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81 results about "Lens materials" patented technology
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Double-lens coupling equipment and double-lens coupling method
The invention provides double-lens coupling equipment and a double-lens coupling method, and belongs to the technical field of laser device production, the double-lens coupling equipment comprises a device tool, a lens tool, two coupling mechanisms and a detection mechanism, the lens tool is provided with two lens material waiting areas at the same time, the two lens material waiting areas can be used for placing a fast-axis collimating lens and a slow-axis collimating lens respectively, and the two lens material waiting areas can be used for placing the fast-axis collimating lens and the slow-axis collimating lens respectively; the two coupling mechanisms are arranged at the same time, coupling of one lens can be conducted through each coupling mechanism, during operation, the two coupling mechanisms conduct coupling of the fast axis collimating mirror and the slow axis collimating mirror respectively, light beam detection is conducted through the detection mechanism, and the coupling precision is ensured. Therefore, the double-lens coupling device can execute coupling of the two lenses at the same time, and the coupling efficiency is improved.
Owner:HUNAN ZHONGNAN HONGSI AUTOMATION TECH CO LTD
Method for separating different polymeric spectacle lens materials in a mixture
PCT designated stageWO2026008152A1Plastic recyclingFunctional group formation/introductionPolymer scienceEyewear
The invention provides a method 100 for separating different polymeric spectacle lens materials in a mixture comprising at least two different polymeric spectacle lens materials by separating at least one polymeric spectacle lens material of the at least two different polymeric spectacle lens materials by using their different physical behavior and / or chemical behavior, wherein the at least two different polymeric spectacle lens materials are selected from the group consisting of polyallyl carbonate, polyurea, polyurethane, polyurethane / polyurea, polycarbonate, polyepisulfide and polythiourethane. The invention further provides a method for separating at least one polythiourethane from a mixture comprising at least two different polythiourethanes by thiolysis.
Owner:CARL ZEISS VISION INTERNATIONAL GMBH
Preparation method and structure of waveguide side micro lens
The invention provides a preparation method and a structure of a waveguide side micro lens. The preparation method comprises the following steps: providing an optical waveguide block; forming an optical lens groove in the optical waveguide block; forming an anti-reflection layer to cover the optical waveguide block and the optical lens groove; forming an optical lens material above the optical waveguide block and filling the optical lens groove; removing a portion of the anti-reflection layer and the optical lens material to define a micro-lens preliminary structure; and performing a reflow process on the micro-lens preliminary structure to form a micro-lens.
Owner:FOCI FIBER OPTIC COMM
Optical design method and system for improving parallel course learning based on curvature attenuation
The invention provides an optical design method based on curvature attenuation improved parallel curriculum learning, and belongs to the field of optical design, and the method comprises the steps: obtaining an initial structure of an optical system in a small field of view, and setting optimization variables which comprise the curvature radius of each lens, the air interval between the lenses, the lens center thickness and the lens material; taking the geometric radius or the root mean square radius of the point sequence diagram as an evaluation function, taking the small view field as a starting point, gradually increasing a view field angle according to a view field increment until a target full view field is reached, adjusting an optimization variable by adopting a damped least square method after the view field angle is increased every time, and in the process of adjusting the optimization variable, if ray tracing fails, determining that the target full view field is reached. The curvature radius of each lens is reduced to the set proportion of the current curvature radius of the lens until the evaluation function is smaller than a set threshold value; the invention further provides an optical design system. The problem that when a large number of lenses are optimized while curriculum learning is used, along with the increase of a view field, part of the lenses cannot transmit light smoothly, and optimization cannot be continued is solved.
Owner:江淮前沿技术协同创新中心 +1
Recycling method of thermoset spectacle lens material and relevant spectacle lens materials
A method for recycling a thermoset spectacle lens material uses the vitrimerization process. The recycled thermoset spectacle lens materials obtained therefrom is also provided. The method for manufacturing a spectacle lens material which can be recycled without adding foreign material employing vitrimerization process and the spectacle lens material manufactured therefrom are also provided.
