950 results about "Micro lens array" patented technology

The invention provides a transmitting-receiving coaxial laser radar optical system, and relates to the technical field of laser radars. The optical system comprises a transmitting assembly, a polarization splitting prism, a quarter-wave plate, a common beam expanding lens group, a micro-lens array, a common lens and a receiving assembly which are arranged in sequence. Laser emitted by the emitting assembly enters the polarization splitting prism, and at the moment, a light beam is linearly polarized light, can pass through the polarization splitting prism and then pass through the quarter-wave plate to reach the shared beam expanding lens group to be collimated and expanded, and finally is emitted for illumination through the micro-lens array and the shared lens; the emergent laser beam is irradiated to an object to return an optical signal, and the returned optical signal is returned to the polarization splitting prism along an original optical path and is reflected into the receiving assembly to be received and processed; according to the invention, the beam splitter prism, the beam expander group and the micro lens array are shared, and the shared lenses are the same and share the lens group, so that the purpose of saving the manufacturing cost of the laser radar is achieved; the method is suitable for automobile automatic driving, distance detection and the like.

The embodiment of the invention provides an optical detection device which comprises an imaging assembly and a photoelectric detection device, and the imaging assembly is used for forming an image on an image plane of a to-be-detected area of a wafer. And the photoelectric detection device is used for receiving images and is arranged at the image plane. The photoelectric detection device comprises a light beam separation assembly and a sensor assembly, the light beam separation assembly is used for dividing a continuous first light signal in an image into multiple beams of second light signals, and the light beam separation assembly comprises a microlens array. The sensor assembly is used for receiving multiple beams of second optical signals, and each pixel unit of each sensor in the sensor assembly is used for receiving one beam of second optical signal in the multiple beams of second optical signals. The sensor assembly comprises a single-pixel sensor, and the single-pixel sensor corresponds to one micro lens in the micro lens array; and / or, the sensor assembly comprises a multi-pixel sensor, the multi-pixel sensor corresponds to a plurality of microlenses in the microlens array, and spatial segmentation is beneficial to improving the signal-to-noise ratio.

The invention is suitable for the field of imaging, and discloses a micro lens array zoom module zoom method and an imaging system, and the method comprises the steps: obtaining a mapping relation table between a deviation objective lens working distance and a micro lens array state of a micro lens array zoom module; acquiring a laser spot image formed by irradiating the to-be-measured object with laser, and calculating the position of the to-be-measured object to the focal plane of the objective lens; determining an adjustment reference distance of the micro-lens array zoom module based on the position from the object to be measured to the focal plane of the objective lens, and comparing the adjustment reference distance with the mapping relation table to determine the micro-lens array state of the micro-lens array zoom module; and on the basis of the determined state of the microlens array, a focusing instruction is generated so as to realize automatic zooming of the microlens array zooming module, automatic zooming of the microlens array zooming module is realized, and the method has the advantages of extremely high focusing speed and high precision.

The invention discloses a high-refractive-index nano-composite optical adhesive and a preparation method thereof, and belongs to the technical field of optical transparent adhesives. The optical adhesive is prepared by taking a polyurethane acrylate oligomer with a specific structure as matrix resin, introducing surface-modified barium titanate and zirconium oxide core-shell nanoparticles as a functional filler, and matching with an active diluent, a photoinitiator and a silane coupling agent in a specific proportion. Through the design of the core-shell structure, the core problems that the high-refractive-index nanoparticles are easy to agglomerate in an organic resin matrix, the dispersion stability is poor and the bonding force with a matrix interface is weak are effectively solved. The prepared optical adhesive has a refractive index of more than 1.65, a light transmittance of more than 99% and a haze of less than 0.3% after being cured, has excellent bonding strength, weather resistance and long-term use stability, and is especially suitable for precise lamination of high-end display devices (such as OLEDs (Organic Light Emitting Diodes) and micro-lens arrays).

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.

