991 results about "Collimated light" patented technology

The invention discloses an optical chip-optical fiber coupler based on a collimating grating penetrating through a substrate, which belongs to the technical field of photoelectric chips and comprises a substrate, an inverted optical chip is arranged on the substrate, and the optical chip comprises at least one optical device, an optical waveguide array for realizing input and output and a collimating grating array. The collimating grating array is provided with a gradually changing period and duty ratio, so that light output from the optical waveguide array is diffracted to the substrate through the collimating grating array and is propagated to the back surface of the optical chip as basically collimated light; an optical coupling element array is arranged at the position, corresponding to emergent light of the collimating grating array, of the back face of the optical chip to couple light to an optical fiber array. By the adoption of the structure, high-efficiency coupling of the optical chip and the optical fiber array is achieved, and compared with a common grating coupler and an edge coupler, the coupler has higher coupling efficiency and alignment tolerance, is easier to manufacture and can be widely applied to the fields of optical IO, photoelectric sealing (CPO) and the like of large-scale photoelectric integrated chips.

A kaleidoscopic laser beam projector (KLBP) system that employs a single moving structure to project patterns of sweeping laser beams with diverse sweep directions and emission apertures. The system comprises a collimated light source, a spinning mirror deflector (“spindle / flutter mirror”) at the center, and a stationary kaleidoscopic mirror containing multiple facet mirrors arranged in a concave fashion around the spindle mirror. As the spindle mirror rotates, it directs laser beams in a radially whirling movement toward the facet mirrors, which then subdivide these beams into multiple short strokes and redirect them outward in different directions. Various embodiments include configurations with diffractive optical elements (DOEs) for beam splitting, different kaleidoscopic mirror geometries (hexagonal, octagonal, etc.), and innovative flutter mirror mechanisms that create controlled angular variations during rotation. The system enables a “4×1” configuration that replaces traditional “4×4” systems requiring eight motors and multiple moving structures. The KLBP system offers significant advantages including mechanical simplicity, reduced size and weight, improved energy efficiency, enhanced reliability, cost-effectiveness, and modular configurability. The diverse beam incidence angles enable superior illumination of complex three-dimensional objects for applications in machine vision systems, precision metrology, gap and flushness inspection, and robot-assisted assembly of complex structures.

The utility model discloses a semiconductor laser. The semiconductor laser comprises a tube shell which comprises a base and a wall seat, the base is provided with a mounting surface, and the wall seat is arranged on the mounting surface of the base and is provided with a plurality of parallel step surfaces perpendicular to the mounting surface; the plurality of collimation light path groups are arranged on the mounting surface, correspond to the step surfaces in sequence and are used for emitting a plurality of collimation light beams along a first direction parallel to the mounting surface; and the multi-path reflecting mirror group is sequentially arranged on each step surface and is used for reflecting the multi-path collimated light beams to a plane higher than the mounting surface and transmitting the multi-path collimated light beams along a second direction parallel to the mounting surface, and the second direction is different from the first direction. Through the mode, the semiconductor laser provided by the utility model can uniformly dissipate heat of the laser chip in the semiconductor laser, the cooling water channel of the base is easy to process, the light path shaping and adjusting difficulty is small, and the size of the semiconductor laser can be effectively reduced.

The invention discloses a light field display system based on collimated light and multiple light control, and relates to the field of three-dimensional display. The system is provided with a diaphragm array layer which can limit the light emitting angle of a light source layer; the square lens array layer is arranged, light emitted by the light source layer can be converted into collimated light, and the directivity of the light is guaranteed; the orthogonal prism sheet layer is arranged, so that light rays are homogenized in two dimensions, and brightness balance of all parts of a final display area is ensured; pixel light rays are projected to different positions in a space through the light control grating layer, so that left and right eyes can see different image information respectively to form stereoscopic vision; the unidirectional diffusion layer is arranged above the light control grating layer, light rays are diffused in a unidirectional manner, and the same three-dimensional effect is generated at different positions in the vertical direction; and reverse compensation is carried out through a diffusion error compensation algorithm, so that observers at different positions can obtain consistent visual experience, and finally, a three-dimensional light field display effect with uniform brightness and low crosstalk is presented.