Owner:CARL ZEISS VISION INTERNATIONAL GMBH
Corner conveyor for lens material box
The utility model relates to the field of conveyors, in particular to a lens material box corner conveyor. The conveyor comprises a machine frame, a longitudinal horizontal conveying mechanism, a transverse horizontal conveying mechanism, a transfer conveying mechanism, a direction adjusting rotating mechanism and a material box positioning mechanism, the longitudinal horizontal conveying mechanism, the transverse horizontal conveying mechanism and the transfer conveying mechanism are installed on the machine frame, and the transfer conveying mechanism is located between the longitudinal horizontal conveying mechanism and the transverse horizontal conveying mechanism. A direction-adjusting rotating mechanism is installed on the machine frame, a movable part of the direction-adjusting rotating mechanism is connected with the transfer conveying mechanism, and a machine body of the transfer conveying mechanism is rotationally connected to the machine frame. According to the utility model, horizontal conveying is carried out in different directions through the longitudinal horizontal conveying mechanism and the transverse horizontal conveying mechanism. The transfer conveying mechanism is driven to rotate through the direction adjusting rotating mechanism, and therefore the conveying direction of the material boxes is adjusted in the transportation process. The cost is saved, and the structure is simplified.
Owner:YANGZHOU GLADWIN M&E TECH CO LTD
Implantable APD implant for treating presbyopia
ActiveCN121578537ADesign optimisation/simulationEye treatmentOphthalmology departmentOptical polymers
The invention relates to the technical field of ophthalmology optics, and discloses an implantable APD implant for treating presbyopia, and the method comprises the steps: carrying out the focal power mapping of a far-sight diopter component in a target optical parameter, obtaining the basic refraction surface type data, and carrying out the layout of a near-sight diopter component annular structure, and obtaining the diffraction phase structure data; carrying out integrated aberration balance on the two kinds of data to obtain a composite optical surface type data set; converting the phase variation in the composite optical surface type data set into an initial step height by combining a lens material and an environmental medium optical constant; obtaining diffraction structure morphology parameters based on material dispersion attribute optimization; constructing a digital processing map by taking the geometric position of the surface as a processing node and taking a topology and depth evolution relationship as a processing edge; performing microstructure construction on the surface of the optical polymer substrate according to the digital processing atlas to obtain an APD implant; according to the invention, the APD implantation processing efficiency and the optical adaptability efficiency can be improved.
Owner:SHANGHAI JINGWEIER MEDICAL TECHNOLOGY CO
Optical imaging lens
The present application provides an optical imaging lens, which comprises a lens barrel, a lens set arranged in the lens barrel and a plurality of spacer elements; the lens set is sequentially arranged along the optical axis from the object side to the image side as a first lens with negative focal power, the first lens image side is concave; a second lens with positive focal power, the second lens object side is convex; a third lens with negative focal power, the third lens object side is concave; a fourth lens with positive focal power, the fourth lens object side and image side are both convex; a fifth lens with negative focal power, the fifth lens image side is concave; a sixth lens with positive focal power, the sixth lens object side is convex, and the sixth lens material is glass; there is at least one spacer element between any two adjacent lenses, and the spacer element is in contact with the lens part adjacent to its object side.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
Low-cost large-aperture high-definition vehicle-mounted lens and imaging method thereof
The invention relates to the technical field of optical imaging, in particular to a low-cost large-aperture high-definition vehicle-mounted lens and an imaging method thereof.The optical system of the lens is composed of a first lens body, a second lens body, a third lens body, a diaphragm, a fourth lens body, a fifth lens body and a sixth lens body which are sequentially arranged from the object side to the image side along the optical axis; wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens are glass spherical lenses, and the sixth lens is a glass aspheric lens. The lens material is reasonably selected, and the focal power, the surface type and the diaphragm position of each lens are reasonably distributed, so that the lens has the advantages of large aperture, high resolution, athermalization function, large clear aperture, high light transmission capability and bright and clear imaging pictures in different light environments; meanwhile, short-wave chromatic aberration is considered, and it is guaranteed that the imaging picture does not have the purple edge phenomenon.
