided on the side walls to accommodate the cable layout between the pin clip and the testing machine, ensuring that the cable can pass smoothly and maintain a normal connection with the testing system. The light-absorbing layer is disposed on the surface of the conductive shield body. The organic carbon black coating has good light absorption properties and can effectively absorb stray light from the environment, reducing interference from light reflection on the optical alignment system.

The application relates to a high-precision optical alignment assembly method of a scanning mirror, and belongs to the technical field of laser radar manufacturing equipment, and solves the technical problems of insufficient precision, no compensation for glue shrinkage, low efficiency and high cost of special equipment in the existing scanning mirror assembly. Based on the light reflection principle, the method characterizes the included angle between the scanning mirror and the motor shaft through light path amplification offset, constructs an optical alignment system by using point laser, mirror group and scale receiving plate, completes coarse adjustment and fine adjustment by cooperating with the scanning mirror adjustment jig, makes the positions of the laser spots on the scale receiving plate coincide after the motor rotates 180 degrees, and then completes UV glue curing through the light curing device, and realizes high-precision assembly by combining the glue shrinkage compensation mechanism and the quantitative verification standard. Through the optical alignment method of light path amplification offset, the quantitative adjustment, the verification standard and the glue shrinkage compensation mechanism are combined, high-precision assembly of the scanning mirror and the motor shaft is realized, the glue shrinkage preset offset compensation scheme is established, and the angle offset problem of UV glue curing shrinkage is avoided.

This invention relates to the field of vehicle electric drive assembly technology, specifically to a device and method for assembling the inner and outer housings of a motor, comprising a planar motion mechanism, a pressing mechanism, a controller, and a first positioning fixture and a second positioning fixture arranged sequentially from top to bottom; the first positioning fixture is used to position and clamp the rear end cover of the motor, thereby completing the axial positioning of the inner housing of the motor; the second positioning fixture is used to support and position the rear housing of the gearbox, thereby completing the axial positioning of the outer housing of the motor; the first positioning fixture is provided with a first optical alignment device, and the second positioning fixture is provided with a second optical alignment device; the controller first uses the first and second optical alignment devices to control the planar motion mechanism to drive the first positioning fixture to complete the coaxial positioning of the outer housing of the motor and the inner housing of the motor; the controller then controls the pressing mechanism to drive the first positioning fixture to move linearly in the vertical direction, completing the assembly of the outer housing of the motor and the inner housing of the motor.

An optical alignment system including an illumination system configured to condition a radiation beam to form a first off-axis monopole, a marker configured to diffract the first off-axis monopole to form zeroth and first diffraction orders, a projection system configured to collect the zeroth and first diffraction orders and form an image of the marker, and a sensor apparatus configured to detect the image of the marker.

An on-board optical coupling apparatus, used between two data processing devices, includes an optical waveguide including a plurality of alignment path units and waveguide paths. A first photonic device includes a plurality of first return paths and first optical channels. A second photonic device includes a plurality of second return paths and second optical channels. The first optical channels and the second optical channels are optically aligned with respective waveguide paths simultaneously with passive optical alignment of the first return paths, the second return paths, and the alignment path units in a one-time alignment process.

Disclosed is an imaging device for acquiring an image of a gemstone sample comprising gemstone data indicative of an attribute of a gemstone sample, comprising a sample holder to support the gemstone sample; an electromagnetic radiation source to generate an excitation wave for transmission to / through the gemstone sample to produce a transmitted wave modified by the gemstone sample; an optical instrument positioned relative to and optically aligned to the sample holder and electromagnetic radiation source, to modulate the excitation wave to produce a modified excitation wave, or modulate the transmitted wave to produce a modified transmitted wave; a detector optically aligned to the sample holder, the electromagnetic radiation source, the optical instrument, to detect the transmitted wave and / or modified transmitted wave incident on the detector, to acquire the image of the gemstone sample. Further disclosed is a system for determining the gemstone parameter comprising the device, and methods of manufacture.

The invention belongs to the technical field of precision test of numerical control machine tools, and discloses a split inertia measurement device and method for linear axis error detection of a machine tool. The split inertial measurement device is mainly composed of a bottom substrate, an orthogonal three-axis zero-point positioner, a single-axis inertial sensor and an integrated data acquisition module. The single-axis inertial sensors are sequentially assembled to X-direction, Y-direction and Z-direction datum planes, static calibration and standard movement track measurement are combined, multiple sets of inertial data are obtained, coordinate registration and pose calculation are achieved through data fusion, and therefore the positioning error, the straightness error and the angle deviation of the linear axis of the machine tool are obtained. The split inertial measurement device adopts a split structure and sensor multiplexing design, avoids complex optical alignment and multi-sensor configuration, and is compact in structure and convenient to mount; in cooperation with wireless data acquisition and magnetic attraction fixing modes, six-dimensional geometric error detection can be efficiently completed on a machine tool site, hardware investment is reduced, and measurement applicability and popularization value are improved.