The utility model provides a multi-axis shape and position error synchronous measuring device. The multi-axis shape and position error synchronous measuring device comprises a laser module, a light splitting steering system, a two-dimensional position detector A arranged on a sliding block of a first linear guide rail, a two-dimensional position detector B arranged on a sliding block of a second linear guide rail, and a two-dimensional position detector C arranged on a sliding block of a third linear guide rail, initial laser output by the laser module is divided into a first Y-axis collimated light beam, a second Y-axis collimated light beam and a third X-axis collimated light beam through the light splitting steering system, and the first Y-axis collimated light beam, the second Y-axis collimated light beam and the third X-axis collimated light beam enter the two-dimensional position detector A, the two-dimensional position detector B and the two-dimensional position detector C respectively. According to the utility model, multiple form and position errors such as parallelism and verticality between the guide rails can be measured at the same time through one-time measurement, one-by-one measurement is not needed, and the measurement efficiency is greatly improved.

The double-light module comprises a lens and a plurality of unit optical systems, the unit optical systems are sequentially arranged in the transverse direction, each unit optical system comprises a primary optical element and a light source, the lens is provided with a plurality of lens units connected in sequence, and the unit optical systems correspond to the lens units one to one; at least one unit optical system is a high and low beam combination unit system, the high and low beam combination unit system comprises at least one low beam light source, a low beam primary optical element, a high beam light source and a high beam primary optical element, and the high and low beam combination unit system corresponds to a high and low beam combination lens unit; the low-beam primary optical element is configured to collimate light emitted by the low-beam light source to the high-beam and low-beam combined lens unit and perform projection imaging, and the high-beam primary optical element is configured to collimate light emitted by the high-beam light source to the high-beam and low-beam combined lens unit and perform projection imaging. The system thermal risk can be improved, the light pattern broadening is effectively increased, and the cost is low.

The present invention relates to a radiation generating system (1) comprising a radiation unit (2), wherein the radiation unit (2) comprises a light source (3), a first collimator (4), and an optical arrangement (5). The light source (3) is configured to generate light source radiation (100) having a first spectral power distribution having an intensity I1,1 at a first wavelength λ1 and an intensity I1,2 at a second wavelength λ2. The first collimator (4) is configured in a light receiving relationship with the light source (3), wherein the first collimator (4) is configured to collimate the light source radiation (100) into collimated light source radiation (101) having an initial spatial light distribution (ISLD). The optical arrangement (5) is arranged downstream of the first collimator (4) and comprises an optical filter (6) and a diffuser (7). The optical filter (6) has a higher transmission for the first wavelength λ1 than for the second wavelength Xi when irradiated under a predefined angle 0. The first wavelength Xi is selected from the range of 190-230 nm and the second wavelength Xi is selected from the range of 100-190 nm and / or 230-300 nm. The optical filter (6) is configured to filter at least part of the collimated light source radiation (101) into filtered radiation (102) comprising at least portion of the light source radiation (100) of the first wavelength Xi having a first spatial light distribution (SLD1) and at least portion of the light source radiation (100) of the second wavelength λ2 having a second spatial light distribution (SLD2) different from the first spatial light distribution (SLD1). The diffuser (7) is configured downstream of the optical filter (6). The diffuser (7) is configured to diffuse at least part of the filtered radiation (102) into diffused radiation (103) comprising at least a portion of the light source radiation (100) of the first wavelength λ1 having a third spatial light distribution (SLD3) and at least portion of the light source radiation (100) of the second wavelength λ2 having a fourth spatial light distribution (SLD4) different from the second spatial light distribution (SLD2).