The invention provides an optical cross system based on silicon-based liquid crystal and a control method, and relates to the field of optical elements, and the optical cross system comprises an optical fiber array, a micro lens array, a collimating lens, a polarization conversion module, a dispersion element, a focus lens group and a liquid crystal spatial light modulator. Optical signals are coupled through the micro-lens array, a divergence angle is compressed, and parallel light beams are formed through the double-agglutination collimating lens; the polarization conversion module separates the light beam into P / S polarized light and unifies the polarization state; the dispersion element separates light beams according to wavelength space, and the focus lens group forms an elliptical Gaussian light spot on the liquid crystal spatial light modulator; the liquid crystal spatial light modulator divides a light spot into a plurality of independent control areas in the long-axis direction, and single-wavelength multi-port output, power proportion regulation and control and monitoring signal extraction are achieved by dynamically modulating the reflection phase of each area. The control method comprises the steps of optical path processing, regionalized phase modulation and real-time monitoring feedback. According to the invention, flexible routing, power balance and lossless monitoring of wavelength channels can be realized.

The invention belongs to the technical field of LED display screens, and particularly relates to an LED display module and a display screen. The LED display module comprises a substrate, a plurality of LED light-emitting chips arranged on the substrate, transparent packaging layers arranged among the LED light-emitting chips and on the upper surfaces of the LED light-emitting chips, a black light-transmitting adhesive film layer arranged on the transparent packaging layers, and a micro-lens array layer arranged on the black light-transmitting adhesive film layer. The micro lens array layer comprises a micro lens array base layer and a micro lens array arranged on the micro lens array base layer. Compared with the prior art, the surface of the LED display module provided by the invention is the micro-lens array layer which is of the curved surface structure, so that the internal total reflection phenomenon when light is emitted into air from the module packaging structure can be effectively reduced, and the light emitting efficiency is improved, so that the ink color consistency can be effectively improved through the black light-transmitting adhesive film layer; and the light emitting efficiency can be improved through the compound eye micro lens array, and the brightness is improved under the condition that the power of the module is not increased.

The invention relates to the technical field of target distance detection and 3D scanning reconstruction, and discloses a coaxial scanning type ultra-long distance detection laser radar system, which comprises a laser light source module, which adopts a 1550nm optical fiber laser to output high-power laser, and ensures sufficient laser energy and human eye safety; according to the invention, by adopting the high-power 1550nm fiber laser, the ultra-long distance detection is realized on the premise of ensuring the safety of human eyes, and the detection range of more than 10km can be reached, so that the limitation that the detection distance of the traditional laser radar is only 500m is broken; according to the invention, by selecting the 1550nm laser device which is safer to human eyes and greatly improving the laser power to kilowatt and even myriawatt levels, stronger echo signals are realized, so that the detection signal-to-noise ratio is remarkably improved; the micro-lens array is adopted to replace a traditional DOE diffractive optical element, efficient beam shaping of a one-dimensional or two-dimensional dot matrix is achieved through flexible regulation and control of the curvature radius and the distance of the micro-lenses, meanwhile, the manufacturing cost is reduced, and the design freedom degree is expanded.

The invention discloses a Micro-LED light extraction structure, which relates to the field of photoelectricity and comprises first glass for bearing the light extraction structure, a photoresist curing film layer which is arranged on the first surface of the first glass structure and is imprinted and cured by a PDMS template, and a micro lens array arranged on the second surface of the first glass structure, and the surface of the micro-lens array is matched with the PDMS template to be subjected to surface roughening through a nanoimprint process. Meanwhile, the invention further discloses a preparation method of the Micro-LED light extraction structure. According to the invention, a set of PDMS template is adopted to respectively carry out roughening treatment on the glass surface and impressing transfer roughening treatment on the lens surface, so that the light emitting rate is improved, and the light extraction rate of the whole Micro-LED is effectively improved.

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.

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.

The invention relates to the technical field of precision and ultra-precision machining, and discloses a CO2 full-laser machining device and method for a fused quartz micro convex lens array. The three-axis motion platform is arranged on the supporting platform; the pulse CO2 laser is used for generating a processing laser beam; the light beam transmission system sequentially comprises a light beam combining module, a light beam adjusting module, a light splitting module, a light beam guiding module, a scanning galvanometer and a focusing field lens along a laser beam path; the main light beam is guided to the scanning galvanometer through the light beam guiding module and is emitted to a fused quartz workpiece after being focused through the focusing field lens; the contour detection unit is used for taking morphology data of the micro-lens array in situ; the temperature monitoring unit is used for measuring the temperature of the processing area; the control unit is connected with the three-axis motion platform, the contour detection unit, the temperature monitoring unit and the pulse CO2 laser, and is used for adjusting the laser power and the displacement of the three-axis motion platform according to detection data; the device has the characteristics of high efficiency, high precision, non-contact processing and small heat influence.

