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992 results about "Lens array" patented technology

Method and system for preparing photoresist micro-lens array

The invention discloses a photoresist micro-lens array preparation method and system, and relates to the field of micro-nano optical device manufacturing. The preparation method of the photoresist micro-lens array comprises the following steps: carrying out chemical mechanical polishing treatment on a silicon wafer, spin-coating photoresist on a substrate to form a cylindrical array, and eliminating solvent gradient through pre-drying; forming a fluorocarbon nano film on the surface of the photoresist through plasma deposition so as to reduce the surface energy of the photoresist; realizing hot reflux of the photoresist based on gradient annealing, wherein the gradient annealing comprises a preheating section, a main reflux section and a stable section; on the basis of the preheating section, glass transition stress is avoided, fluorine-containing gas and inert gas are synchronously introduced into the main backflow section to act on a plasma sheath layer, so that the flowing direction of photoresist is regulated and controlled, and the edge coffee ring effect is inhibited; the stable section synchronously performs plasma assistance to lock the shape; and the precision and the consistency of the micro-lens array are improved through segmented temperature regulation and control and a plasma auxiliary technology.
Owner:浙江优众新材料科技有限公司

Camera module, electronic device and vehicle instrument

A camera module includes an imaging lens assembly module and an image sensor. The image sensor is disposed on an image surface of the imaging lens assembly module and includes a photoelectric converting layer, a micro lens arrays layer, a light filtering layer and an anti-reflecting layer. The photoelectric converting layer is for converting a light signal to an electric signal. The micro lens arrays layer is for converging an energy of the imaging light into the photoelectric converting layer. The light filtering layer is for absorbing a light at a certain wavelength region of the imaging light. The anti-reflecting layer is disposed on a surface of at least one of the light filtering layer and the micro lens arrays layer and includes an irregular nano-crystallite structure layer and an optical connecting layer. The optical connecting layer is connected to the irregular nano-crystallite structure layer.
Owner:LARGAN PRECISION

Image sensor

An image sensor including a substrate having first and second surfaces, the second surface opposite the first surface; a first deep trench isolation layer in the substrate and defining pixel region groups, each pixel region group having a pair of pixel regions; a second deep trench isolation layer between the pair of pixel regions of each pixel region group; photoelectric conversion areas in each pixel region; and a lens array on the second surface and composed of two-dimensionally arranged microlenses. Each microlens having a shape, in plan view, with a long axis and a short axis, the short axis being substantially perpendicular to the long axis and shorter than the long axis. The microlenses covering each pixel region group, and a width of at least a first portion of the second deep trench isolation layer being smaller than a width of the first deep trench isolation layer.
Owner:SAMSUNG ELECTRONICS CO LTD

Micro-LED chip array integrated with homogeneous microlens array and preparation method thereof

The invention discloses a Micro-LED chip array integrated with a homogeneous micro-lens array and a preparation method thereof, and the method comprises the steps: carrying out the wafer-level precise bonding of a Micro-LED light-emitting pixel array and a CMOS drive circuit substrate, removing a substrate, integrating a homogeneous pixel-level GaN micro-lens array on a GaN-based pixel array through the photoetching, hot melting backflow and dry etching technologies, and carrying out the precise bonding of the micro-LED light-emitting pixel array and the CMOS drive circuit substrate. And finally, realizing the full-pixel common cathode conduction of the Micro-LED chip by adopting a metal interconnection process. According to the method, the Micro-LED pixel array and the micro-lens array are homogeneously integrated, are made of the same material and have no refractive index difference, so that no Fresnel loss exists on an interface, and the light extraction efficiency of a chip is improved. In addition, the method is simple in manufacturing process, low in cost, good in chip structure reliability, high in stability and suitable for being applied to industrial chip manufacturing.
Owner:NANCHANG UNIV +2

Structure for improving light extraction efficiency of Micro-LED and manufacturing method