The invention discloses a lens mounting flange distance and decentration integrated measurement light path and a measurement method, belongs to the technical field of optical measurement, and aims to solve the problems in the prior art. According to the invention, monochromatic light emitted by a light source passes through a dodging sheet and an emergent small hole sheet and then is collimated into parallel light by a collimation off-axis parabolic mirror, the parallel light is reflected to a rear beam splitter prism by a front beam splitter prism, and the parallel light passes through the rear beam splitter prism and is propagated to a convergent lens; the convergent focus of the convergent lens reaches a to-be-tested system and is collimated again through the convergent lens after being reflected by the to-be-tested system, the collimated light after being collimated is transmitted in two paths, one path of collimated light passes through the rear beam splitter prism and the front beam splitter prism and is transmitted to the energy convergence off-axis parabolic mirror, and the other path of collimated light passes through the energy convergence off-axis parabolic mirror; after being converged by the energy convergence off-axis parabolic mirror, the light enters an optical power detector through an incident small hole sheet; and the other path of collimated light is reflected to the imaging convergence off-axis parabolic mirror by the rear beam splitter prism, and is converged in the area array CCD camera for imaging through the imaging convergence off-axis parabolic mirror.

An augmented-reality glasses comprises a plurality of panels of light emitters arranged to form an array of light emitters, wherein the array of light emitters includes light emitters of three colors; collimation optics for collimating light received from the array of light emitters; an optical coupler for receiving the collimated light; and a three-channel waveguide combiner for display of augmented-reality content to a wearer of the augmented-reality glasses, wherein each channel of the three-channel waveguide combiner respectively causes display of images of one color of the three colors generated by the light emitters. In some embodiments, the three-channel waveguide combiner is an optical waveguide with pupil replication and the optical coupler is an in-coupling optical element for coupling the collimated light into the three-channel waveguide combiner.

The utility model provides a metasurface type speckle projector and depth detection equipment, which can realize a speckle projection function based on a light source array by using a metasurface and avoid the problem of zero-order bright spots or stronger background light generally existing when a diffractive optical element is used. The metasurface type speckle projector comprises a light source array used for emitting a plurality of conical light beams arranged in an array; the light modulation element has positive focal power, is arranged on the light emitting side of the light source array and is used for collecting the conical light beams from the light source array; and the metasurface element is arranged on one side, far away from the light source array, of the light modulation element and is used for regulating and controlling the light beams gathered by the light modulation element so as to form a plurality of collimated light beams projected towards different directions.

The invention discloses a composite additive system based on programmable laser beam-double arcs and a working method of the composite additive system. The composite additive system is mainly composed of a laser unit, a beam shaping unit, a deformation optical unit, a double-arc unit, a double-wire-feeding unit, a substrate unit and a light spot shape unit. According to the system, Gaussian laser is converted into a flat-topped beam through a pi Shaper collimation beam shaper, and the shape and intensity distribution of a light spot are dynamically regulated and controlled by combining an electromagnetic actuating self-adaptive optical element; the double arc units cooperate around the laser beam to achieve gradient deposition of heterogeneous materials such as titanium / aluminum and the like in cooperation with an independently-controlled wire feeding system. A closed-loop feedback mechanism is adopted, molten pool parameters are monitored in real time through an optical sensor, laser power, electric arc parameters and wire feeding speed are dynamically adjusted, and molten pool stability and metallurgical reaction control precision are remarkably improved. The system can meet the multi-material composite additive manufacturing requirements of multifunctional parts of complex structures, and is particularly suitable for efficient forming of high-performance titanium-aluminum alloy components in the aerospace field.

Disclosed are a high-speed optical phase measurement system, a measurement method and an application thereof. The system includes an illumination module, a microscope module, an interference module, a camera module, a high-precision positioning stage and a control and data processing module. The illumination module, microscope module and interference module form an interferometer, with a preset angle between the reference mirror and the plane perpendicular to the optical axis; the high-precision positioning stage is configured to carry the sample and provide stable and accurate scanning; the emitted light from the collimated light source passes through the objective lenses and is incident on the sample and reference mirror respectively, the reflected light of the sample interferes with the reference light and is collected by the camera module; the control and data processing module implements on-line phase measurement based on the interference image.

