876 results about "Optic lens" patented technology

The invention discloses an optical lens coating defect detection method based on image detection, and relates to the technical field of image processing, and the method comprises the steps: collecting a multi-illumination multi-band reflection image of a lens, carrying out dark white field and distortion correction to form a correction image, carrying out the segmentation and pose solving of the correction image, then carrying out the curved surface expansion remapping, and carrying out the image processing. A reflection observation sequence is formed according to channel stacking, a judgment threshold value is calculated based on the white field image and the dark field image, and pixel positions meeting the judgment threshold value are marked as low credibility and converged to generate a quality mask; coating reflection representation fitting is carried out on the reflection observation sequence, binary weighting is carried out according to a quality mask, range and continuity checking is carried out on a fitting result to obtain a credible mark, and an ideal reflection response is synthesized according to the credible mark. According to the method, ideal reflection response and residual error construction are performed on the reflection observation sequence, so that separation characterization of imaging disturbance and real coating abnormality is realized.

The invention relates to an optical lens mounting device and method, and belongs to the technical field of optical system assembly.The device comprises two lens bracket supporting and adjusting assemblies and lens supporting and adjusting assemblies, the two lens bracket supporting and adjusting assemblies are used for supporting the bottom and the top of a lens bracket respectively, and the lens supporting and adjusting assemblies are used for supporting the lens bracket. The heights of the positions of the bottom and the top of the spectacle frame are respectively adjusted; the lens supporting and adjusting assemblies are used for supporting the optical lens and adjusting the height of the position where the optical lens is located, the lens supporting and adjusting assemblies are located between the two lens frame supporting and adjusting assemblies, and the distance between the lens supporting and adjusting assemblies is adjustable, and the technical problems that in the prior art, operation safety is low, assembling precision is poor, efficiency is low and the mirror surface pollution risk is high can be solved.

The invention relates to the technical field of protective film preparation, and particularly discloses an antistatic silica gel protective film and a preparation method thereof.The protective film comprises a base material layer and an antistatic coating coated on the surface of the base material layer; the base material layer is prepared from methyl vinyl silicone rubber, modified fumed silica, a compound antistatic agent A and a vulcanizing agent, and the antistatic coating is prepared from a compound antistatic agent B and water-based acrylic resin. The preparation method comprises the following steps: banburying, calendering and vulcanizing a compound antistatic agent A, methyl vinyl silicone rubber and modified fumed silica to form the base material layer; and finally, mixing the compound antistatic agent B with water-based acrylic resin to prepare an antistatic coating solution, coating the surface of the base material layer with the antistatic coating solution, and drying and curing to obtain a finished product. The silica gel protective film prepared by the invention has excellent antistatic property, mechanical property, adhesive force and high light transmittance, and is suitable for the fields of electronic equipment screens, optical lenses and the like.

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 relates to the technical field of lens positioning, and particularly discloses multi-station optical lens centering equipment which comprises a rack, a base arranged on the rack and a laser positioning system. An annular base and a driving assembly are arranged on the base, at least three elastic telescopic pieces are evenly distributed on the annular base, the driving assembly is used for driving the elastic telescopic pieces to slide in the radial direction of the annular base, reset springs are installed between the elastic telescopic pieces and the annular base, and a containing table is arranged at the end of each elastic telescopic piece. A connecting piece is connected between the placing table and the elastic telescopic piece; the laser positioning system comprises an optical detection device and a positioning device, the positioning device comprises a lifting part and a pressing ring hinged to the bottom of the lifting part, the bottom of the pressing ring is provided with an insertion block matched with the insertion groove, and the upper top surface of the placement table is provided with an inclined block matched with the pressing ring; according to the invention, the X-axis and the Y-axis of the lens can be quickly positioned, and the Z-axis can be positioned.

The invention belongs to the technical field of optical lens detection, and relates to a lens detection method and device, computer equipment and a storage medium, and the method comprises the steps: detecting a lens based on a plurality of detection points of the lens, and obtaining a plurality of spectral images; acquiring position information of each detection point, acquiring a standard image according to the position information, matching the standard image with the spectral image, and determining defect information of the lens; predicting the performance of the lens according to the spectral image and the defect information, and determining performance prediction data of the lens; and generating a detection report of the lens according to the performance prediction data. The production efficiency and the product yield are improved, and the detection efficiency of the detection process is improved.

