120 results about "Optical focusing" patented technology

The utility model discloses a hollow-core optical fiber confinement gas excitation and collection device. The device comprises a laser system, an optical focusing system, an ion separation collecting electrode, a hollow-core optical fiber and a metal steam supply system, a laser system and an optical focusing system are arranged near one end of the hollow-core optical fiber, a metal steam supply system is arranged near the other end of the hollow-core optical fiber, laser emitted by the laser system is focused on a laser incidence end face through the optical focusing system, and the metal steam supply system is connected with the metal steam incidence end face and outputs metal steam into the hollow-core optical fiber. An ion separation collecting electrode is arranged near the periphery of the laser incident end surface; during collection, the laser system emits laser, the hollow-core optical fiber serves as a working cavity, the metal steam supply system conveys metal steam, the metal steam and the laser collide with each other in the working cavity, metal atoms absorb photon energy and are excited into metal ions, and the ion separation collection electrode separates and collects the metal ions.

The invention discloses a camera module and a motor thereof. The motor for the camera module comprises a base, a movable assembly, a driving assembly and a focusing circuit board, the movable assembly comprises an anti-shake carrier which is movably mounted on the base and a focusing carrier which is movably mounted in the anti-shake carrier; the base and the movable assembly form a carrier assembly; the driving assembly comprises a focusing driving assembly and an anti-shake driving assembly, and the focusing driving assembly is configured to drive the focusing carrier to move along the optical axis direction relative to the anti-shake carrier so as to perform optical focusing; the anti-shake driving assembly is configured to drive the anti-shake carrier to move relative to the base in the first axis direction and the second axis direction perpendicular to the optical axis direction. The focusing circuit board is electrically connected to the focusing driving assembly, and at least part of the focusing circuit board extends above the carrier assembly in the horizontal direction.

An eye tracking system for a head-mounted device includes an imaging assembly and an illumination assembly. The imaging assembly is configured to optically focus light from an object plane of an eye onto an image plane of an image sensor, and the illumination assembly is configured to optically project light from an illumination source onto the object plane of the eye. The imaging assembly is configured with an imaging angle coding mapping for optical relay coupling imaging. The illumination assembly is configured with an illumination angle coding mapping for optically coupling a projection.

The invention relates to the technical field of nondestructive testing, and discloses an online rapid nondestructive testing device and method for spot welding quality of a metal film, and the online rapid nondestructive testing device comprises an infrared high-speed imaging module, an eddy current heating and measuring module, a synchronous control module and a motion compensation module. A micro-distance optical focusing lens is matched with a high-speed infrared camera, and a thermal imaging sequence of a welding spot area is collected at a preset frame frequency. The eddy current module adopts a composite multi-frequency PCB coil assembly, a heating coil layer and a measuring coil layer are integrated, the heating coil layer covers multiple rows of welding spots to achieve area heating, the measuring coil layer corresponds to the welding spots one to one, and dynamic power adjustment is achieved through a heating power controller. The synchronous control module coordinates the sequential relation of eddy current excitation, detection and infrared imaging, the motion compensation module corrects welding spot position deviation in real time through visual positioning, and the optical focusing precision is ensured. According to the invention, through synchronous acquisition and analysis of multi-modal data, rapid nondestructive detection of welding defects is realized, and the detection precision and the detection efficiency are improved.

The application discloses a 2 mu m wave band GHz solid mode-locked device based on electric regulation, belongs to the technical field of ultrafast laser and semiconductor device, and comprises a high-brightness fiber laser pumping source, an optical focusing coupling system for focusing and collimating the pumping source, a first input mirror for transmitting and reflecting the focused laser beam, a gain medium for generating and amplifying laser, a second input mirror and a third input mirror for reflecting the focused laser beam, and a two-dimensional Bi2O2Se electro-optic modulation device for modulating the laser beam. The application develops the two-dimensional Bi2O2Se electro-optic modulation device with low saturation flux, fast saturation recovery time and moderate modulation depth, so as to break through the technical barrier of solid GHz femtosecond mode-locked.