PendingCN120936160ALight beamEngineering
The invention relates to a structure for improving the light extraction efficiency of a Micro-LED and a manufacturing method, and the structure comprises a basic function layer, a micro-lens optical regulation and control layer and a micro-nano secondary structure which are sequentially arranged from bottom to top, and the micro-lens optical regulation and control layer and the micro-nano secondary structure form a core optical function unit; the micro-lens optical regulation and control layer is a tightly-arranged hemispherical micro-lens array, the bottom face of each micro-lens is a circular plane completely attached to the top end of the basic function layer, the micro-nano secondary structure is located on the outer spherical face of the micro-lens optical regulation and control layer, and the micro-nano secondary structure and the hemispherical curved face of the micro-lens optical regulation and control layer form a sawtooth-shaped protruding array. The height direction of the sawtooth-shaped protrusions always extends in the spherical surface normal direction of the position where the sawtooth-shaped protrusions are located, a micro lens and a micro-nano secondary structure are designed on the Micro-LED device in an integrated mode, Micro-LED emergent light beams are shaped, the proportion of front emergent light beams is increased, the divergence angle is reduced, meanwhile, the light extraction efficiency can be improved, and the performance limit of the Micro-LED device is broken through.
Owner:JINHUA JUEYUAN CHUANGZHI TECHNOLOGY CO LTD

3D printing auxiliary arc-shaped mirror wall forming method of flexible optical lens array

The invention discloses a 3D printing auxiliary arc-shaped mirror wall forming method for a flexible optical lens array. The method comprises the steps that an ideal optical model of the flexible optical lens array is established, and physical parameters of a forming material are obtained; performing multi-physical field coupling simulation on the whole forming process to predict and quantify an initial deviation field generated by physical deformation; according to the deviation field, a pre-distortion mold three-dimensional model capable of actively compensating deformation is generated through iterative calculation of a reverse topological optimization algorithm; printing a high-precision physical mold according to the model by using additive manufacturing equipment; injecting a liquid flexible material into the physical mold for curing and molding, and demolding to obtain a flexible optical lens array; according to the invention, active and high-precision control of forming deviation is realized, the product precision and research and development efficiency are improved, the manufacturing cost is reduced, and a set of standardized and intelligent solution is provided for precision manufacturing of complex flexible optical elements.
Owner:NANJING JUNYOU PHOTOELECTRIC TECH CO LTD

Display substrate and manufacturing method therefor, and display device

PCT designated stageWO2025247049A1Display deviceMicro lens array
A display substrate and a manufacturing method therefor, and a display device, relating to the technical filed of display. The display substrate comprises: a light-emitting substrate (11), comprising a light-emitting area (AA), the light-emitting area comprising a plurality of sub-light-emitting areas (EA); a packaging layer (12), arranged on the light exit side of the light-emitting substrate, the surface of the packaging layer facing away from the light-emitting substrate comprising a plurality of recessed areas (AX), the recessed areas being recessed towards the side close to the light-emitting substrate, the packaging layer comprising a plurality of sub-packaging layers (14) that are stacked, and the recessed areas comprising openings of the plurality of sub-packaging layers; and a micro-lens array (13), located on the side of the packing layer facing away from the light-emitting substrate, the micro-lens array comprising a plurality of micro-lenses (ML), the micro-lenses being located in the recessed areas, and the orthographic projections of the micro-lenses on the light-emitting substrate at least partially overlapping the sub-light-emitting areas so as to change the propagation direction of at least part of emitted light of the sub-light-emitting areas.
Owner:BOE TECHNOLOGY GROUP CO LTD +2

Long depth-of-field integrated imaging display, long depth-of-field integrated imaging method and long depth-of-field integrated imaging system