The invention discloses an optical lens coating film defect detection method and system, and relates to the technical field of image processing, and the method comprises the steps: obtaining an image of a coating film surface under the irradiation of a standard light source, and carrying out the preprocessing, and obtaining the coordinate and gray value of each pixel point on a gray-scale image; based on the coordinates and the gray values of all the pixel points, calculating a defect-free background gray estimated value and a local deviation degree of each pixel point on the gray-scale map; calculating a local abnormal fluctuation level of a neighborhood of each pixel point based on the local deviation degree of the pixel points, and generating an illumination invariance threshold value of each pixel point; improving and calculating an LBP feature value of each pixel point based on an illumination invariance threshold; and determining a self-adaptive abnormal threshold based on the LBP feature value of the pixel point, and identifying an abnormal region based on the self-adaptive abnormal threshold to obtain the position and area of the defect. According to the method, the problem that defect features are difficult to accurately extract on the surface of the high-reflection coating can be solved, and coating defects can be accurately recognized.

The invention relates to the technical field of lens detection, and discloses an optical lens detection method and system, and the method comprises the steps: collecting a front illumination light image and a back illumination light image of a to-be-detected lens, carrying out the gray normalization, calculating the local gradient magnitude of each pixel, carrying out the pixel-level weighted subtraction of the two normalized images, and generating a differential fusion image; extracting a preliminary contour of the lens, constructing a Gaussian mixture model for the radial gradient sequence of each point on the preliminary contour, and screening contour points to fit to obtain a final lens edge; segmenting candidate defect areas, calculating the distance between the center of each candidate defect area and the optical center of the lens, and determining the radial position weight; for each candidate defect area, calculating an initial severity score, and weighting the initial severity score by using a radial position weight to obtain a risk score; and accumulating all the risk scores, and when the total score is greater than a preset threshold value, determining that the to-be-detected lens is an unqualified product. The accuracy of the quality detection result of the optical lens is improved.

Appearance detection equipment for optical lens production relates to the technical field of optical lens detection and comprises a rack, a PLC is installed on the side face of the rack, a detection table is rotationally connected to a base of the rack through a rotating shaft, and a driving mechanism for driving the rotating shaft to rotate is installed on the base of the rack. Placing grooves are uniformly formed in the detection table, a receiving source and a light transmittance measuring instrument are installed at the positions, corresponding to the placing grooves, of the rack, the receiving source and the light transmittance measuring instrument are correspondingly arranged up and down, a position adjusting mechanism is installed at the top of the rack, and an optical lens taking and placing unit is installed on the adjusting part of the position adjusting mechanism; according to the appearance detection equipment for optical lens production, feeding and discharging of optical lenses are convenient, the trouble of manual operation is avoided, time and labor are saved, and therefore the detection efficiency is improved.

The invention belongs to the technical field of optical thin film design and preparation, and particularly relates to a preparation method of a multilayer composite antireflection film on the surface of an optical lens. The preparation method comprises the step of sequentially performing atomic layer deposition on the surface of the optical lens to form the transition layer, the high-refractive-index layer, the low-refractive-index layer, the high-refractive-index layer and the packaging layer. According to the atomic layer deposition method, uniform coating can be achieved on the surfaces of aspherical lenses with different curvature radiuses, and five layers of oxide films are deposited through alternating pulse in an ALD pulse sequence with the structure of'substrate layer-transition layer-high refractive index layer-low refractive index layer-high refractive index layer-packaging layer '. And an excellent antireflection effect in a visible light wavelength range is realized. The atomic layer deposition is carried out at low temperature (25-150 DEG C), so that the atomic layer deposition can be directly coated on the high-molecular polymer lens, and the deformation of the base material due to high temperature is avoided; the method is especially suitable for different application scenes such as consumer electronics, personal protection and medical assistance.