A retractable camera module is disclosed, comprising: a photosensitive assembly; and a retractable lens device held on the photosensitive path of the photosensitive assembly; wherein the retractable lens device includes: a first driving element, a second driving element, and an optical lens, the optical lens being mounted within the second driving element. In an operational state, the first driving element is configured to drive the second driving element to move along the photosensitive path, and the second driving element is configured to drive the optical lens to move along the photosensitive path to achieve optical focusing. Thus, the retractable camera module utilizes the advantages of different types of drivers in terms of driving performance to meet the optical performance adjustment requirements of the camera module, such as a relatively long focusing stroke and relatively high focusing accuracy.

The utility model belongs to an immune technology, and particularly relates to a single-molecule immunofluorescence analyzer which comprises a light source and a convergent lens, an optical channel is formed in the guide piece; the moving part is arranged on the outer side of the guide part and moves along the guide part under driving; the fixed part is used for fixing the convergent lens on the movable part, and light penetrating through the convergent lens penetrates through the optical channel; the transmission mechanism is used for converting rotation of the rotating mechanism into rotation of the moving part. The utility model has the advantages of high adjustment precision and the like, and is used in optical focusing.

A system and method are provided for imaging the full surface of an elongated object moving along its longitudinal axis using a single imaging device. The system includes a linear imaging device including an imaging sensor having a plurality of pixels and a lens between the imaging sensor and the object. The lens projects radiation from different circumferential sections of a circumferential perimeter band of the object along different imaging paths onto different pixel sets of the plurality of pixels of the imaging sensor to map the entire circumferential perimeter band onto the pixels of the imaging sensor. An adjustable image reflector in an imaging path between the linear imaging device and a circumferential section of the circumferential perimeter band of the object adjusts the optical focusing of the circumferential section on a corresponding pixel set of the imaging sensor.

The present invention relates to a method and apparatus for processing a workpiece (4), in particular to a method and apparatus for imprinting an anti-glare function through a laser pulse (100) of a laser (1), wherein the apparatus comprises: a laser (1), in particular a short pulse laser or an ultrashort pulse laser, configured to provide a laser beam (10) including a laser pulse (100); a first diffusion lens (2) and a second diffusion lens (2'), each configured to scatter the laser beam (10) and imprint a locally randomized intensity distribution on the laser beam (10) at a focal plane (12), wherein the first diffusion lens (2) and the second diffusion lens (2') sequentially scatter the laser beam (10); and at least one optical focusing system (3) configured to focus the laser beam (10) onto a focal area (120) within a focal plane (12) on the workpiece (4), wherein the laser beam (10) is applied to the workpiece (4) and consequently the workpiece is processed. The invention includes a progression device (5) configured to move a laser beam (10) and a workpiece (4) by one step (V) relative to each other, wherein the progression device includes a scanner device (50) having a first scanner element (500) and a second scanner element (502), the movement of the scanner elements (500, 502) generates one step, the second scanner element (502) includes a second diffusion lens (2'), and the movement of the scanner elements changes a locally randomized intensity distribution.

This invention relates to an instrument for cutting human or animal tissue, including an optical coupler. The cutting instrument includes - a femtosecond laser (1), - a shaping system (2) located downstream of the femtosecond laser (1) for forming a phase-modulated laser beam, - an optical scanner (4) located downstream of the shaping system (2), - an optical focusing system (5) located downstream of the optical scanner (4), and - a control unit (6) for controlling the shaping system (2), the optical scanner (4), and the optical focusing system (5). The instrument is characterized in that it further includes an optical coupler (3) between the femtosecond laser (1) and the shaping system (2), the optical coupler (3) including a photonic crystal fiber for filtering the phase-modulated laser beam (21) from the shaping system (2).

This invention provides an optical signal collection method and an optical signal collection device. The method segments and focuses a target optical signal, receives the segmented optical signal through an interface unit of an optical signal receiving module, and matches the spread of the optical signal source with the spread received by the optical signal receiving module. This method achieves complete signal transmission between the optical signal source and the optical signal receiving module. The optical signal collection device includes an optical focusing structure and an optical signal receiving module. The optical focusing structure segments and focuses the optical signal, and the interface unit of the optical signal receiving module receives the segmented optical signal. By matching the spread of the optical signal source with the spread received by the optical signal receiving module, this invention ultimately achieves low-loss optical signal transmission. This invention has the advantages of high transmission efficiency, good transmission quality, simplicity, convenience, and strong reusability.