The invention discloses an all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device. The all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device comprises a micro-lens array module, a liquid crystal phase modulation module, a polarization wire grating array module and an image sensor module. The micro lens array module is composed of a plurality of micro lenses which are arranged in a two-dimensional mode, and incident light is focused on the photodiode of each pixel. The liquid crystal phase modulation module is composed of two high-speed liquid crystal variable phase delayers, and active phase modulation is carried out on the polarization state of incident light. Polarized light information in four polarization directions can be obtained only through single shooting in the polarization wire grating array module. The image sensor module calculates the full Stokes parametric polarization characteristics of the incident light. According to the invention, full-polarization information measurement of incident light can be realized only through single exposure, and a polarization enhancement mode is switched after measurement is completed, so that the imaging efficiency of the sensor in dark light scenes such as weak contrast target detection is greatly improved.

Disclosed is a linear array scanning Brillouin scattering elastic imaging device. In the device, a signal generating system consists of a narrow linewidth continuous wave laser, a half-wave plate, a beam expander, a Y-direction scanning galvanometer, a microlens array, a pinhole array filter, a first plano-convex lens, a polarization beam splitter, a quarter-wave plate and a microscope objective. A signal receiving system consists of a microscope objective, a quarter-wave plate, a polarization beam splitter and an eight-channel optical collimator array. Each channel of an eight-channel spectrometer consists of an optical collimator, a convex lens, a scanning Fabry-Perot interferometer, a photomultiplier tube and an eight-channel photon collection card.

The invention belongs to the technical field of eye vision optics, and relates to a microstructure optical imaging element design method and a microstructure optical imaging element, and the method comprises the steps: building a microstructure lens three-dimensional model under different rise variations based on the structure parameters of a mother lens and the structure parameters of a negative microlens array under different rise variations; acquiring modulation transfer function curves of the optical system containing the three-dimensional models of the microstructural lenses and spatial frequencies of first minimum value points on the modulation transfer function curves; fitting the spatial frequencies of all the first minimum value points and the corresponding rise variations to obtain a relation equation of the spatial frequencies of the minimum value points and the rise variations; based on the relation equation of the spatial frequency of the minimum value point and the rise variation, the spatial frequency limit value when the imaging contrast of the microstructure lens is lower than the preset minimum contrast when the rise variation is infinite is obtained, so that the threshold value range of the rise variation is obtained, and a theoretical basis is provided for the design of the microstructure lens based on negative refractive power.

A light source a backplane including drive circuits formed thereon, an array of micro-light emitting diodes (micro-LEDs) bonded to the backplane, and an array of micro-lenses on the array of micro-LEDs. Each micro-LED of the array of micro-LEDs includes a mesa structure that includes a p-doped semiconductor layer, an n-doped semiconductor layer, an active region between the p-doped semiconductor layer and the n-doped semiconductor layer, and a dielectric layer underneath the p-doped semiconductor layer or the n-doped semiconductor layer and surrounding the active region. In some embodiments, the center of the active region of a micro-LED of the array of micro-LEDs is horizontally offset from the center of the mesa structure of the micro-LED and the center of a corresponding micro-lens of the array of micro-lenses.

A hyperspectral imaging system is characterized by comprising an imaging unit, an optical fiber scanning device, an optical fiber spectrometer, a data processing unit and a control unit, the imaging unit comprises an imaging lens and a micro-lens array, the imaging lens images a target object onto the micro-lens array, the optical fiber scanning device scans an optical signal processed by the imaging unit, and the optical fiber spectrometer performs spectrum separation on light with different wavelengths in the scanned optical signal to form spectrum data; and the data processing unit processes the spectral data and reconstructs a hyperspectral image of the target object by using the spectral data. And only an important area is scanned point by point in an optical fiber scanning mode, and hyperspectral data acquisition of a local interested target is concerned, so that unnecessary overhead of full-frame data acquisition is greatly reduced. For an application scene needing quick or real-time monitoring, the directional scanning mode greatly shortens the required integral acquisition time, and reduces the overall time delay of the system.

The invention provides a visual inspection method for precision metal part processing, which comprises the following steps: collecting dynamic light field data of the surface of a metal part through a micro lens array, obtaining an original light field data set containing multi-angle and multi-depth information, and forming a full light field data set; carrying out signal conversion and integration by adopting a high-resolution sensor from the full-light-field data set to generate two-dimensional light-field image data with high spatial resolution, and forming a preliminary light-field image; for the preliminary light field image, extracting multi-depth plane feature points, separating light field data of different depth layers by applying a depth segmentation algorithm based on region growth, and generating a layered depth data set; and calculating quantitative indexes of spatial resolution and data processing precision from the fusion of the full-focal-depth image, and comparing the quantitative indexes with a preset standard value based on detection requirements to generate an imaging quality judgment result. The invention further provides a device adopting the visual detection method.