The utility model discloses a receiving end assembly of a high-speed optical module, which belongs to the technical field of optical devices and comprises a Receptacle optical interface, an optical fiber, a capillary tube, a lens, a wavelength division multiplexer, an array lens, a prism and a substrate, the optical fiber is used for transmitting light, the capillary tube, the lens, the wavelength division multiplexer, the array lens and the prism are fixed on the substrate, the Receptacle optical interface is connected with the optical fiber, and the optical fiber is connected with the substrate. The lens is located between the capillary tube and the wavelength division multiplexer, the array lens is located between the wavelength division multiplexer and the prism, the capillary tube converges light rays and enables the light rays to enter the lens, the lens enables collimated light converged by the capillary tube to enter the wavelength division multiplexer, the wavelength division multiplexer demultiplexes wavelengths, four paths of parallel light are formed and enter the array lens, and the array lens is located between the prism and the array lens. The array lens gathers incident light, and the gathered light beam is emitted from the prism and then gathers to the focus position. According to the invention, four light beams of 0.75 Pitch are converted into four light beams of 0.25 Pitch by using the turning prism; according to the invention, four light beams with the interval of 0.25 mm can be realized at the receiving end of the optical module.

A transparent wearable data display having a source of collimated light, a deflector for deflecting the collimated light into a scanned beam, and a first of switchable grating elements sandwiched between first and second parallel transparent substrates, which together functioning as a first light guide. A first coupling is provided for directing the scanned beam into a first total internal reflection (TIR) light path of the first light guide along the first array column. The grating elements having diffracting and non-diffracting states, in their diffracting state deflecting light out of said light guide. The grating elements are switchable into their diffracting states one group of elements at a time.

The invention relates to the technical field of light paths, and particularly discloses a laser shaping system and a laser printer, the laser shaping system comprises an LD collimating lens, a rotating mirror, a focusing lens and a focusing surface which are arranged in sequence; the LD collimating lens is used for receiving a first fast-axis laser beam and a first slow-axis laser beam, converting the first fast-axis laser beam into a fast-axis collimated beam, and converting the first slow-axis laser beam into a slow-axis collimated beam; wherein the fast axis collimated light beam and the slow axis laser light beam are parallel light beams; the rotating mirror is used for performing deflection processing on the fast-axis collimated light beam to obtain a second fast-axis laser beam, and performing deflection processing on the slow-axis laser beam to obtain a second slow-axis laser beam; and the focusing lens is used for focusing the second fast axis laser beam and the second slow axis laser beam to the focusing surface. The invention can bear high-power laser, and is low in light path cost and easy to process.

The invention provides a near-to-eye display device and a preparation method thereof, the near-to-eye display device comprises a waveguide substrate, a coupling-in grating, a coupling-out grating and a metasurface lens, and the waveguide substrate comprises a light-in area and a light-out area; the coupling-in grating is located in the light incidence area of the waveguide substrate and used for enabling at least part of incident light to be coupled into the waveguide substrate along a first path. The coupling-out grating is located in the light emitting area of the waveguide substrate and is used for taking out the light coupled into the waveguide substrate and emitting the light along a second path; the metasurface lens is located in the light incident area of the waveguide substrate and used for adjusting at least part of incident light propagating along the first path from divergent light to collimated light. The overall size of the near-to-eye display device can be reduced, and the integration level of the near-to-eye display device is improved. And meanwhile, the attractiveness, portability and comfort of the near-to-eye display device can be improved.

The invention belongs to the field of optics, and particularly discloses a light spot shrinking device for an angle resolution scatterometer. Through the first lens, the beam shaping element and the second lens which are sequentially arranged along the light path, beam focusing, beam shaping and collimation are carried out in sequence, the collimated beam with the diameter smaller than that of the beam of the light source is formed, the collimated beam is combined with the subsequent light path, and the light spot shrinking function can be achieved at the detection end of the objective lens.

The invention relates to an optical fiber beam expanding contact piece and a hollow-core optical fiber connector, and belongs to the field of optical fiber connectors, the optical fiber beam expanding contact piece comprises a hollow-core optical fiber and a light transmission medium which is arranged in front of the hollow-core optical fiber and can output beam expanding collimated light, the light transmission medium is arranged in a connector pin, and the light transmission medium is a medium with a focusing function. The connector pin is mounted on the positioning piece, and the positioning piece is used for being matched and assembled with a connector shell of the hollow-core optical fiber connector; the hollow-core optical fiber connector comprises a connector shell and an optical fiber beam expanding contact piece arranged in the connector shell. Efficient optical signal transmission can be achieved, and the requirements of an optical fiber communication system for efficient and stable connection performance are met.