Device and method for evaluating fracture surfaces of two fracture partners (14, 30) comprising the steps of: providing an analysis system comprising a measuring device, having an image acquisition device (42, 44) with a lens (28) adjustable, in particular with regard to optical focus, for sensorially detecting a first fracture surface of a first fracture partner and an associated second fracture surface of a second fracture partner, wherein the measuring device is configured and set up to provide sensory information of the detected fracture surfaces, a sample holder for holding the first and / or second fracture partner, an illumination device (22) for illuminating the first and / or second fracture surface to be detected by the measuring device, a display device for visually displaying sensory information provided by means of the measuring device, and arranging the first and / or second fracture partner on the sample holder.Performing optical scanning, displaying information provided by the measuring device, evaluating the sensor information of the scanned first and second fracture surfaces.

The invention relates to the field of research, development and application of novel semiconductor sensing equipment, in particular to a carbon-based sensing system based on a high-integration narrow-band imaging array and a construction method of the carbon-based sensing system. According to the invention, the carbon-based photoelectric sensing array is prepared by a liquid phase method and a transfer method with high uniformity and expandability, and a carbon-based sensing system is constructed on the basis of the carbon-based photoelectric sensing array; the carbon-based sensing system comprises a multi-pixel carbon-based sensing array based on conjugated polymer / semiconducting carbon nanotubes / metallic carbon nanotubes, an electrical readout system and an optical focusing assembly. The 4096-pixel integrated photoelectric sensing array and the carbon-based sensing system constructed by the 4096-pixel integrated photoelectric sensing array are prepared by a whole set of optimized liquid phase deposition, spin coating and transfer processes for the first time, and the system has quick response and high photoelectric response capability and can realize high-integration-level and high-performance optical signal detection and high-quality imaging functions.

The invention provides an optical lens, a camera module and an electronic device, the optical lens comprises a first lens group, a first prism and a second lens group which are sequentially arranged from an object side to an image side, the first lens group has positive focal power, the first lens group is a focusing lens group, and the first lens group is used for receiving light emitted into the optical lens; the first prism is used for reflecting the light from the first lens group at least twice; the second lens group has negative focal power, the second lens group is a focusing lens group, and the second lens group is used for receiving the light emitted from the first prism; wherein the optical lens can selectively move at least one lens group in the first lens group and the second lens group so as to realize optical focusing of the optical lens. The first lens group and the second lens group are focusing lens groups, and the optical lens can complete focusing through alternate movement of the two lens groups, so that the focusing stroke of a single lens group can be reduced, the movement precision of the lens groups can be improved, and the focusing precision of the optical lens can be improved.

The invention provides a transfer printing method and system for a cosmetic contact lens VU line printing machine, and the method comprises the steps: cleaning a flat steel plate, directly printing a pattern matched with a to-be-printed area of a cosmetic contact lens on the surface of the steel plate in an ink-jet manner, recognizing the center position of the ink-jet pattern through an optical focusing device, and locking the coordinate, and controlling the rubber head to adsorb the ink and then transferring the ink to the surface of the cosmetic contact lens, and finally performing surface curing treatment on the cosmetic contact lens. The system comprises a plurality of function modules which cooperatively execute the method. The ink jet mode is adopted to replace a traditional laser etching machining steel plate, precise positioning is achieved through optical focusing, various pattern transfer printing of cosmetic contact lenses is adapted, and technical management and control of the whole transfer printing process are improved.

The invention discloses a tissue ablation method based on double scanning modules, which comprises the following steps: firstly, acquiring a three-dimensional model and a motion mode of a target tissue, then determining a three-dimensional moving track and a two-dimensional scanning path of an optical focusing module based on the three-dimensional model and the motion mode, and moving the optical focusing module to an initial focusing position; and finally, the laser source is started to emit laser, the optical focusing module is controlled to move along the three-dimensional movement track, meanwhile, the focus of the laser is controlled to scan in the designated area based on the two-dimensional scanning path, the peak power density of the laser is not lower than a nonlinear breakdown threshold value, and the designated tissue is mechanically damaged. By means of multi-stage scanning and synchronous positioning, high-precision, large-area and three-dimensional dynamic focusing treatment can be achieved, and the high-precision and low-heat-damage controllable ablation effect is achieved.