Owner:FUJIAN FUGUANG TIANTONG OPTICS
A visible light wide-band long-focus lens, a camera module and a terminal device
The application discloses a visible light wide-band long-focus lens, a camera module and a terminal device. The visible light wide-band long-focus lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged along an optical axis from an object plane to an image plane; one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens is an ultra-surface lens, and the rest lenses are all spherical surface lenses; the application combines the five spherical surface lenses with the one ultra-surface lens, and cooperates the lens materials and optical powers, so that the total optical length of the lens is effectively compressed, and the miniaturization and light weight design is realized. Meanwhile, the relationship among the relative illumination RI , the effective area size of the ultra-surface lens D M and the optical distortion value D 0 is optimized, so that the long-focus lens has the ability of high resolution and low aberration, and especially realizes the advantages of high-resolution imaging in the visible light wide-band range.
Owner:HANGZHOU NAJING TECHNOLOGY CO LTD
Line scanning industrial lens
PendingCN121763546ARealize object distance changeeasy to understandOptical elementsOphthalmologyImaging quality
The embodiment of the invention discloses a line scanning industrial lens. The line scanning industrial lens comprises fourteen lenses which are sequentially arranged from the object space to the image space along the optical axis. Wherein the first lens to the seventh lens form a fixed group, the eighth lens to the twelfth lens form two movable groups, the thirteenth lens and the fourteenth lens form three fixed groups, and the two movable groups move back and forth along an optical axis to realize object distance change of the line scanning industrial lens; according to the line scanning industrial lens provided by the embodiment of the invention, through matching of lens materials, reasonable distribution of focal power of each lens and adoption of a floating focusing mode, the design of the line scanning lens capable of giving consideration to low distortion, large target surface and high resolution within a working distance of 200mm-1000mm is realized, the focal length of the system is 31mm, the maximum aperture is F4, the optimal object distance is 600mm, and the distortion lt is realized; 1%, and the imaging quality can reach MTF71pl / mmgt; and 0.3.
Owner:东莞市宇承科技有限公司
contact lenses with holes
An apparatus, system, process, and method for making a perforated contact lens, and the contact lens produced thereby. A first mold having a first protruding boss and a second mold having a second protruding boss are engaged with a lens-forming material contained in a mold cavity between the first and second molds. The first and second bosses abut each other in the mold cavity between the first and second molds to form a hole through the lens when the lens material is cured. The interface between the first and second bosses can be located at an intermediate position within the mold cavity between the first and second molds, so that any surface irregularities are located in the interior of the lens rather than on the outer lens surface.
Owner:ALCON INC
Fabric shading property detection device
The utility model discloses a fabric shading performance detection device, and belongs to the technical field of fabric detection equipment. Comprising an outer protection frame, the interior of the outer protection frame is hollow, openings are formed in the five side faces of the outer protection frame, the bottom of the outer protection frame is sealed, and a detection structure is arranged in the outer protection frame; the detection structure is arranged in the outer frame and slides up and down in the sliding rod through the top plate and the bottom plate, the top plate achieves limiting of up-down movement through the top spring, at the moment, fabric needing to be detected is placed at the top of the lens discharging cavity, and lenses meeting different scene requirements are placed in the lens discharging cavity, so that the detection accuracy is improved. And the fabric is placed at the top of the lens to achieve the effect of blocking a light source.
Owner:SHAOXING HAOKONG WINDOW DECORATION TECHNOLOGY CO LTD
Recycling method of thermoset spectacle lens material and relevant spectacle lens materials
Owner:CARL ZEISS VISION INTERNATIONAL GMBH
Lens dispensing, aligning and laminating equipment
The invention discloses lens dispensing, aligning and laminating equipment, and belongs to the technical field of lens laminating equipment. Comprising a machine table, a dispensing and laminating module is arranged on the machine table, the dispensing and laminating module comprises a material tower unit, and the material table unit comprises a prism material tower and a lens material tower which are arranged in parallel; the prism material tower is sequentially provided with a prism carrying table module and a prism visual material taking unit in the advancing direction. The lens material tower is sequentially provided with a lens carrying table module and a lens visual material taking unit in the advancing direction. A fine positioning unit is arranged between the prism visual material taking unit and the lens visual material taking unit; a fitting carrier assembly is arranged below the fine positioning unit, an optical recognition alignment assembly is arranged behind the fine positioning unit, and a discharging curing unit is arranged on the side of the fine positioning unit. The lens dispensing, aligning and laminating equipment disclosed by the invention can be suitable for aligning and laminating a concave lens or a convex lens to a prism, and automatic production is realized in the whole laminating process.