The invention provides a long-depth-of-field integrated imaging display, a long-depth-of-field integrated imaging method and a long-depth-of-field integrated imaging system. The long-depth-of-field integrated imaging display comprises an image processor, a display, a microlens array and a quartic phase mask, the pupil position of each micro lens of the micro lens array is correspondingly integrated with a quartic phase mask; the image processor is used for acquiring a to-be-displayed image and constructing an element image array; performing inverse convolution processing on each element image in the element image array based on a preset phase mask function, and constructing a preprocessed element image array matrix; performing negative value processing on the preprocessed element image array matrix to obtain a preprocessed element image array; and the display is used for displaying the preprocessed element image array, so that the preprocessed element image array generates a long depth-of-field image through the micro-lens array and the quartic phase mask. According to the invention, defocus blurring is effectively suppressed without introducing an extra complex optical structure, a long depth-of-field image is generated on the premise of ensuring the image contrast, and the integrated imaging display quality is improved.
Owner:SUN YAT SEN UNIV

Two-dimensional optical fiber collimator array and optical communication system

The invention relates to a two-dimensional optical fiber collimator array and an optical communication system, the two-dimensional optical fiber collimator array comprises an optical fiber array, a plurality of optical fibers form a two-dimensional matrix, and the end face of the optical fiber array is subjected to one-time grinding and polishing treatment; the glass flat sheet is positioned behind the grinding and polishing end surface of the optical fiber array and is fixedly connected with the optical fiber array; the plano-convex lens array is composed of a plurality of plano-convex lenses, each plano-convex lens corresponds to one optical fiber channel in the optical fiber array and is located behind the glass plain sheet, and each plano-convex lens can be independently adjusted. According to the invention, the problems of complex manufacturing process, poor channel consistency, difficulty in system integration adjustment and the like in the traditional single-fiber collimator assembly mode are solved. Through the unique structural design, the manufacturing efficiency and the use reliability are remarkably improved while the optical performance is ensured.
Owner:FUJIAN HITRONICS TECH INC

Lens with optical path difference regulation and control structure

The utility model provides an optical path difference regulation structure lens, and relates to the field of optical lenses, the lens comprises a lens body and a lens part, the lens body comprises a convex surface and a concave surface opposite to each other; the lens part is adjacent to the concave surface of the lens body, the lens part comprises a micro-lens array, and the micro-lens array comprises a plurality of micro-lenses which are sequentially arranged to form an ultra-microstructure area; the micro lens is of a nanoscale diffraction structure and has the effective haze not exceeding 15% so as to reduce the spatial frequency and the imaging degree of incident light in the ultra-microstructure area. According to the invention, multiple functions of defocus optimization design, contrast control, spatial frequency modulation and the like are integrated; the effective defocusing amount of the ultrastructure is larger, and the ultra-low disturbance amount is achieved; and the haze of the micro lens is controlled at a nano level, so that a high-fidelity optical effect can be provided.
Owner:南通诺瞳奕目医疗科技有限公司 +1

Apparatus and Method for Light Field Microscopy

A device for light field microscopy, comprising: a two-dimensionally spatially resolving detector for detecting light radiated by a sample; a detection beam path having at least one microscope objective lens; and at least one multi-lens array for imaging the light radiated by the sample onto the detector, wherein the multi-lens array is arranged in a plane which is optically conjugated with respect to a rear focal plane of the microscope objective lens, or in the vicinity of such a plane; and a control and evaluation unit for activating the detector and for evaluating the measurement data from the detector. The device also includes an adjustable relay optical system in order to image the rear focal plane of the microscope objective lens into the plane in which the multi-lens array is arranged, or in the vicinity of this plane. A method for light field microscopy is also provided.
Owner:CARL ZEISS MICROSCOPY GMBH

Microlens array multi-point alignment focusing method, storage medium and electronic equipment

