2660 results about "Optic lens" patented technology

The invention discloses an online monitoring method and system for the light transmittance of an optical lens, and relates to the technical field of precise optical detection. The objective of the invention is to solve the problem of large light transmittance calculation error caused by halo scattering noise interference, low optical path calibration precision of a complex curved lens, a measurement blind area of a large-aperture lens and environmental disturbance of a high-reflection / high-light-transmittance lens in the prior art. According to the scheme, a three-dimensional curved surface model is constructed based on Gray code structured light projection and ICP registration, a dynamic partition scanning instruction set is generated through an improved genetic algorithm, and multi-wavelength polarized light is driven to scan and collect multi-dimensional data; specular reflection and scattering noise are suppressed by combining an improved Stokes vector algorithm and an attention mechanism U-Net network, and the data precision of the complex curved surface is improved by adopting Bayesian optimization and Zernike polynomial weighted fusion; constructing a double-loop coupling optimization architecture to realize closed-loop adaptive optimization; according to the invention, the anti-interference capability, the complex lens adaptability and the full-aperture detection precision are obviously improved.

The invention relates to an optical adjusting mechanism, in particular to a multi-dimensional optical lens posture adjusting frame. The objective of the invention is to solve the problems of large size, high price and complex installation and debugging processes of the existing optical adjustment mechanism. The device comprises a fixed seat, a transverse movement adjusting plate, a longitudinal movement adjusting plate, a rotary adjusting seat and a vertical supporting plate, wherein the transverse movement adjusting plate is mounted on the fixed seat and can be manually and transversely adjusted; the longitudinal movement adjusting plate is mounted on the transverse movement adjusting plate and can be manually and longitudinally adjusted; the rotary adjusting seat is mounted on the longitudinal movement adjusting plate; the pitching adjusting mirror frame is arranged on the vertical supporting plate; the pitching adjusting ring is connected with the pitching adjusting mirror frame; the rotary adjusting seat can be used for manually adjusting a part connected to the rotary adjusting seat to rotate; the vertical supporting plate can adjust a part connected to the vertical supporting plate to move up and down; the pitching adjusting ring can realize the pitching adjustment of the pitching adjusting mirror frame through manual operation, thereby realizing the multi-dimensional adjustment of the optical lens in a narrow space.

The invention discloses an optical lens force-position collaborative adjustment method based on a neural network, and relates to the technical field of reflective optical lens assembly, and the method comprises the steps: building a reflective optical system lens model, carrying out the circulation simulation, and outputting a lens simulation result; sorting lens simulation results, constructing an assembly force-assembly error data set, constructing an assembly error prediction model, and training and storing the assembly force-assembly error data set to obtain a target assembly error prediction model; detecting the Zernike coefficient of the current lens, calculating to obtain the target misalignment amount of the lens, and taking the assembly force combination applied by the current lens as the input of the target neural network model to obtain the assembly pose error of the current lens; and compensating the assembly pose error on the basis of the target misalignment amount to obtain an actual adjustment amount, and completing the force-position cooperative control of the reflective optical system. According to the invention, the automation degree of the installation and adjustment process is improved and the lens installation and adjustment precision is improved by adopting the optical lens force-position collaborative installation and adjustment method based on the neural network.

The invention relates to the technical field of lens polishing, in particular to a polishing device for optical lens production. Comprising a workbench, the workbench is provided with two driving arms which are distributed up and down, and the driving arms are fixedly connected with polishing discs; and the rotating disc is rotationally connected to the workbench, the rotating disc is slidably connected with a plurality of clamping rods distributed in the circumferential direction, a second motor is installed on the workbench, and the rotating disc and an output shaft of the second motor are in transmission through a second transmission piece. According to the lens polishing device, lenses of different sizes are clamped through the clamping rods distributed in the circumferential direction, the existing mode that the lenses are fixed through glue is changed, the two polishing discs are used for polishing the upper sides and the lower sides of the lenses at the same time, the lens polishing efficiency is improved, and meanwhile the phenomenon that after one face of each lens is polished, glue residues exist on the other face is avoided; therefore, the precision of the lens in use is influenced.