The invention discloses a metal mold surface microlens array out-of-plane matrix cutting machining method, and belongs to the field of microlens array machining methods.The metal mold surface microlens array out-of-plane matrix cutting machining method comprises the following steps that S1, microlens array units are arranged into a matrix, and matrix recombination is conducted; s2, formulating a four-color grouping strategy; s3, performing out-of-plane cutting control according to the four-color grouping strategy formulated in S2; and S4, the machining efficiency and precision are balanced by adjusting the radial distance, the circumferential included angle and the rotating speed of a main shaft of the cutting device. According to the metal mold surface microlens array out-of-plane matrix cutting machining method, the operation method is simple, massive calculation is not needed, adjacent microlens units are distributed to different machining groups through a matrix recombination and four-color grouping strategy, and it is ensured that unit spaces in the same group are not adjacent; in combination with out-of-plane cutting control, that is, the depth of the cutter exceeds the designed vector height, interference of a cutter path on the edge is eliminated from space and depth double dimensions, and the edge overcut problem is thoroughly solved.

The invention relates to the technical field of electroluminescent light sources, and provides a self-adaptive LED illumination regulation and control method based on multi-modal environment perception, which comprises the following steps: acquiring multi-modal environment perception data, user feedback data, blue light risk level and user physiological rhythm data; performing space-time alignment on the multi-modal environment sensing data and the user feedback data, performing data enhancement, and extracting a fusion feature vector in an enhanced data set; performing dynamic weighting on the fused feature vector, generating an initial illumination parameter in combination with the weighted feature vector and the user physiological rhythm data, and performing energy-saving optimization on the initial illumination parameter to obtain a target illumination parameter; mapping the target illumination parameter into a pulse width modulation parameter, and determining the phase delay of the micro-lens array according to the personnel distribution characteristics in the fusion characteristics; driving constant-current circuit data according to the pulse width modulation parameters, performing micro-lens beam deflection according to the phase delay of the micro-lens array, and adjusting the optical filter according to the blue light risk level.

The invention provides a microlens array turning motion trail optimization method and device and a medium, and relates to the technical field of microlens array turning motion trail optimizing.The method comprises the steps that a continuous trail curve P (u) is constructed based on discrete tool path points corresponding to the microlens array turning process; dispersing the P (u) into a plurality of track points in a parameter domain to obtain a track point list G; sequentially determining the forward maximum feasible parameter speed of each track point from the forward first track point; starting from the first reverse track point, determining the reverse maximum feasible parameter speed of each track point in sequence; determining the target maximum feasible parameter speed of the corresponding track point; according to the target maximum feasible parameter speed of each track point in the G, generating an optimal track which corresponds to the P (u) and meets kinematics constraints; according to the method, the optimization process of the parameter speed can be simplified, the number of trial and error iterations is reduced, the calculation complexity is reduced, and the calculation efficiency of trajectory optimization is remarkably improved.

The invention provides 2D / 3D fusion display equipment, a 2D / 3D fusion display method and a 2D / 3D fusion display device, and relates to the technical field of display. The 2D / 3D fusion display equipment comprises a first display panel, a second display panel, a third display panel and a fourth display panel, the first display panel is composed of a self-luminous display device, and the self-luminous display device comprises a MicroLED; the second display panel is located on the light emitting side of the first display panel and is composed of a liquid crystal display device; the micro-lens array layer is coupled to the first surface of the light emitting side of the first display panel and is formed by arranging a plurality of micro-lenses; wherein the first display panel is divided into a plurality of control subareas, each control subarea comprises a preset number of self-luminous display devices, and each control subarea is covered by a corresponding micro lens in the micro lens array layer. According to the invention, accurate and continuous two-dimensional and three-dimensional fusion display can be realized while high resolution of two-dimensional display and space information and display brightness of three-dimensional display are maintained.

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.

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.