The invention provides a micro-lens array multi-point alignment focusing method, a storage medium and electronic equipment, and relates to the technical field of lens array detection. According to the algorithm, three unit lens point positions which are far away from each other on an actual array lens sample piece are selected as reference input points, after reference coordinates and actual coordinates are obtained, a vector length scaling coefficient, xy-direction offset and a rotation angle are calculated in sequence, then a conversion matrix is obtained through plane fitting, and the conversion matrix is calculated. And finally, accurate alignment and focusing of any reference point and an actual product point in the xyz three directions are realized. The method does not need to consider the rotation direction and the deviation angle of sample placement, is high in adjacent point test positioning and movement completion speed, has the characteristics of high precision, simplicity in implementation, low cost and the like, and effectively solves the problems of low lens positioning and focusing efficiency, insufficient precision, complex calculation and the like of a traditional micro lens array unit. The micro-lens array is suitable for various application scenes depending on the micro-lens array, such as optical sensing, 3D imaging and the like.
Owner:CHONGQING FUNA TECH CO LTD

Dispersion coherent imaging spectrometer with one-dimensional ultra-wide field of view and ultra-high spectral resolution

The invention discloses a one-dimensional ultra-wide field-of-view ultra-high spectral resolution dispersion coherent imaging spectrometer, which belongs to the technical field of spectral imaging, and comprises a first microlens array used for obtaining incident light of a one-dimensional ultra-wide field-of-view in a horizontal plane; the plurality of optical fibers are used for transmitting incident light of a one-dimensional ultra-wide field of view; the second micro lens array is used for collimating incident light from each optical fiber into broadband parallel light beams; the grating beam splitter interferometer is used for dispersing the broadband parallel light beams into a plurality of narrow-band parallel light beams with different propagation directions; the cylindrical lens is used for converging the two paths of coherent light of each narrow-band parallel light beam to a target block of the detector, and converging the narrow-band parallel light beams with different propagation directions to different target blocks respectively; and the detector is used for obtaining a continuous broadband ultra-high resolution spectrum according to the two paths of coherent light received by each target block. According to the invention, a one-dimensional ultra-wide field of view is obtained in a horizontal plane, and ultra-high spectral resolution can be obtained.
Owner:XIDIAN UNIV

Virtual reality display method and system, computer and storage medium

The invention provides a virtual reality display method and system, a computer and a storage medium. The method comprises the following steps: collecting sight movement data and head movement data of a user; predicting a fixation point area at the next moment based on the historical movement track of the fixation point area; according to the scene depth information, the sight line moving speed and the head motion data of the fixation point area at the next moment, predicting the predicted focal plane depth at the next moment, and dynamically adjusting the configuration of the micro-lens array in the optical assembly to match the predicted focal plane depth. The depth of a focal plane is predicted through fusion data of eye movement tracking and an inertial measurement unit, the configuration of a micro-lens array is dynamically adjusted, meanwhile, a display picture is divided into a fixation point area, a fuzzy display area and an atmosphere rendering area, and based on differentiation rendering processing, the convergence adjustment conflicts of vision are remarkably relieved, the graphic calculation load is reduced, and the display quality is improved. And a self-adaptive high-definition display effect is realized.
Owner:南昌理工学院

Devices, systems and / or methods for myopia control

PendingCN121187015ASpectales/gogglesOptical partsUses eyeglassesEyeglass lenses
The present disclosure relates to devices, systems and / or methods for myopia control. The present disclosure generally relates to a lens that provides a stop signal for myopia on a substantial portion of the spectacle lens being used by a viewer. The present disclosure relates to devices, methods and / or systems for applying a stop signal for eye development using ophthalmic lenses in combination with microlens arrays. The present disclosure also relates to devices, methods and / or systems for modifying incident light through spectacle lenses that utilize color cues to slow down the rate of myopia progression. The present disclosure relates to devices, methods and / or systems for applying a stop signal for eye development using spectacle lenses in combination with refractive and / or diffractive optical elements that provide conflicting or opposition optical signals at wavelengths between 510 nm and 610 nm.
Owner:BRIEN HOLDEN VISION INST (AU)