The invention relates to the technical field of optical elements, and discloses a fog display point diffusion optical system and a preparation method thereof, and the preparation method comprises the steps: obtaining user visual parameters, and building a visual behavior probability density model through kernel density estimation; designing the front surface of the lens based on the model, and generating an asymmetric defocus system coupled with a gazing habit; the rear surface of the lens is designed, and the distribution density of a fog display point diffusion unit is cooperatively modulated by the front surface defocusing amount, the fixation probability and the pupil diameter; and finally integrating front and rear surface design to form an optical lens body. According to the method, the asymmetric defocus field on the front surface and the fog display point diffusion field on the rear surface are subjected to collaborative design, and the defocus intensity and the contrast modulation intensity are accurately applied to the effective retina area of the user through the visual behavior probability density model; the technical problem that a traditional out-of-focus lens is fixed in signal and cannot adapt to individual staring habits and physiological parameter changes is solved.

The invention relates to the technical field of optical lens clamp spectacle frames, in particular to a three-jaw clamp spectacle frame capable of adjusting load of optical lenses. According to the technical scheme, the miniature three-jaw clamp comprises a miniature three-jaw clamp chuck, the miniature three-jaw clamp chuck comprises a chuck body with a round hole in the middle, three annular and uniform claws are slidably mounted on the end face of the chuck body, and polyurethane gaskets are mounted on the inner sides of the claws. A driving mechanism for driving the three claws to synchronously and radially move is arranged on the chuck body; the lens angle-adjustable lens bracket is used for mounting and supporting the micro three-jaw clamp chuck, the lens bracket comprises a three-jaw clamp fixing plate, and a chuck positioning groove and a chuck positioning hole communicated with the chuck positioning groove are formed in the three-jaw clamp fixing plate. According to the invention, through deep fusion of the self-centering symmetric clamping structure and optical adjustment requirements, a lens fixing solution which is more efficient, more reliable and higher in universality is provided for the field of precision optics.

Optical lens intended to be worn by a wearer An optical lens intended to be worn by a wearer comprising: —a refraction area having a refractive power based on a prescription for said eye of the wearer; —a plurality of optical elements having a transparent optical function of not focusing an image on the retina of the eye of the wearer when the optical lens is worn in standard wearing conditions, —a zone of interest comprising a subset of the optical elements, each optical elements in the subset bearing a cylinder component on its surface, wherein the zone of interest is of at least 50 mm2, and the standard deviation of the orientations of the cylinder axis of each optical element comprised in the zone of interest is smaller than or equal to 15° with respect to a common predefined direction.

The invention discloses efficient cleaning equipment for finished optical glass lenses, and belongs to the technical field of optical lens conveying, the efficient cleaning equipment comprises a centralized heating tank body and a conveying track seat which are arranged on a supporting seat, a detachable tank cover is arranged at the end part of the centralized heating tank body, and the detachable tank cover is connected with a fixed-distance conveying disc through a pushing conveying piece; and a lens sticky glue impurity cleaning unit, a lens rotary deburring unit and a conveying unit are sequentially arranged on the two sides of the conveying track base. The lens slicing device is designed for solving the problem that burrs exist after lenses are sliced, and in the process that the lenses are conveyed one by one through the conveying grooves in the interval type conveying belt, the suction cup type driving pieces arranged on the two sides of the conveying rail base drive the lenses to rotate; and in the rotating process, the original right-angle cutting edge is gradually ground into an inclined surface through the burr trimming piece, so that the burrs on the cutting edge are treated, the quality defect caused by the fact that the burrs enter a mirror surface in the subsequent double-sided grinding process is avoided, and the sheet forming rate of lens processing is remarkably improved.

The invention relates to the field of optical lens coatings, and particularly discloses a preparation method of an antifouling and antibacterial spectacle lens coating. The preparation method of the antifouling and antibacterial spectacle lens coating comprises the following steps: depositing a silicon dioxide substrate on the surface of a lens through plasma enhanced chemical vapor deposition treatment; the preparation method comprises the following steps: dispersing nano-graphene and nano-silver particles in an ethanol solvent, adding a silane coupling agent to form a homogeneous suspension, loading the suspension on the surface of a silicon dioxide substrate through a spin-coating method, and carrying out heat treatment curing to form an antibacterial layer, with the loading amount of nano-silver being less than or equal to 0.5 wt%; and etching the surface of the antibacterial layer by adopting a reactive ion etching method, and then grafting perfluorooctyltriethoxysilane on the etched surface at 80-100 DEG C by adopting a vapor deposition method to form the hydrophobic layer. The preparation method of the antifouling and antibacterial spectacle lens coating has the advantages of being antibacterial, antifouling and high in durability.