Optical system (21) for a metrology system (1) for measuring an object (2) in the form of a lithography mask, - with an object holder (14) for holding the object (2) in an object plane (13), - with a transmissive optical focusing component (11) arranged in the beam path of illumination light (4) between a light source (5) of the metrology system (1) and an object field (12) in the object plane (13), to generate an illumination focus (16) in the beam path of the illumination light (4) after the transmissive optical focusing component (11), - wherein the transmissive optical focusing component (11) has a focal length (f1) that is less than 5 mm, - with a detection device (6) for detecting the illumination light (4) in the beam path after the object field (12), - with an imaging optic (22) for imaging the illumination focus (16) generated by the transmissive optical focusing component (11) into a further illumination focus (16') in the area of ​​the object field (12).

The invention relates to a backscatter laser spectrometry device (1) comprising a laser source (30), an optical focusing system (50), an optical separator (60), and a spectrometer (80). According to the invention, the spectrometry device comprises a beam splitter (40) arranged on an optical path of the source light beam upstream of the optical separator, wherein the optical focusing system is arranged and configured to focus a first and a second secondary excitation light beam (402, 404) onto a first and a second measurement point (202, 204), respectively, wherein the optical focusing system is adapted to collect a first and a second backscattered light beam (412, 414), respectively, wherein the optical separator is adapted to direct the first and the second backscattered light beams toward a first and a second point (822, 824) at the entrance of the spectrometer, respectively, and wherein the spectrometer directs the first and the second backscattered light beams onto a first and a second zone (842, 844) on the multichannel detector, respectively.

The invention provides a laser welding system and method suitable for a PP material large infusion container, the laser welding system comprises a main machine, a clamping device, a mechanical arm and a driving device, the clamping device comprises a fixing rod, and the fixing rod is provided with a bottle body clamping finger, a bottle opening clamping finger and a bottle cap clamping finger from bottom to top; the mechanical arm is provided with a first cantilever and a second cantilever, the first cantilever is arranged above the bottle cap clamping finger, the first cantilever is provided with an infrared temperature measurement module, a constant temperature detection module and a visual detection unit, the second cantilever is arranged between the bottle opening clamping finger and the bottle cap clamping finger, and the second cantilever is provided with a laser generation module and an optical focusing module; the mechanical arm drives the second cantilever to do horizontal reciprocating motion, and the driving device drives the bottle cap clamping finger or the bottle opening clamping finger to do vertical reciprocating motion. The PP material can be effectively prevented from being excessively heated, the risk of thermal deformation or degradation is reduced, and therefore the stability of the welding appearance quality is ensured; and a non-contact welding mode is adopted, so that the surface of the material can be prevented from being polluted, the possibility that falling objects enter the bottle is obviously reduced, and the product cleanliness is improved.

The utility model provides a kind of small-bore lens focusing device, belong to optical focusing technical field.Device includes base, screw rod motor, lens moving assembly and lens fixed assembly;Lens moving assembly includes nut assembly, first lens support, first lens, guide rail and slider;Lens fixed assembly includes second lens support and second lens;Screw rod motor drives nut assembly to move along screw rod output shaft, slider is slid along guide rail, make first lens move focusing, and first lens and second lens optical axis coaxial.Through the high accuracy and stability of screw rod transmission, avoid the problem of traditional cam focusing mechanism, focusing feed quantity is stable, compact structure, without cam and gear, suitable for small-bore lens focusing.

The invention relates to a backscatter laser spectrometry device (1) comprising a laser source (30), an optical focusing system (50), an optical splitter (60), a spectrometer (80).According to the invention, the spectrometry device comprises a beam splitter (40) disposed on an optical path of the source light beam upstream of the optical splitter, the focusing optical system being arranged and configured to focus the first, respectively second, secondary excitation light beam (402, 404) onto a first, respectively second, measurement point (202, 204), said focusing optical system being adapted to collect a first, respectively second, backscattered light beam (412, 414), the optical splitter being adapted to direct the first, respectively second, backscattered light beam to a first, respectively second, point (822, 824) of the spectrometer inlet, the spectrometer directing the first, respectively second, backscattered light beam onto a first, respectively second, area (842, 844) of the multichannel detector. Figure for the abstract: Fig. 1.