Ultra-wide-band ultra-wide-field-of-view high-spectral-resolution real-time imaging spectrometer

The invention, which belongs to the technical field of spectral imaging, discloses an ultra-wide-band ultra-wide-field-of-view high-spectral-resolution real-time imaging spectrometer comprising a first micro-lens array, a plurality of optical fibers, a plurality of second micro-lens arrays and a plurality of assemblies. First micro lenses in each column of the first micro lens array are arranged on a vertical plane arc, and micro lenses in each row are arranged on a horizontal plane straight line, so that incident light of a one-dimensional ultra-wide view field is obtained in real time; through optical fiber coupling, incident light is transmitted to the second micro lens array to be collimated into parallel light beams; according to the components, light of different wavebands is processed through the optical filter, the plane transmission grating and the detector, first-order diffraction light beams of different wavelengths in the different wavebands are received by the detector after diffraction, and space information and spectral information are obtained in real time according to an irradiated target block. The imaging spectrometer provided by the invention has the advantages of ultra-wide wave band, ultra-wide field of view, high spectral resolution, real-time measurement, compact structure and high stability, and is suitable for a remote sensing photoelectric reconnaissance detection system.
Owner:XIDIAN UNIV

Autostereoscopic display with improved lenticular resolution

An autostereoscopic display includes a light-emitting panel and a lenticular array in which a focal length of a lenticular lens is different from its thickness. For an intersection of a given row of light-emitting cells and a given lenticular lens, a given viewing direction from a given eye toward said intersection is determined. From light-emitting cells arranged on the given row and on whose optical path the given lenticular lens lies, a set of light-emitting cells whose light travels toward the given eye is determined. Corresponding regions on a curved surface of the given lenticular lens through which light from individual light-emitting cells of the set pass toward the given eye are identified and mapped to respective pixel locations in an image to be presented. Pixel values of pixels located at these pixel locations in the image are retrieved and used to generate an output image for display.
Owner:DISTANCE TECHNOLOGIES OY

Laser synchronous transmission system and method based on rotary motion mechanism and application

The invention discloses a laser synchronous transmission system and method based on a rotary motion mechanism and application, and belongs to the technical field of laser wireless energy transmission. The system comprises a static end and a rotary end of which the geometric centers are located on the same rotation axis; the static end is provided with a multimode optical fiber used for transmitting laser energy and a transmitting end single-mode optical fiber used for transmitting laser signals, the transmitting end single-mode optical fiber is provided with a transmitting end optical fiber collimator group, and the output of the multimode optical fiber is sequentially connected with a square optical fiber array and a lens array; the rotating end is provided with a laser cell panel for receiving laser energy, a receiving end optical fiber collimator for receiving laser signals and a receiving end single-mode optical fiber; and the square optical fiber array is connected to the transmitting end optical fiber collimator group. According to the invention, the stability and anti-interference performance of energy and signal cooperative transmission in the rotating mechanism are improved, the processing and assembling difficulty is reduced, the reliability of the system in a complex environment is improved, and long-term stable cooperative operation of higher-power laser and high-speed communication is supported.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Method and system for realizing automatic identification of skeleton points of digital human

The invention relates to the field of human body measurement automation, and discloses an automatic skeleton point recognition method and system for a digital human, and the method comprises the steps: firstly recognizing an RGB lens array corresponding to the digital human in a target scene, collecting an omnibearing image, and carrying out the three-dimensional reconstruction to generate image point cloud data; then noise points are detected, filtering parameters are analyzed, noise is reduced, and an optimized point cloud model is constructed; then multi-angle human body images are collected, and joint points are recognized to generate two-dimensional skeleton data; then determining a mapping relation of the two-dimensional skeleton in a three-dimensional space, converting the two-dimensional skeleton into a three-dimensional joint coordinate set, positioning an attitude registration point of the SMPL model and matching a skeleton topological structure; and finally, determining a size measurement value based on the topological structure, and generating an automatic identification result after calibration. According to the invention, the recognition accuracy, efficiency and automation degree of the digital human skeleton points can be improved.
Owner:YOUYOU TECH CO LTD