The invention belongs to the technical field of optical lens detection, and provides an optical lens surface scratch detection method and system, and the method comprises the following steps: obtaining an image of a lens surface; graying the image of the surface of the lens to obtain a gray-scale image of the lens; acquiring a scratch developing grid according to the lens grey-scale map, and acquiring a shortest developing adjacent distance through the scratch developing grid; obtaining the shortest mark developing distance through the shortest color developing adjacent distance; and real scratch grids are screened out through the shortest developing distance, and the center point of each real scratch grid is connected with the center point of the corresponding grid with the shortest developing adjacent distance to obtain a scratch area. According to the detection method provided by the embodiment of the invention, the random noise in the image can be effectively inhibited, the real gray value of the scratch area is ensured to be accurately reflected, and the scratch detection precision and reliability are improved.

The invention relates to the technical field of lens testing, and discloses a multifunctional optical lens testing lens device which comprises a connecting frame. A casing; a lens body; the positioning assembly is used for fixing the position when the lens body is detected; the detection assembly is used for carrying out multidirectional detection on the lens body; the detection assembly comprises an air pressure detection part, an impact detection part and a vibration detection part; and a driving assembly. According to the multifunctional optical lens testing lens device, multi-direction detection of the lens can be realized through the arranged detection assembly, and multi-direction synchronous detection in vibration, impact, air tightness, waterproofness and high-temperature environments is realized, so that each detection is in a linked state, the detection effect of the lens in different high-complexity environments is improved, and the detection efficiency is improved. And the whole detection process is carried out in one device, and single position conversion is not needed, so that a high-intensity environment is provided for the test of the lens, and the stability of the lens is finally detected.

The invention discloses a high-precision semi-automatic assembling and adjusting method for a laser radar transmitting and receiving module. Each optical element of the MEMS laser radar transmitting and receiving module can be quickly and conveniently assembled and adjusted by using simple measuring equipment such as an optical reticle, an optical guide rail, a semi-transparent and semi-reflecting mirror, an infrared camera and a phase shift interferometer. The installation positions of optical lenses of the transmitting module and the receiving module are detected in real time by using a phase shift interferometer and a computer-aided adjustment method; an optical reticle on an optical guide rail is automatically moved, and an infrared camera is adopted to detect the contour of a light spot, so that the installed and adjusted lens can be accurately adjusted in real time to ensure that the collimation precision of a transmitting module meets the requirement; after the transmit-receive module is installed, the reflection calibration plate on the optical guide rail is moved to calibrate the reflection intensity of the MEMS laser radar transmit-receive module. According to the method, semi-automation of an MEMS laser radar transmitting and receiving module assembling and adjusting process can be realized, and the assembling and adjusting efficiency of the MEMS laser radar is improved while the assembling and adjusting precision of each component is effectively guaranteed.

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.

A lithium battery detection device based on BB optical pump magnetic imaging comprises a magnetic shielding cylinder and a substrate arranged in the magnetic shielding cylinder, and a laser, an optical lens system, an atomic gas chamber system, an array lens and an array photoelectric detector are sequentially arranged on the working face of the substrate from left to right; the atomic gas chamber system contains alkali metal atoms and buffer gas; a non-magnetic objective table for placing a lithium battery to be tested is arranged above the atomic gas chamber; according to the device, the array lens is adopted to split and focus a single beam of detection laser into small light spots which are respectively irradiated on different photoelectric detectors, and magnetic field information of a plurality of space point locations is detected at one time, so that the consistency and imaging quality of a subsystem are improved, and the system cost is saved.

The utility model discloses a material taking and placing tool for optical lens processing, which comprises a workbench, one side of the workbench is provided with a positioning base in a bolting way, the upper part of the positioning base is rotatably provided with a mounting seat, the lower part of the mounting seat is movably provided with a mounting disc, the bottom of the mounting disc is communicated with a sucking disc, and the sucking disc is provided with a clamping groove. And an air pump is bolted at the upper part of the mounting seat corresponding to the sucker. The purposes of air suction and air supply are achieved through work of an arranged air pump according to the use condition of a suction cup, so that the purposes of grabbing and placing the optical lens are better and more accurately achieved, the purpose of discharging during optical lens machining is achieved, meanwhile, the surface of the optical lens is cleaned through a cleaning brush installed at the bottom of a first cleaning base, and the cleaning efficiency is improved. And meanwhile, the mounting base is rotated to enable the position, corresponding to the water supplementing cylinder, of the suction cup to be pressed downwards, the water supplementing cylinder makes contact with the cleaning sponge to complete cleaning work on the suction cup, and the adsorption strength of the suction cup to the optical lens can also be kept.