The invention discloses an optical lens online appearance flaw detection device, and relates to the technical field of lens appearance detection, the optical lens online appearance flaw detection device comprises a workbench, the workbench is provided with a cleaning module and a detection module, the cleaning module is used for cleaning the surface of a lens, and the detection module is used for carrying out appearance detection on the cleaned lens; the cleaning module comprises a clamping assembly, a wetting assembly and a wiping assembly, and the clamping assembly is used for clamping and driving a lens to rotate along the axis of the lens during cleaning; the wetting assembly and the wiping assembly are correspondingly located above the clamping assembly, the wetting assembly is used for wetting the circumferential outer wall of the lens through cleaning liquid, and the wiping assembly is used for conducting pressurized wiping on the circumferential outer wall of the lens. The method has the effect of improving the accuracy of the appearance detection result of the optical lens.

The invention relates to the technical field of monitoring, and particularly discloses an external laser power closed-loop monitoring system and method for high-power galvanometer welding, and the system comprises an optical lens installation shell, and a reflector installation shell and an acquisition module installation shell which are respectively installed at the two ends of the optical lens installation shell. The light splitting and sampling module comprises a primary reflector which is obliquely mounted in the reflector mounting shell, a light inlet is formed in one side of the reflector mounting shell, and a light outlet is formed in the other side of the reflector mounting shell; the secondary reflecting mirror is obliquely mounted in the reflecting mirror mounting shell, is positioned on one side, far away from the light inlet, of the primary reflecting mirror, and is used for reflecting laser transmitted by the primary reflecting mirror; the integrated driving acquisition module is positioned in the laser reflecting direction of the secondary reflecting mirror and is used for acquiring a laser power signal; a laser sample is acquired through the light splitting sampling module, and the integrated driving acquisition module acquires a power signal. The method has the effects of improving the monitoring precision and the response speed.

The invention discloses a partitioned scattering optical lens for myopia control and a design method of the partitioned scattering optical lens, which are applied to the technical field of optics, and aims to solve the problem that the central visual quality and the peripheral myopia control effect cannot be considered at the same time in the prior art, the optical lens comprises a central optical region, a peripheral optical region and a smooth transition zone, the central optical area is low in scattering coefficient and high in MTF, a high modulation transfer function and low scattering loss are achieved, the peripheral optical area is high in scattering coefficient and low in MTF, the central optical area is used for inducing peripheral myopic defocus, the smooth transition area is used for achieving continuous gradual change of the scattering coefficient, visual sudden change is avoided, and visual comfort is ensured. The design method comprises the steps of eye parameter acquisition, optical performance target definition, microstructure design and simulation optimization, through the scheme, effective decoupling of central vision and peripheral myopia control is achieved, high-definition vision is ensured, myopia progress is restrained, and wearing comfort is improved.

The invention relates to the technical field of intelligent design of optical lenses, and discloses a multi-series superposed complex periodic structure arrangement method and system.The method comprises the steps of normalized coordinate transformation, multiple sine wave superposition, an iterative function system, a Julia set algorithm, an LSystem grammar system, parameter adjustment, moire fringe fusion and the like; and a complex periodic structure with high complexity, adaptability resistance and natural morphological characteristics is generated. Advanced technologies such as logarithm uniform distribution wave number generation, a chaos game algorithm, linear mapping complex number conversion, a turn graph interpreter, multi-scale entropy complexity quantification and an Otsu automatic threshold method are adopted, and accurate parameterization control and manufacturing adaptation are achieved. The system comprises a coordinate transformation module, a wave interference calculation module, a fractal generation module, a complex power system module, an LSystem processing module, a parameter control module and a contour surface extraction module. According to the invention, a systematic solution can be provided for complex structure design of optical devices such as myopia prevention and control lenses.

The invention discloses an optical lens imaging system and an optical lens defect detection method, and relates to the field of optical lens detection.The system comprises a conveying belt, a large-face transmission imaging module, a large-face reflection imaging module, a small-face reflection imaging module, a small-face transmission imaging module and a control module, and different types of light sources are arranged at four detection points respectively. Multi-angle imaging is carried out from the upper direction and the lower direction of a lens, a grating modulation technology is adopted for parallel light transmission point positions, the internal defect display effect is enhanced through differential processing, and the detection method comprises the steps that preprocessing such as segmentation, difference, enhancement and registration is carried out on six images; constructing a multi-branch feature extraction network, and adopting a priori guided feature fusion mechanism; constructing a defect detector comprising classification, positioning and quantification; according to the invention, comprehensive detection of defects on the surface and inside of the lens is realized, the sensitivity is high, the efficiency is high, the structure is compact, and the method is suitable for industrial mass production.