Laser ablation device

ActiveCN224023661USurgical instrument detailsPhotoablationMedicine
The utility model provides a laser ablation device which comprises a first laser light source used for emitting treatment laser; the optical splitter is arranged at the output end of the first laser light source and is used for splitting the treatment laser into multiple paths of split laser; wherein the branch lasers are arranged in rows and columns; the optical modulator is arranged at the output end of the optical splitter and is used for performing independent power regulation and control on each branch laser; the optical fiber coupler is arranged at the output end of the optical modulator and is used for coupling the branch lasers into the optical fiber branches of the optical fiber array one by one; the optical fiber array is connected between the optical fiber coupler and the focusing micro-lens array, and each optical fiber branch corresponds to one focusing micro-lens of the focusing micro-lens array; and the focusing microlens array is used for focusing the split laser onto the diseased tissue in space through focusing microlenses for ablation treatment. The technical scheme can be used for ablation treatment of various irregular pathological tissues, and damage to surrounding healthy tissues is avoided.
Owner:GUANGDONG INST OF LASER PLASMA ACCELERATOR TECH

LD area array beam shaping and homogenizing system based on micro-lens array and use method of LD area array beam shaping and homogenizing system

The invention relates to an LD area array beam shaping and homogenizing system based on a microlens array and a use method thereof. The system comprises an LD area array light source, a fast axis pre-correction unit, a two-dimensional shaping and homogenizing unit, a relay lens group and an output coupling unit which are sequentially arranged along a light path, the fast axis pre-correction unit is a single-row micro-cylindrical lens array composed of a plurality of micro-cylindrical lenses; the two-dimensional shaping and homogenizing unit comprises a first microlens array and a second microlens array which are sequentially arranged along the optical axis, and the first microlens array and the second microlens array are both positive spherical microlens arrays arranged in an N * N matrix. According to the LD area array light beam shaping and homogenizing system, light beam segmentation and superposition are achieved, eventually homogenization of output light spots is achieved, and the light spot uniformity reaches 90% or above.
Owner:Shandong Huaguang Optoelectronics Co. Ltd.

Manufacturing techniques for microlens array structures

PendingUS20250311450A1EngineeringMicro lens array
A process for manufacturing microlens arrays includes the following steps. A preform for a microlens array is created. The preform includes an array of first dome shapes corresponding to microlenses in the microlens array. The domes shapes may be different in size and / or shape than the final microlenses to account for subsequent manufacturing steps. Atomic layer deposition is used to deposit a conformal layer on the array of first dome shapes to create an array of second dome shapes. This can be used as a master form for manufacturing the microlens array. For example, the shape of the master may be transferred to a stamp, and the stamp pressed into lens material to create the microlens array.
Owner:TECTUS CORP

Flexible waveguide coupling structure for high-density optical engine and miniaturized packaging method of flexible waveguide coupling structure

PendingCN121028299ACoupling light guidesOptical waveguide light guidePolymer optical waveguideRefractive index
According to the flexible waveguide coupling structure for the high-density optical engine and the miniaturized packaging method of the flexible waveguide coupling structure, the polymer optical waveguide is adopted, the waveguide core layer is made of the high-refractive-index material, and the refractive index of the core layer is higher than that of the upper cladding and the lower cladding, so that light beams can reflect light rays on the surface or in the core layer; the light beam is limited in the core layer to be transmitted along the set path; the flexible waveguide is used in high-density optical engine packaging, a traditional ribbon optical fiber array is directly replaced, and the contradiction between space limitation and bending radius is solved; comprising a flexible waveguide, an MT / MPO connector and a microlens array, polymers such as PMMA, BCB, SU-8, FPPE, PSQ, PDMS / M-PDMS and the like are selected as flexible waveguide materials, the thickness is smaller than or equal to 0.2 mm, the bendable radius is smaller than or equal to 2 mm, the core / cladding refractive index difference delta n is larger than or equal to 0.01, the multimode numerical aperture NA is approximately equal to 0.3, the transmission loss in a 850 nm window is smaller than or equal to 0.25 dB / cm, the angle of a coupling end face is 40-50 degrees, and the requirements for low loss and high bandwidth of short-distance parallel optical interconnection are met.
Owner:JIANGSU ALLRAY