The utility model discloses a double-groove ultrasonic cleaning device for optical lenses, which belongs to the technical field of optical lens processing, and comprises two cleaning grooves arranged side by side, an ultrasonic vibration plate and an ultrasonic generator, a displacement component is arranged above the cleaning grooves, and a connecting rod is connected onto the displacement component. The connecting rod is connected with a cleaning frame for placing a lens, and the displacement assembly is used for driving the cleaning frame to move up and down and left and right. The cleaning frame can be driven to conduct ultrasonic cleaning operation in the two cleaning tanks, the displacement assembly drives the cleaning frame to meet the requirement for slow pulling dehydration, the labor intensity of workers is reduced, and the lens cleaning efficiency is improved; double-groove ultrasonic cleaning can be conveniently carried out on the optical lens, and the machining requirements of different lenses are met; and the inclined middle plate is arranged between the two cleaning tanks, so that the mixing of solutions in the two cleaning tanks caused by the movement of the cleaning frame is reduced, and the cleaning effect in each tank is ensured.

The invention discloses a coating device for optical lenses, and particularly relates to the technical field of optical lens processing, the coating device comprises a device bottom frame, a coating outer frame is fixedly mounted on one side of the top end of the device bottom frame, an auxiliary outer frame is integrally formed on one side of the coating outer frame, a material placing mechanism is arranged in the middle of the coating outer frame, and an auxiliary mechanism is arranged in the middle of the auxiliary outer frame; the material placing mechanism comprises a mounting top frame, the mounting top frame is fixedly mounted on the inner upper wall of the film coating outer frame, a rotating ring frame is fixedly mounted at the bottom end of the mounting top frame, and a rotating disc is rotationally clamped in the middle of the rotating ring frame. The overall machining efficiency of the optical lenses is improved, the multiple optical lens bodies on the material containing inner frame can be automatically turned over conveniently, the other faces of the optical lens bodies are subjected to film coating machining, and the film coating machining effect and quality of the optical lenses are further improved.

The invention belongs to the technical field of optical lens production, and particularly relates to an optical lens dust removal device which adopts a cleaning mode of combining non-woven fabric and dust-sticking paper, and a non-woven fabric roll has better water absorption and flexibility, so that dust and stains on the surface of a lens can be preliminarily wiped, and hidden dust can be removed. The dust-sticking paper roll can further stick and remove tiny dust left after the non-woven fabric roll wipes the lens, it is ensured that the surface of the lens is highly clean, the spray head sprays cleaning liquid before the non-woven fabric wipes the lens, the cleaning effect is further enhanced, the negative ion fan can neutralize static electricity on the surface of the lens, dust adsorption is reduced, and the service life of the lens is prolonged. Meanwhile, the equipment is matched with a conveying belt, a clamping block and a conveying stand-by device, automatic conveying, cleaning and output of the lenses are achieved, an operator only needs to place the lenses to be dedusted on a placing table, after the equipment is started, the subsequent conveying, cleaning and conveying processes can be automatically completed, and the workload of manual operation is greatly reduced.

The invention belongs to the technical field of optical lenses. The invention relates to a butterfly pupil escape compound eye bionic high-color-gamut nylon sunglass lens which comprises a lens body and a coating. Wherein the lenses are made of nylon resin; the coating is prepared from the following raw materials in parts by weight: 25 to 40 parts of tetraethoxysilane; 10 to 20 parts of phenyl trimethoxy silane; 4.0 to 8.0 parts of dimethyl dimethoxy silane; 2.0 to 4.0 parts of an MOF color enhancing agent; 20 to 30 parts of isopropanol; 11 to 22 parts of deionized water; and 1.0-3.0 parts of glacial acetic acid. A coating is prepared from a self-made MOF color enhancing agent through molecular design through formula optimization design, and the nylon resin lens is coated with the coating, so that the butterfly pupil escape compound eye bionic high-color-gamut nylon sunglasses lens is obtained. The butterfly pupil escape compound eye bionic high-color-gamut nylon sunglass lens effectively solves the problem that the color identification degree is low after the butterfly pupil escape compound eye bionic high-color-gamut nylon sunglass lens is blocked by 45-90% of light rays at present.