An optical face protection shield is provided having a support body, an optic lens, and an elongate heater. The support body has a user interface. The optic lens is carried by the support body over a user's face configured to protect a user. The elongate heater is carried by the optic lens so as to traverse an expansive surface area of the optic lens. The elongate heater has an elongate resistive heating element and an outer thermally transmissive, peak temperature mitigating, and an electrically insulative cover material encompassing the resistive heating element. A method is also provided.

The utility model provides a kind of optical lens polishing workstation, it includes workstation body, workstation body includes the mounting plate of horizontal arrangement, a pair of riser plate is fixedly connected with making it stand on ground in mounting plate, polishing groove is also fixedly connected on mounting plate, polishing groove is the hemispherical structure of opening upwards and inner bottom center is fixedly connected with vertical cylinder, the bottom of polishing groove is also fixedly connected with the liquid discharge pipe that is connected with its inside and outside;It further includes connecting shaft, connecting shaft is arranged in vertical cylinder from rotation, and the lower end of connecting shaft extends to below polishing groove, the upper end of connecting shaft extends to above vertical cylinder and the upper end end of connecting shaft is also fixedly sleeved with balance cover, balance cover is also rotatably sleeved in the upper end outside of vertical cylinder, and one of riser plate is equipped with the drive motor of driving connecting shaft rotation.This utility model solves the problem that the impurity in polishing waste liquid in prior art can cause jam and affect normal polishing operation.

The utility model relates to the technical field of optical lens processing, and discloses a telescope lens gluing and pressurizing device which comprises a moving block, the moving block is slidably arranged on a transverse screw rod in a threaded mode, and a pressurizing assembly comprises a hemispherical block, a two-way screw rod, a pressurizing plate, an arc-shaped frame and a pressurizing frame. The two-way screw rod is rotatably arranged on the mounting box, the two pressurizing plates are installed at the upper end and the lower end of the two-way screw rod in a threaded mode respectively, the four arc-shaped frames are slidably arranged at the four corners of the pressurizing frame respectively, and the pressurizing frame is fixedly arranged at the bottom of the pressurizing plate on the upper side; the bidirectional lead screw drives the hemispherical block and the pressurizing frame to move relatively at the same time, the part, exposed on the top surface of the mounting box, of the hemispherical block is used for supporting lenses with different curvatures, the pressurizing frame is matched with the arc-shaped frame to fit and press the curvature of the top surface of the lens, errors caused by insufficient edge pressure are avoided, and the lenses are glued more tightly.

The invention discloses AR glasses, and relates to the technical field of AR glasses, and the AR glasses comprise an optical machine module, an optical lens, and an antenna. The optical lens at least comprises a first area and a second area different from the first area; light emitted by the ray machine module enters the optical lens in the first area; the projection of the antenna on the optical lens is located in the second area; the antenna comprises a metal area, a bonding pad area and a feed coaxial line. The metal area is provided with a gap formed by slotting, and the feed end of the gap is electrically connected to the bonding pad area; at least part of the feed coaxial line is located in the bonding pad area and connected with the feed end, so that the feed end connected with the feed coaxial line enters an open circuit state, namely, the feed coaxial line is directly used as a feed line of the gap, a conventional coupling mode is avoided, the miniaturization design of the bonding pad area is achieved, and the size of the antenna is reduced. Therefore, the bonding pad area, the light machine module and the camera module can be hidden in the glasses frame together, so that the miniaturization requirement of AR glasses is met.

The utility model relates to a kind of lens and infrared thermal imager, including lens main body, optical lens and laser ranging module, the lens main body has first accommodating cavity, the optical lens is arranged in first accommodating cavity, at least one edge of the optical lens is provided with linear cutout, the linear cutout of the optical lens and the inner wall of the first accommodating cavity are enclosed into accommodating groove, the laser ranging module is partially or wholly arranged in accommodating groove.The utility model not only can reduce the loss of optical lens in energy under the function of ensuring integrated laser ranging module, and increase the reliability of optical lens.