Photoelectric co-packaging glass substrate, processing technology thereof and photoelectric co-packaging module

The invention belongs to the technical field of semiconductor packaging and optical communication, and particularly relates to a photoelectric co-packaging glass substrate, a processing technology of the photoelectric co-packaging glass substrate and a photoelectric co-packaging module. A photoelectric co-packaging glass substrate comprises: a glass substrate; at least one electrical interconnection via penetrating the glass substrate; the at least one rewiring layer is arranged on the surface of the glass substrate and is electrically connected with the electrical interconnection through hole, and the electrical interconnection through hole and the rewiring layer form an electrical interconnection structure for vertical transmission and horizontal wiring of electrical signals; the at least one optical waveguide channel is embedded in the glass substrate; the optical path steering groove structure is arranged in the glass substrate and is connected with the optical waveguide channel; the micro-lens array is arranged on the upper surface of the glass substrate, each micro-lens corresponds to one optical signal port of the optical waveguide channel in the spatial position, and the micro-lens array is configured to couple divergent beams perpendicular to the surface of the glass substrate to the optical waveguide channel.
Owner:SHENZHEN UNIV

System and method for generating flattop homogenization pump light spot for transient absorption spectrum

The invention relates to the technical field of ultrafast laser spectrum technology and precision optical design, in particular to a flat-topped homogenization pumping light spot generation system and method for transient absorption spectrum, and the system sequentially comprises a micro lens array, a field lens, a soft-edge diaphragm, a spatial filter and a focusing lens along the light path propagation direction. After incident irregular pump light is homogenized by the micro-lens array and collimated by the field lens, soft edge cutting is carried out by the soft edge diaphragm, and a circular flat-topped light spot is output; residual periodic intensity noise in the light field is filtered through a spatial filter formed by a confocal lens group and a pinhole diaphragm; and finally, a flat-topped light spot which is highly uniform in energy density, free of internal modulation and smooth in edge is obtained and is focused to a sample. According to the invention, the problem that the light spot shape, uniformity, edge smoothness and internal noise are difficult to consider at the same time in the prior art is solved, and the spatial overlapping quality of the pump light and the probe light and the signal-to-noise ratio of transient absorption spectrum measurement are remarkably improved.
Owner:ANHUI UNIV

Lens with optical path difference regulation and control structure

ActiveCN223650855UOptical partsLensOphthalmologyEntire lens
The utility model provides an optical path difference regulation and control structure lens, and relates to the field of optical lenses, and the optical path difference regulation and control structure lens comprises a substrate and a lens part. The substrate provides a connecting surface which is sunken towards the inner side of the substrate; the lens part is adjacent to the connecting surface of the substrate, the lens part comprises a central area and an ultrastructure area located on the outer side of the central area, and the ultrastructure area comprises a lens array composed of a plurality of microlenses which are different in size and have different focuses; the outer contour of the central area is composed of a plurality of sections, and the size of each micro lens is in positive correlation with the distance from the corresponding section, so that the size change of the micro lenses corresponds to the shape of the outer contour of the central area. In the breadth of the ultrastructure area, the optical path difference regulation corresponds to the specific form of the central area and further corresponds to the specific human eye cell distribution characteristics, so that the optical path difference regulation effect of the whole lens part can accurately meet the myopia correction requirements of specific people.
Owner:南通诺瞳奕目医疗科技有限公司