An operating method of a space laser communication device is provided. The operating method includes a step of performing optical alignment so that one of optical systems performs optical multiple input multiple output (MIMO)-based full-duplex communication with another space laser communication device, based on motion control by a motion control device and a step of performing optical alignment so that the other optical system of the optical systems performs optical MIMO-based relay communication with another space laser communication device, based on motion control by the motion control device.

The application relates to the field of quantum information technology, in particular to a ball array packaging method for a low-temperature superconducting quantum chip. Tin-indium-gold-silver multi-element solder is adopted, which still has good toughness and superconducting characteristics in a low-temperature environment. A specific arrangement of pad arrays is arranged in the chip wiring area, a plurality of ground pads are arranged around each signal pad, a coaxial electromagnetic shielding structure is formed, and high-frequency crosstalk is significantly inhibited. A composite metal lining plate with a thermal expansion coefficient matched with the chip substrate is used, and the PCB is combined through high-thermal-conductivity adhesive material, so that the problem of thermal stress mismatch is effectively solved. The packaging supports single-layer, double-layer and three-dimensional stacked superconducting chips, and is suitable for large-scale quantum bit integration. Through optical alignment and a two-step low-temperature reflow soldering process, the welding temperature and atmosphere are accurately controlled, and thermal damage to sensitive elements such as Josephson junctions is avoided. The method solves the technical problems of high-density interconnection, electromagnetic compatibility, low-temperature reliability and the like of the superconducting quantum chip.

The application provides a complex amplitude SLM adaptive optical path alignment system and method for aligning a to-be-aligned light beam in a disturbed channel, wherein the to-be-aligned light beam in the disturbed channel is decomposed into target light and reference light after passing through a beam splitter; a wavefront sensor receives the reference light, acquires phase information of the reference light and inputs the phase information into a processor; the processor calculates a superimposed compensation amount of complex amplitude regulation according to an alignment position and generates a phase hologram, and inputs the phase hologram into a liquid crystal controller; the phase hologram comprises a plurality of concentric circles, and is used for simulating a ring-shaped blazed grating of focused light rays at a preset alignment position; a liquid crystal of a phase SLM receives the target light, the liquid crystal controller converts the phase hologram into a control voltage, and controls the liquid crystal to perform alignment output on the target light; and the application can continuously correct and align the light beam transmitted in the disturbed optical channel based on pure phase SLM complex amplitude regulation.

The utility model discloses an aircraft boarding bridge butt joint auxiliary device, the device includes longitudinal guide light source, sets up in the aircraft mouth below and sets up at least a group, is used for sending light and projects first alignment mark on the aircraft body surface, transverse guide light source, set up in the aircraft mouth top, is used for sending light and projects second alignment mark on the aircraft body surface, wherein, the aircraft mouth is provided with the reference point position corresponding with longitudinal guide light source position, longitudinal guide light source can move or set up multiple groups through drive part to adapt to different models, and the aircraft mouth is equipped with image acquisition module group. Through two -dimensional optical alignment of longitudinal and transverse light source, operator can complete once adjustment at 2m distance, realizes the accurate butt joint of boarding bridge and hatch, improves alignment efficiency and accuracy, enhances low energy visibility environment adaptability, is applicable to the quick butt joint scene of various aircraft boarding bridge.

An optical interconnection assembly is proposed that includes a shroud that is positioned over a waveguide array component and configured to drive an initial, coarse passive optical alignment between a waveguide array and a fiber array. The assembly further includes releasable clamping mechanism that is positioned over the shroud and used to hold the fiber array in its final, precise aligned position as created by the use of mating alignment features. The use of a releasable force allows for the fiber array to be removed and replaced, as necessary.

A method for manufacturing a semiconductor-based LIDAR sensor system for a vehicle, includes: providing a semiconductor optical device in a first alignment position within the LIDAR sensor system; obtaining an interference pattern associated with a first light beam that passes through the semiconductor optical device at a first location and a second light beam that passes through the semiconductor optical device at a second location; determining a position of the first location relative to the second location based on the interference pattern; and aligning the semiconductor optical device in a second alignment position within the LIDAR sensor system, based on the position of the first location relative to the second location.

Trackable retractor systems, apparatuses, devices, and methods involving: retractor blades, each retractor blade having a proximal end and a distal end, the retractor blades having a blade axis defined by a midline therebetween or thereamong; actuation arms, each actuation arm having a proximal end and a distal end, each actuation arm distal end configured to correspondingly couple with each retractor blade proximal end, and each actuation arm configured to correspondingly actuate each retractor blade; a positioning arm configured to position each actuation arm; a movable clamp configured to movably couple with the positioning arm and one actuation arm and to move the one actuation arm relative to another actuation arm; and three distinct tracking features disposed in a tracking plane, two distinct tracking features configured to correspondingly couple with the retractor blade proximal ends, one other distinct tracking feature configured to couple with the movable clamp, and each distinct tracking feature having a distinct tracking token, whereby the blade axis is maintained in a position orthogonal to the tracking plane, and whereby optical alignment is maintained along the blade axis in relation to a desired focal depth.