The invention discloses a modularized operation system based on ultrafast laser, which comprises a laser source, a first scanning module, an optical focusing module, a second scanning module and a control module, and is characterized in that the first scanning module is used for moving the optical focusing module to a specified position along a preset three-dimensional moving track; wherein the three-dimensional moving track is determined based on a three-dimensional model of a target surgical tissue, the optical focusing module is arranged at the tail end of the first scanning module and used for focusing laser emitted by the laser source to a designated position, and the second scanning module is arranged at the tail end of the first scanning module and used for controlling the focus of the laser to scan in a designated area. The first scanning module and the second scanning module are connected in a communication mode to ablate or cut target surgical tissue, and the control module is connected with the laser source, the first scanning module and the second scanning module in a communication mode and used for controlling the laser source, the first scanning module and the second scanning module so as to control laser energy, focal spot size, focus moving speed, focus scanning speed, focus moving track and focus scanning mode.

The application belongs to the technical field of optical focusing, and specifically discloses a near-field optical microscope light path focusing positioning method, which comprises the following steps: determining a search space of light path focusing coordinates and a step length used for searching based on a laser wavelength and off-axis parabolic mirror data; determining an initial solution in the search space of the light path focusing coordinates, and using the solution searched in the search space to represent the light path focusing coordinates; performing iterative solving through a simulated annealing algorithm based on the initial solution, an initial temperature and a cooling rate, searching for a candidate solution in the search space, obtaining a new solution between a current solution and a new solution according to the step length in the iterative solving process, and screening the candidate solution from a new solution list; and determining an optimal solution in the searched candidate solution. Through reasonable search space determination, global optimization of the simulated annealing algorithm and a judgment standard of the maximum light intensity, the optimal optical focusing point can be efficiently and stably obtained when facing the multi-peak light intensity distribution caused by mirror diffraction.

The invention provides a non-adjacent optical wedge focusing mechanism and an exposure machine, and belongs to the field of optical focusing, the optical wedge focusing mechanism comprises an upper sliding mounting plate, an optical wedge bottom plate, an upper optical wedge assembly, a lower optical wedge assembly, a sliding guide assembly and an optical wedge driving assembly; the upper optical wedge assembly and the lower optical wedge assembly form a double-wedge prism unit of which adjacent wedge surfaces slide at intervals, and the optical wedge driving assembly drives the upper optical wedge assembly to move to adjust a gap between double optical wedges so as to realize focusing; according to the optical wedge focusing mechanism, the arrangement mode that the upper optical wedge is used for driving but is not adjacent to the process lens barrel is adopted, lifting focusing of the process objective lens is replaced, therefore, the influence on the precision of the main process objective lens is reduced, the focusing efficiency and precision are high, and the optical wedge focusing mechanism can be conveniently applied and popularized in the detection and processing fields of IC carrier plates, soft plates, HDI plates, multi-layer plates, ceramic substrates, alloy plates, wafers and the like.

The utility model relates to the field of optical imaging and mechanical design, and discloses a single-lens light-incoming multi-Cmos imaging device, which comprises an optical focusing lens, an image intensifier is arranged at the bottom of the optical focusing lens, an installation assembly is arranged at the bottom of the image intensifier, the installation assembly is provided with a focusing lens and a CMOS base, and the focusing lens and the CMOS base are arranged on the optical focusing lens. The focusing lens is arranged at the bottom of the image intensifier, and the CMOS base is arranged at the bottom of the image intensifier. According to the utility model, through the sizes of imaging visual angles of a plurality of CMOS, the light inlet amount of the aperture, and the adoption of the CMOS of the same specification when a plurality of cameras are used for image acquisition, when image fusion is carried out, the image size and the data flow size can be unified, the fused image does not deviate, the difficulty of later software algorithm repair is reduced, the image quality is improved, and the image noise is reduced; meanwhile, the light incoming amount, the imaging focal length and the image size of the CMOS needing image fusion are unified, and image fusion can be more accurate.