Switchable micro-lens array for augmented reality and mixed reality

A see-through near eye display, which can be modulated in such a manner to synchronize with electronic enabled micro-lenses of a switchable micro-lens array, wherein when pixels of the near eye display are lit the micro-lenses of the micro-lens array are present; thus, a virtual image can be formed and seen by the eye of a user. When the see-through near eye display is not lit, the micro-lenses are not present, thus permitting a real image to be present.
Owner:E VISION SMART OPTICS INC

Micro-lens array focal length detection method and detection equipment based on image moving fitting method

The invention discloses a micro-lens array focal length detection method and detection equipment based on an image moving fitting method, and the method comprises the steps: setting a camera, adjusting the camera until the camera is focused on a micro-lens array, adjusting the optical axis distance between the camera and the array in a floating manner, and collecting star point light spot images and Perot plate line-to-plate images at a plurality of adjusted positions; according to the light spot sub-images corresponding to the same sub-lens in the plurality of light spot images, focal plane coordinates are determined, and corresponding PSF reconstruction is carried out; selecting a pair of light plate images and line-to-plate images, and performing recovery processing on sub-images corresponding to the sub-lenses in the images by using a Wiener filtering algorithm; performing convolution operation on the restored image and the reconstructed PSF function to obtain a reconstructed line-to-board image corresponding to the focal plane coordinates; and the focal length of the sub-lens is calculated according to the focal length of the collimator, the actual line distance of the Perot plate and the line distance determined by the reconstruction line to the plate image. Array images near the focus are collected in an image moving mode, and the focal lengths of the multiple sub-lenses are detected in parallel.
Owner:SUZHOU UNIV

Optical filter of optical sensor and forming method thereof

PendingCN120769579ARefractive indexEngineering
An optical filter for an optical sensor and a method of forming the same are disclosed, on one hand, by sequentially forming a plurality of filters on a substrate having an optoelectronic element, forming a hard mask on the plurality of filters that is patterned according to element configuration and filter adjoining unstable regions, etching back separation, and forming a plurality of optical filters on the substrate by etching back separation. A critical portion of an adjacent filter is removed to achieve high-precision and ideal reconfiguration of a pattern. The present invention has the advantage of being able to improve optical performance by filling the reconfigured gap with an optical member capable of imparting anti-crosstalk and light-focusing effects, etc. On the other hand, after the low-refractive-index grid structure is formed, an upper cover layer is more easily formed on the surface of the flat substrate, invasion of impurities brought by the next process can be prevented, and meanwhile the upper cover layer can serve as a barrier layer of a subsequent micro-lens array so as to improve the forming quality of micro-lenses.
Owner:GALAXYCORE SHANGHAI

High-resolution standardized microarray fly's-eye lens module and light field regulation and control system

The invention discloses a high-resolution standardized microarray compound eye lens module and a light field regulation and control system, particularly relates to the technical field of light field regulation and control, and realizes high-precision standardized definition of key parameters of a microlens unit and optical axis micro-angle deviation calibration through a microlens array standardized module. A standardized micro-lens array is used for completing efficient acquisition of multi-view and multi-focus high-resolution light field data of a target three-dimensional scene, and non-consistent temperature control focus drift information and visual axis offset accumulation out-of-control information between micro-arrays are synchronously captured in real time; a light field reconstruction imbalance risk assessment model is cooperatively constructed based on a non-uniform temperature control focus drift coefficient and a visual axis offset accumulation out-of-control coefficient between microarrays, a light field reconstruction imbalance risk assessment index is output in real time, quantitative assessment and dynamic early warning of the imbalance risk degree in the light field reconstruction process are achieved, and an intelligent decision basis is provided for reconstruction regulation and control.
Owner:AQUETI CHINA TECH INC CO