The optical lens waste treatment equipment with the safety protection structure comprises a box body, a shielding mechanism for preventing material splashing and feeding is arranged at the top of the box body, and a blocking mechanism for preventing a material splashing machine from guiding materials is arranged at the top of an inner cavity of the box body; a treatment mechanism used for conducting two-stage treatment on optical lens waste is arranged in the box body, and a pressing mechanism used for conducting secondary treatment on treated crushed materials is arranged at the bottom of one side of the box body. Through cooperative arrangement of the shielding mechanism and the blocking mechanism, protection work in the optical lens treatment process is achieved, the safety during treatment is improved, meanwhile, the impact resistance and blocking effects can be achieved, waste splashing is caused in the treatment process, the accidental injury situation is avoided, safety is improved, and the service life of the optical lens is prolonged. The blocking mechanism is used for achieving primary blocking and anti-impact operation, and the shielding mechanism is used for achieving the effect of secondary blocking and material blocking.

The utility model relates to a high-precision transmission sighting window capable of being used in a wide-temperature environment. The high-precision transmission sighting window comprises a lens barrel, an optical lens, an optical lens mounting pressure plate and an outer flange connecting disc, two optical lenses are arranged in the lens barrel in parallel, a nitrogen hollow cavity is formed by the lens barrel and the two optical lenses arranged in parallel, the optical lens installation pressing plate is installed on the peripheries of the optical lenses in a pressing mode, the optical lenses are connected in the lens barrel in a pressing mode, and outer flange connecting discs are coaxially installed on the two sides of the lens barrel. According to the utility model, the optical lens, the nitrogen filled in the nitrogen hollow cavity and the heating tape structure are adopted, so that a stable and high-precision visual sighting window is provided for orientation equipment, and the orientation precision or attitude measurement precision of the orientation equipment is ensured.

The utility model discloses an optical lens coating device which comprises a constant-temperature constant-pressure box, a box door and a coating machine, the box door is rotatably arranged at the left end of the front side of the constant-temperature constant-pressure box, the coating machine is arranged at the top of the inner side of the constant-temperature constant-pressure box, a disc seat is fixedly installed at the bottom of the inner side of the constant-temperature constant-pressure box, and a rotating disc is rotatably installed at the top of the disc seat. The rotating disc is of an annular structure, a gear ring is arranged on the inner side of the rotating disc, the rotating disc is driven by a rotating driving assembly arranged at the bottom of the inner side of the constant-temperature and constant-pressure box to rotate, a fixing rod is arranged in the center of the inner side of the rotating disc, and the bottom of the fixing rod is fixedly connected with the bottom of the inner side of the constant-temperature and constant-pressure box. The device is simple in structure and convenient to operate, can perform double-sided coating on the fixed optical lens, not only improves the coating efficiency of the optical lens, but also can process multiple groups of lenses at one time due to the design of multiple groups of material transferring units, and is suitable for large-scale and high-efficiency optical lens coating production.

The invention relates to the field of optical elements, in particular to a coating method of a high-precision intense laser optical lens. The film coating method comprises the following steps: step 1, substrate pretreatment; step 2, surface activation; 3, a preparation stage; step 4, coating treatment; and step 5, post-processing. According to the method disclosed by the invention, the problems of adhesive force, uniformity, damage resistance and the like of a traditional method in strong laser lens coating are solved through fusion of double-plasma cooperation and a self-adaptive gradient composite coating technology. The method provided by the invention can be used for customized production for different laser scenes, and is suitable for high-end fields such as high-energy laser industry, quantum calculation, infrared imaging and the like.

The invention discloses a polymer resin and a preparation method thereof, an optical lens and intelligent glasses, and relates to the technical field of resin materials. The polymer resin comprises a thioamide group, a thioether group and an aromatic group, and is prepared from the following raw materials: thiocyanate, a sulfhydryl compound, an organic base catalyst and a solvent. The oxidation resistance and the stability of the polymer resin can be improved, and the polymer resin also has high refractive index performance.

The invention discloses a material taking and placing tool for optical lens processing, which comprises a workbench, a positioning base is mounted on one side of the workbench in a bolting manner, a mounting base is rotatably mounted on the upper part of the positioning base, a mounting disc is movably mounted on the lower part of the mounting base, and a suction disc is mounted at the bottom of the mounting disc in a communicating manner; and an air pump is bolted at the upper part of the mounting seat corresponding to the sucker. The purposes of air suction and air supply are achieved through work of an arranged air pump according to the use condition of a suction cup, so that the purposes of grabbing and placing the optical lens are better and more accurately achieved, the purpose of discharging during optical lens machining is achieved, meanwhile, the surface of the optical lens is cleaned through a cleaning brush installed at the bottom of a first cleaning base, and the cleaning efficiency is improved. And meanwhile, the mounting base is rotated to enable the position, corresponding to the water supplementing cylinder, of the suction cup to be pressed downwards, the water supplementing cylinder makes contact with the cleaning sponge to complete cleaning work on the suction cup, and the adsorption strength of the suction cup to the optical lens can also be kept.