The utility model discloses a semiconductor laser. The semiconductor laser comprises a tube shell which comprises a base and a wall seat, the base is provided with a first mounting surface, and the wall seat is arranged on the first mounting surface of the base and is provided with a second mounting surface perpendicular to the first mounting surface; the plurality of collimation light path groups are arranged on the first mounting surface and are used for emitting a plurality of collimation light beams along a first direction parallel to the first mounting surface; the multi-path reflecting mirror group comprises a bottom reflecting mirror and a beam combining reflecting mirror which are arranged on the second mounting surface at intervals along a second direction, each reflecting mirror group is arranged corresponding to each collimation light path group, and the bottom reflecting mirror reflects the collimation light beams transmitted along the first direction to transmit the collimation light beams to the beam combining reflecting mirror along the second direction parallel to the second mounting surface; the reflecting surface of each beam combining reflecting mirror is arranged on the second mounting surface at a preset angle, so that the rear beam combining reflecting mirror is used for lifting the corresponding collimated light beam so as to cross the front beam combining reflecting mirror; and the rhombic prism is arranged on an emergent light path of the multi-path reflecting mirror group and is used for carrying out inclined compensation on each collimated light beam, so that each collimated light beam is emergent along a third direction parallel to the first mounting surface and the second mounting surface. Through the mode, the semiconductor laser provided by the utility model can uniformly dissipate heat of the laser chip in the semiconductor laser, the cooling water channel of the base is easy to process, the light path shaping and adjusting difficulty is small, and the size of the semiconductor laser can be effectively reduced.

The invention relates to a Mini-LED display submodule and a large-size naked-eye 3D display device. The Mini-LED display submodule comprises a display panel, a first grating layer and a second grating layer which are arranged in sequence. The display panel comprises a plurality of pixel units, the first grating layer comprises a plurality of first lenses, and the first lenses are used for converting emergent light rays emitted by the corresponding pixel units into collimated light rays; the focal points of the multiple first lenses are arranged in a coplanar mode, light rays passing through the first lenses can be converted into collimated light rays with unified parameters, the multiple pixel units and the multiple first lenses are arranged in a one-to-one correspondence mode, independent regulation and control of single emergent light rays can be achieved, and the problem of cross crosstalk of different emergent light rays is greatly solved in combination with collimation processing of the first lenses; by arranging the second grating layer, directional refraction can be carried out on the collimated light rays output by different first grating layers, the collimated light rays after refraction are respectively projected to different viewpoint positions in the space, and naked eye 3D display can be realized.

The embodiments of the present application provide an optical module, a display device, a display equipment and an electronic device, which are used to improve the problem that a display device provided with an anti-glare cover plate is difficult to meet the requirements of low flash point and high definition. The optical module is applied to a display device, the display device includes a display panel, and the optical module includes a uniform light layer and an anti-glare layer arranged in sequence in the light emitting direction of the display panel; the uniform light layer generates an output light intensity distribution when collimated light is vertically incident, and the light intensity attenuation within the set output angle range is less than or equal to a first threshold value, and the uniform light layer is used to uniformly mix the light emitted by the display panel, and the light after mixing by the uniform light layer can avoid the generation of flash points when it enters the anti-glare layer, so that there is no need to suppress the flash points by increasing the haze of the anti-glare layer, and the clarity of the display imaging can be guaranteed.