The invention relates to the technical field of optical focusing, and discloses a variable-focus 3D printing device and a working method thereof.The variable-focus 3D printing device comprises a laser used for generating laser, a collimating mirror and a galvanometer, and the collimating mirror and the galvanometer are sequentially arranged on a light emitting path of the laser; and the focusing control system is used for adjusting the collimator according to the target light spot size of the scanning area on the working plane, so that the actual light spot size meets the target light spot size. The position of the collimating mirror is adjusted through the focusing control system according to different scanning areas on the working plane, focal length adjustment is achieved, the different scanning areas on the working plane are machined through different target light spot sizes, and the machining precision and efficiency of plastic materials are improved. Besides, when printing is carried out in the same scanning area, the actual light spot size can be adjusted in real time through a focusing control system, so that the machining precision of the fine machining scanning area is guaranteed, and the machining efficiency of the filling machining scanning area is guaranteed.

This invention belongs to the field of water-guided laser processing technology and relates to a precise control method for the optical path of a water-guided laser. The method includes: a laser generator, an optical focusing system, a water-guided system, an optical detection system, and a control system. The steps of this method include: 1. Control of the optical focusing system; 2. Control of the water-guided system; 3. Control of the optical detection system; 4. Design of the control system; 5. After the water-guided laser debugging process is completed, product processing is performed. This invention, by precisely controlling the optical path of the water-guided laser, can focus the laser beam to a smaller area, improving processing accuracy. This invention can improve processing accuracy to the sub-micron level. Therefore, this invention has higher control accuracy for the optical path of the water-guided laser, and it can also reduce processing time, improve processing efficiency, and reduce thermal damage during processing.

A solar warming apparatus includes a container with a heating band, a box that houses the container, and a lens supported by the box to focus light rays onto the heating band. The heating band conducts heat to the container's contents, while the top and bottom parts of the container are thermally insulating. In some embodiments, the lens is a Fresnel lens, and the container is rotatable via one or more rollers driven by various mechanisms, including motors or manual cranks. The system may incorporate optical focusing, safety features, and interchangeable or dual-chamber container designs to accommodate a variety of heating applications using sunlight.

This application relates to the field of semiconductor detection technology, and more particularly to a light source module, an optical focusing system, a semiconductor device, and a focusing control method. The light source module comprises multiple monochromatic light sources mounted on a substrate, each emitting light with a different wavelength, and each monochromatic light source includes at least one sub-light source. The light source module can be controlled to emit multiple illumination beams using a preset illumination mode, providing multiple independent or combined illumination channels for the subsequent focusing process. This allows the optical focusing system based on the light source module to utilize the chromatic aberration of different wavelengths of light to form a series of focal points at different positions along the axial direction, significantly expanding the effective axial focusing range of the measurement. Furthermore, the system organically integrates the light source module with a first mask, an objective lens module, a first beam splitter, a first detection subsystem, a second detection subsystem, and a processor, forming a complete, efficient, and high-precision autofocus closed-loop system.

The utility model relates to the technical field of swimming pool heating equipment, in particular to a device for heating a swimming pool by using a Fresnel lens, which comprises a thermal converter, the swimming pool, a water circulation system, an optical focusing system and a control system, and the optical focusing system comprises the Fresnel lens, a lens support rod and a lens support; the lens supporting rod is connected with the lens support, a rotating joint is arranged at the top of the lens supporting rod, and the Fresnel lens is arranged on the rotating joint; a spiral heat conduction runner is arranged in the heat converter, and the outer surface of the heat converter is coated with a high-absorptivity coating; the water inlet and the water outlet of the swimming pool are connected with the thermal converter through the water circulation system; the control system controls the optical focusing system to heat the thermal converter. According to the solar swimming pool heating device, the high light energy utilization rate of the Fresnel lens and the high conversion efficiency of the thermal converter are fully utilized, solar energy is converted into heat energy for heating a swimming pool, the problems of high energy consumption and high carbon emission of traditional electric heating and gas heating modes are solved, and energy consumption and environmental pollution are reduced.