The invention relates to the field of myopia prevention and control optical equipment, in particular to an optical lens with high-frequency disturbance information. Comprising a basic surface type area and a high-frequency control area; the center of the basic surface type area coincides with the center of the optical lens, the high-frequency control area is arranged on the peripheral side of the basic surface type area in a surrounding mode and comprises a plurality of high-frequency lens units, the high-frequency lens units are closely and adjacently arranged, and the surface type of each high-frequency lens unit is in at least one direction of the unit radial direction or the unit tangential direction. The surface type structure is provided with at least two height fluctuation periods. The micro-structure surface type in the high-frequency lens unit mainly acts on the retina by high-frequency disturbance, so that the side effect of low-frequency disturbance generated by a traditional spherical lens on the visual effect can be effectively reduced, and the visual quality is guaranteed. Meanwhile, the high-frequency lens unit has at least two height fluctuation periods in at least one direction; and continuously changing dynamic stimulation is provided for the retina, so that the adaptation speed of the retina is slowed down.

The invention belongs to the technical field of three-dimensional scanners, and discloses a camera lens module and a three-dimensional scanning device.The camera lens module comprises an installation support, an optical lens assembly and a camera PCBA board, the installation support comprises a lens installation part and a camera module installation part, and the lens installation part and the camera module installation part are integrally formed and connected; a plurality of lens mounting positions are arranged in a first mounting cavity of the lens mounting part; the optical lens assembly is arranged in the first mounting cavity, the multiple optical lenses correspond to the multiple lens mounting positions one to one, and the lens mounting positions are used for restraining the optical lenses; the camera PCBA board is detachably connected to the camera module installation part. According to the camera lens module, the stability of internal parameters of the camera lens module can be improved, the imaging virtual focus phenomenon is prevented, and the scanning precision of three-dimensional scanning equipment is improved.

A head-mounted device may have lenses. A user may view images through the lenses from eye boxes. The lenses may be tunable liquid lenses. Each lens may have a lens chamber. The lens chamber of the lens may have rigid and / or flexible walls that form optical lens surfaces. Actuators and / or pump and reservoir systems may deform the lens surfaces in response to control signals from a control circuit to tune the lens. Each liquid lens may have oil or other liquid in the lens chamber for that lens. Inorganic dielectric particles or other refractive-index-adjustment particles may be used to adjust the refractive index of the lens. The particles may be subwavelength in size.

The invention discloses a large-view-field compact eyepiece lens for near-to-eye display and a near-to-eye display device. The large-view-field compact eyepiece lens comprises an image source, a first optical lens, a second optical lens, a third optical lens, a fourth optical lens and an optical prism, light is emitted from an image source, sequentially penetrates through the first optical lens and then enters the optical prism, and is refracted and reflected by the interior of the optical prism for multiple times: firstly, the light is reflected back to the optical prism through the second surface of the third optical lens, then is reflected by the second surface of the second optical lens, and finally is output through the optical prism and penetrates through the fourth optical lens to be emitted; the optical prism is compact in structure, optical path folding is achieved, and the length of an optical system is effectively shortened. According to the eyepiece lens, the field angle is 50 degrees, the length of an optical system can be shortened by at least 20%, the imaging definition is high, and the structure is compact.

The present invention relates to the field of optical lens processing, and relates to a fully automatic optical lens inking machine, comprising: a double-track workbench, both sides of which are provided with electric guide rails; a mobile platform, driven by the electric guide rails; a batch execution unit, arranged on the mobile platform; a fixed rotating mechanism, installed in the middle of the double-track workbench; the batch execution unit comprises: electric telescopic rods, distributed on both sides of the mobile platform; a downward pressing inking mechanism, arranged on the movable rod of the electric telescopic rod on one side, to perform inking operations on the material to be processed; a suction cup frame, on which a plurality of suction nozzles are evenly arranged in series, and installed on the movable rod of the electric telescopic rod on the other side. The present invention uses the suction cup frame on the batch execution unit to move the lenses in batches to the fixed rotating mechanism, waits for the fixed rotating mechanism to fix the lenses and correct the center of the lenses, and then uses the downward pressing inking mechanism to ink the edges of the rotating lenses, thereby achieving the effect of batch inking.