The invention discloses a COB-based lensless laser gas sensing module and a packaging method. The COB-based lensless laser gas sensing module comprises a COB board and a lensless light path module covering the COB board, the lensless light path module comprises a module shell, an inner cavity of the module shell is provided with a first parabolic reflector, a second parabolic reflector and a communicated light beam channel, and the module shell, the parabolic reflectors and the light beam channel form a detection gas chamber; a laser beam emitted by the laser chip is reflected by the first parabolic reflector to form approximately collimated light, and the approximately collimated light passes through the light beam channel and is focused on the photosensitive surface of the detector through the second parabolic reflector. According to the invention, the bare chips of the laser chip and the detector chip are directly bonded on the PCB, and are matched with the light path combination member with the two correlation type parabolic reflectors, so that interference noise caused by the lens is eliminated; the optical path is only composed of the COB board, the three-in-one sensing module and the protective cover, so that the production and assembly complexity is greatly reduced, and the assembly precision and stability of the optical path are improved.

The invention discloses an LCOS optical illumination system for an AR-HUD projection unit, and belongs to the field of photoelectric illumination and display technologies. The system comprises an illumination light source, a collimating lens, a fly-eye lens, an optical diffuser, a wavelength selective light combination element, a polarized light conversion device, a relay lens, a PBS prism and an LCOS display chip. The illumination light source is a three-color LED light source and is composed of a red light LED, a green light LED and a blue light LED. After red primary light, green primary light and blue primary light are collimated by the collimation system, the light parallelism is optimized, the collimated light sequentially passes through the light diffusion element to optimize the light field uniformity and the fly-eye lens to eliminate the non-uniform illumination, then is unified into a single linear polarization state by the polarized light converter, is shaped by the relay system and keeps the light beam transmission quality, and finally is transmitted to the light source. And polarization state separation and light combination are realized through the PBS prism, and finally, the light is accurately coupled to the LCOS display chip, so that high-efficiency polarization state matching and imaging quality optimization are completed. According to the HUD-PGU system, the illumination brightness of the whole system is improved, the color reducibility of the system is improved, the illumination uniformity of system imaging is improved, the light energy utilization rate of the system is improved, meanwhile, the size of the HUD-PGU is reduced, and the manufacturing cost is reduced.

The invention provides a coupling system for an on-chip light source and a photon chip. The coupling system comprises an input light source, a collimating lens, a focusing lens, a reflecting prism and an on-chip grating which are sequentially arranged in the direction of a light path, and an optical waveguide located on the side face of the on-chip grating. The collimating lens is used for primarily shaping emergent light of an input light source into a collimated light beam, the focusing lens is used for focusing the collimated light beam to the on-chip grating, and the collimating lens and the focusing lens are both aspheric plano-convex lenses. According to the system, non-uniformity caused by a large divergence angle of the semiconductor laser is effectively corrected through the aspheric micro lens, output of approximately parallel light beams is achieved, the light beams are accurately focused to the photon chip grating through the aspheric focusing lens subsequently, the coupling efficiency of light energy is greatly improved, and compared with two cylindrical lenses in the prior art, the coupling efficiency of light energy is greatly improved. The design of the focusing lens and the reflector is added, so that the number of optical elements is reduced, and error accumulation is reduced.

Apparatus and methods including miniaturization of a single focal plane collimated light-based aiming sights and their variants. One technical effect includes a user's ability to develop an effective, accurate and fast sight picture using ‘red-dot’ / reticle type sights while preserving the superior accuracy of these technologies. One new result is the reduction of the housing size, and overall footprint of the structural elements of these sights. In at least on embodiment, using LEDs, the power requirement for the aiming device is significantly lowered which means that the volume and weight of the aiming device is reduced. Accordingly, this enables positioning of the now miniaturized sight at the top of a pistol, firearm or apparatus. In at least one embodiment an aiming device is located with a firearm's front sight. In at least one embodiment, an aiming sight's structure, methods of fabrication, assembly, use includes kitting of the sights.

The invention relates to an experimental system and method for photodynamic therapy, photothermal therapy and combined research of photodynamic therapy and photothermal therapy. The experiment system comprises an optical irradiation module which comprises a plurality of laser light sources, each laser light source can output collimated light beams, the collimated light beams are combined to form a coaxial light path, and the coaxial light paths are projected to the surface of an observation object through a light beam adjusting assembly; the light path position adjusting module comprises an electric Z-axis displacement mechanism; the temperature monitoring module comprises an active temperature control substrate, an infrared thermal imager and an optical fiber temperature probe interface; the data acquisition and control module is configured to synchronously acquire laser output power, light spot area, electric Z-axis position, temperature of the active temperature control substrate, temperature sequences of a plurality of different areas and optical fiber temperature probe data, and associatively record the data with a unified timestamp; the power density can be calculated based on the real-time output power of the laser light source and the light spot area; and when the data of any temperature monitoring channel exceeds a preset safety threshold value, the laser light source is automatically controlled to close the output.