The application provides a kind of hot vacuum equipment cable storage device, including fixing device, connecting device and storage hook;The fixing device includes first clamping plate and second clamping plate;The connecting device includes ball head mounting seat, ball head clamp seat, ball head adjusting rod;The ball head mounting seat is fixedly arranged on the first clamping plate or second clamping plate;The ball head clamp seat is rotatably connected with the ball head mounting seat;The ball head adjusting rod is connected with the ball head clamp seat at one end, and is connected with the storage hook at the other end.Solve the current hot vacuum environment scene, using ordinary nylon cable ties, metal clamp or plastic wire clamp, resulting in material outgassing pollution optical lens or sensitive device, cold welding and jamming, high and low temperature cycle causes material expansion and contraction, resulting in cable is not firm and angle adjustment difficult, difficult to adapt to complex wiring path;Storage is inconvenient, cable disassembly lacks temporary fixing point, easy to scatter or damaged and other technical problems to be improved.

The invention relates to the technical field of surfactants, in particular to an anti-fog combined liquid for an optical lens and a preparation method and application thereof. The antifogging combined liquid is prepared from the following raw materials in percentage by mass: 0.1%-3% of a fluorine-containing surfactant, 0.01%-0.5% of a silicon-containing surfactant, 0.5%-3% of cation modified phosphate, 20%-60% of a solvent and the balance of deionized water. The antifogging combination liquid provided by the invention is applied to an antifogging wiping wet tissue for lenses, has an excellent antifogging effect, can be uniformly spread, is not obvious in left marks, and is suitable for coated high-end optical lenses.

A method for determining a local spatial contrast obtained with an optical lens to be placed in front of at least a portion of an eye, for example implemented by a computer device, where the method comprises:-obtaining an eye model representing the eye, obtaining an optical lens model representing an optical lens to be placed in front of at least a portion of the eye, determining a point spread function based on a system of eye models associated with the optical lens model, convolving the plurality of images with the determined point spread function to obtain a blurred version of the image, -determining a local spatial contrast in the blurred version of the image.

The utility model discloses an air floating platform for optical lens detection, and belongs to the technical field of precision optical detection and air floating supporting, the air floating platform comprises a base, an air floating platform substrate is arranged above the base, a plurality of groups of air floating holes are formed in the air floating platform substrate, and pressure sensing valves are arranged in the plurality of groups of air floating holes; laser interferometer adjusting mechanisms are arranged on the periphery of the air floating platform base plate, the four laser interferometer adjusting mechanisms are slidably connected with the periphery of the air floating platform base plate, a honeycomb matrix air cushion array is arranged in the base, four supporting adjusting mechanisms are arranged at the bottom of the base, and each supporting adjusting mechanism comprises a supporting frame. A threaded rotating shaft is rotationally connected into the supporting frame. When the device is used, the overall balance of the base can be better adjusted when the device is used or after the position of the device is changed, other tools are not needed during adjustment, the overall balance is accurate through the thread adjustment mode, and the practicability of the device is improved.

The utility model provides a kind of optical lens edge grinding machine based on cross laser centering, it includes base, laser emitter, polishing bin, horizontal clamping piece, vertical clamping piece and cross module, the polishing bin is fixedly installed in the other side of the base top and is used to the laser emitter corresponding, and polishing piece is equipped in the polishing bin, the horizontal clamping piece is installed in the two sides of the polishing bin and is used to clamping alignment after auxiliary light ray lens, the side of the horizontal clamping piece is connected with the laser emitter, the vertical clamping piece is located in the base side and is vertically distributed with the laser emitter, the vertical clamping piece extends to the polishing bin and is used to clamp lens to be processed. The utility model is by using the vertical clamping piece that can be clamped lens in vertical direction to replace manual holding lens and carry out the mode of alignment with auxiliary light ray, to improve lens alignment accuracy technical effect in this way.