The invention provides a light field three-dimensional reconstruction method and system based on a microlens array and polarization modulation, and a medium, and the method comprises the steps: carrying out the polarization coding of light rays at different angles at an exposure moment based on a polarization modulator, and obtaining different polarized light information; focusing light to an imaging surface based on an imaging lens, and recording view images of different polarized light information based on a micro-lens array; based on the polarization characteristics of the view angle image, view angle decoding is carried out on the view angle image based on the polarization characteristics, and light field images of multiple view angles are obtained; preprocessing the light field images of the multiple visual angles to obtain preprocessed images of the multiple visual angles; analyzing the light intensity distribution information based on the preprocessed image to obtain light field data, and reconstructing the light field image based on a reflective projection algorithm to obtain a reconstructed image; multi-view image capturing is achieved through multi-state polarization coding, light intensity analysis is conducted on multi-view light field images, three-dimensional reconstruction of a high-speed dynamic scene is achieved, and the image reconstruction precision is improved.

The invention relates to a self-adaptive optical matrix calculation acceleration method based on an ARM framework, and belongs to the field of self-adaptive optical wavefront correction technology and embedded parallel calculation. The method comprises the following steps: analyzing a mathematical mapping relationship between a microlens array and wavefront phase distribution in a Hartmann sensor image, and constructing a wavefront matrix operation model based on an ARM multi-core architecture; designing a Hartmann image data rearrangement strategy, dividing a single-frame Hartmann image into multiple task calculation units, and realizing parallelization processing of wavefront slope calculation; a wavefront matrix operation kernel is optimized according to ARM NEON instruction set characteristics, and vectorization calculation of multi-channel wavefront reconstruction is realized by adopting an SIMD parallelization technology; and computing resource allocation is coordinated through a dynamic thread scheduling algorithm, and the task allocation proportion among multiple cores is adjusted according to the real-time load condition. According to the method, the wavefront calculation efficiency is remarkably improved, so that the overall bandwidth of the adaptive optical system is greatly improved.

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.

The invention discloses an LED dimming system and method, and the system comprises a white light LED which is used for emitting a spectrum in a 400-650 nm wave band; at least three red light LEDs of blue light excitation fluorescent powder respectively emit red light with different central wavelengths, the central wavelength of the first red light LED is 660nm + / -2nm, the half-peak width is less than or equal to 15nm, and an I < n > GaA < l > P material vertical cavity surface emission structure is adopted; the central wavelength of the second red light LED is 730nm + / -3nm, the half-peak width is less than or equal to 20nm, and the second red light LED adopts an A < l > GaAs material quantum well structure; the center wavelength of the third red light LED is 780nm + / -5nm, the half-peak width is less than or equal to 25nm, and a GaAsP material gradient refractive index waveguide structure is adopted; the driving control module comprises three independent constant-current driving units which are used for respectively controlling the current and PWM duty ratio of each red light LED; the optical mixing module is composed of a two-stage integral rod and a micro lens array and is used for realizing uniform mixing of spectrums.

The present application relates to the technical field of optical lenses, and discloses a peripheral defocus control lens and a manufacturing method. The peripheral defocus control lens comprises: a substrate, a microlens array, and a freeform surface. The substrate is a main area of the lens and has a spherical surface shape. The microlens array is arranged on the outer side of the substrate and is used for providing myopic defocus. The freeform surface is distributed on the inner side of the substrate and is used for compensating for or screening out refractive deviations in peripheral refraction of human eyes.

The invention discloses a high-flux zebra fish behavior analysis device and method, and aims to solve the problem of compatibility of plate edge distortion and a multi-type pore plate, a telescopic mechanism is arranged in a shell of the device, an isolation cavity is formed in the shell when the telescopic mechanism is retracted, a micro-lens array and a light filter plate are sequentially arranged in the isolation cavity from top to bottom, and the micro-lens array and the light filter plate are arranged in the shell. A stimulation module is arranged at the bottom of the light filter plate, a pore plate placement area is arranged between the stimulation module and the light filter plate, and a universal adaptive bracket for accommodating a standard pore plate and a non-standard pore plate is arranged in the pore plate placement area; a camera module comprising at least one high-frame-rate camera with a fixed focal length is correspondingly arranged above the porous plate placing area, the camera module is connected with a control and analysis module, distortionless track diagrams, heat diagrams and behavior parameters are output online, and the optical mechanical integrated distortion correction and porous plate combined universal adaptation structure is used for correcting the distortion of the porous plate. When the same set of light path is switched between standard plates and non-standard plates of different models, the distortion of the edge view field is automatically compensated.