The invention relates to the technical field of communication, in particular to an optical fiber array positioning device and an optical fiber array docking device.The optical fiber array positioning device comprises an optical fiber array positioning assembly, the optical fiber array positioning assembly is composed of a first positioning shell, a second positioning shell and a third positioning shell, and the second positioning shell and the third positioning shell are movably connected in a clamped mode; an optical fiber is arranged between the second positioning shell and the third positioning shell, and a lens is arranged at the front end of the optical fiber. The optical fiber array positioning assembly is installed in a modularized mode, when optical fibers are positioned and assembled, the pressing locking assembly and the optical fiber pressurizing assembly are combined with the second positioning shell and the third positioning shell, locking and inserting connection during assembly of the second positioning shell and the third positioning shell can be achieved, auxiliary pressing of the optical fibers after locking is completed is achieved, and the optical fibers can be conveniently assembled. The optical fiber array positioning assembly is prevented from loosening, and dynamic compensation is provided for the optical fiber, so that transmission light in the optical fiber forms a collimated light beam through the lens at the end part and then is stably emitted, and the transmission loss is reduced.

The invention provides a laser pulse width broadening device and a laser system. The laser pulse width broadening device comprises a first lens array, a plurality of optical fibers with different lengths, a second lens array and a focusing lens, the plurality of optical fibers with different lengths have the same incident plane and emergent plane; the first lens array divides the laser beam; the segmented laser beams are respectively transmitted in a plurality of optical fibers with different lengths, and the plurality of optical fibers with different lengths respectively emit a plurality of light beams with different delays based on the optical path difference of the plurality of optical fibers with different lengths; the second lens array collimates a plurality of light beams with different delays; and a plurality of light beams with different delays pass through the focusing lens and then are superposed to obtain uniformly distributed light beams with target sizes. The lens array can be used for segmenting light beams and coupling the light beams into optical fibers to improve the utilization rate of the light beams. The pulse width is broadened by using the optical path difference of the optical fibers with different lengths; the micro-lens array is used for collimating the light beams, the focusing lens is used for overlapping the light spots, small light spots are formed, and follow-up shaping and light beam coupling are facilitated.

A TGV substrate via waist depth detection device has a first DOF camera, a first collimated light source and microcontroller is illustrated. The first DOF camera and first collimated light source are respectively arranged above and below the glass substrate with at least one glass substrate via, and respectively obliquely face the upper surface and lower surface of the glass substrate. The microcontroller is coupled with the first DOF camera and first collimated light source. The first collimated light source is configured to emit the first collimated beam which obliquely irradiates the glass substrate, the first DOF camera is configured to obtain the first image, and the microcontroller is configured to obtain at least one detection result of at least one glass substrate via according to the first image.

The invention provides a corneal curvature measurement system and a corneal curvature measurement device, relates to the technical field of eye imaging and measurement, can reduce the debugging difficulty of a corneal curvature measurement light source, and does not limit the imaging view of other light paths in the same system or device. The corneal curvature measuring system comprises an eyepiece set, a light source module, a camera module and a diaphragm, the light source module, the camera module and the diaphragm are located on the inner side of the eyepiece set, the light source module comprises a point light source array, the point light source array emits light or forms an image on a focal plane on the inner side of the eyepiece set, and multiple collimated light beams are emitted through the eyepiece set and enter a measured eyeball. A plurality of collimated light beams fall on the circumference of the cornea on the same latitude, a cornea light spot virtual image is formed after the collimated light beams are reflected by the cornea, then a real image is formed on the detection surface of the camera through the eyepiece group and the camera module, and the cornea curvature is measured according to the position information of the cornea light spot in the real image.