The utility model discloses an optical lens polishing detection device which comprises a mounting seat, the lower end of the inner side of the mounting seat is fixedly connected with a placing seat, the upper surface of the placing seat is provided with a setting groove, the inner side of the setting groove is fixedly connected with tempered glass, a reflecting lens is arranged below the setting groove, and the reflecting lens is fixedly connected with the placing seat. And the reflecting lens is fixedly connected with the lower surface of the inner side of the mounting base, the upper surface of the setting groove is fixedly connected with a clamping mechanism, and the top surface of the setting groove is provided with a clamping block. According to the above structure, the clamping mechanism, the clamping blocks and the optical microscope are matched with each other, so that the clamping mechanism drives the clamping blocks to move synchronously and oppositely, an optical lens is clamped at multiple angles, the optical lens is clamped through the clamping blocks, and the clamping efficiency of the optical lens is improved. Therefore, the problem that the optical lens is separated and damaged when the optical lens is detected by the optical microscope is greatly reduced.

This invention relates to the field of injection molding equipment, and discloses a waste recycling structure and an injection molding equipment for optical lenses. The key technical points are: an injection molding equipment for optical lenses, comprising: an injection platform with a lower mold on the platform and an upper mold above the lower mold; the lower mold having multiple mold openings a, and the upper mold having multiple mold openings b; and an injection box located at the bottom of the injection platform, with cavities a and b formed within the injection box, the latter used to store the melt. This invention has advantages such as strong structural linkage, high degassing efficiency, and stable molding quality. By setting up cavity b, a turntable, and degassing components, the centrifugal force generated by the rotation of the turntable actively removes air bubbles from the melt, significantly improving the purity of the raw materials and solving the problems of low passive venting efficiency and the tendency of residual air bubbles to form refractive defects in traditional molds.

The utility model discloses an optical lens gluing device which comprises a working box, switching mechanisms are symmetrically arranged in the working box, a suction cup is arranged on one side of each switching mechanism, a first electric-hydraulic push rod is arranged between the switching mechanism located on the upper portion and the suction cup, and a cleaning mechanism is arranged on the left side of the bottom face of an inner cavity of the working box. The left side of the cleaning mechanism communicates with an energy supply mechanism, the energy supply mechanism is arranged on the left side of the working box, a dispensing unit is arranged on the rear side of the bottom face of an inner cavity of the working box, and the arranged multiple structures such as the switching mechanism, the cleaning mechanism, the energy supply mechanism and the dispensing unit are matched in an assisted mode; according to the gluing device for the optical lenses, feeding, dust removal, dispensing, gluing and discharging can be sequentially conducted on the optical lenses, so that the dispensing operation is streamlined, the optical lenses are well pre-cleaned before dispensing, and the gluing quality of the multiple optical lenses is greatly improved.

The invention discloses an anti-blue-light anti-yellowing lens and a vacuum coating process thereof, belongs to the technical field of optical lens manufacturing, and aims to solve the problems of fixed anti-blue-light rate, short anti-yellowing service life, non-environment-friendly process and poor film stability in the prior art. The process core comprises substrate pretreatment, air plasma activation, adhesion promotion layer deposition, dynamic blue light prevention layer deposition, MXene / MOF composite anti-yellowing layer deposition and post-treatment. The lens structurally comprises a base material, a plasma activation layer, a SiO2-ZrO2 adhesive force layer, a ZrO2-Al2O3-Y2O3-azobenzene dynamic blue light prevention layer and a Ti < 3 > C < 2 > T < X >-UiO-66 anti-yellowing layer from inside to outside. According to the invention, the barrier rate of 415-455nm blue light is dynamically adjusted; the air plasma replaces high-purity gas, the gas cost is reduced by 60%, carbon emission is reduced by 40%, and the air plasma is suitable for PC, CR-39 and glass substrates, can be widely applied to daily goggles, myopia glasses and other scenes and has remarkable technical and industrialization values.

The utility model provides an optical lens and an electronic device, the optical lens comprises at least four optical lenses, and the at least four optical lenses comprise a first optical lens, a second optical lens, a third optical lens and a fourth optical lens from the object side to the image side of the optical lens. The at least four optical lenses include a blue glass lens. Therefore, by adding the blue glass material in the optical lens, a blue glass plate is omitted to prevent visible light from being reflected to the photosensitive element, petal-shaped solar flares are reduced, and the imaging quality is improved.