Owner:KEERXUN INTELIGENT TECH (SHENZHEN) CO LTD +1
Mould pressing device and method for optical lens
PendingCN121821770AImprove machining accuracyEliminate damageOptical articlesGlass pressing apparatusTemperature controlEngineering
The invention discloses a mold pressing device and method for an optical lens, and belongs to the technical field of optical lens machining. An upper die, a lower die and a temperature control system; the roughness of the working surface of the upper mold is smaller than that of a target lens, and the lower mold is provided with vent holes arranged in an array; after the upper mold and the lower mold are attached, a circumferentially-closed mold pressing cavity is formed in the upper mold and the lower mold. The temperature control system is used for adjusting the temperature of the upper mold and the lower mold so as to indirectly control the temperature in the mold pressing cavity; the roughness of the working surface of the upper die is smaller than that of the target lens, a thermal forming mode is adopted to replace a traditional mechanical grinding machining mode, contact type mechanical friction does not exist in the whole forming process of lens machining, and an optical lens matched with the roughness of the working surface of the upper die can be formed; the introduction of microcracks, lattice damage and residual stress is fundamentally eliminated, the optical uniformity of the lens material is ensured, and the machining precision of the optical lens is effectively improved.
Owner:CHEERFUL MICRO-NANO TECH (NINGBO) CO LTD
Ophthalmic lenses with light scattering for treating myopia
An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and / or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and / or a random variation in dot size.
Owner:SIGHTGLASS VISION INC
A composite lens material for orthokeratology and a method of manufacturing the same
Owner:JIACHENG SHIXIN (BEIJING) MEDICAL TECHNOLOGY CO LTD
Long-wave athermal optical imaging lens
The application provides a long-wave athermal optical imaging lens, comprising, in sequence from an object side to an image side of a light path, a first lens of a meniscus lens with positive refractive power, a second lens of a double-concave lens with negative refractive power, a third lens of a meniscus lens with positive refractive power, and a fourth lens of a meniscus lens with negative refractive power; wherein the lens material types of the first lens, the second lens, the third lens and the fourth lens are at least three; the lens material comprises sulfide glass, ZnS crystal and germanium crystal. The application eliminates the thermal difference and the chromatic aberration of the optical system through the combination of different lens materials and the surface type design of the aspheric lens, so that the optical imaging lens can clearly image without re-focusing under the condition that the working spectrum is 8-12 mu m and the working temperature is -40 DEG C to 60 DEG C, and is suitable for application in the fields of security and protection, unmanned aerial vehicle, industrial monitoring, temperature measurement, forest fire prevention and the like.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Automatic lens assembling machine equipment
The utility model relates to automatic lens assembling machine equipment which is correspondingly provided with a convex lens feeding area, a concave lens feeding area, a gasket material feeding vibration disc, a linear aluminum shell material feeding vibration disc and a rubber plug material feeding vibration disc. The gasket material feeding vibration disc, the linear aluminum shell material feeding vibration disc and the rubber plug material feeding vibration disc are all of a cylindrical structure, and the convex lens feeding area is located between the gasket material feeding vibration disc and the linear aluminum shell material feeding vibration disc. The concave lens feeding area is located between the gasket material feeding vibration disc and the rubber plug material feeding vibration disc, and the linear aluminum shell material feeding vibration disc and the rubber plug material feeding vibration disc are provided with a finished product discharging area and an empty disc containing area. According to the utility model, the automatic assembly of the linear aluminum shell, the convex lens, the concave lens and the rubber plug is realized, and the production efficiency is improved, so that the yield of laser products is improved, the manpower is saved, and the standardization and automation of the industry are accelerated.
Owner:GEN SEMICONDUCTOR (ANHUI) CO LTD
Contact lenses with porous annulus for delivering biologics
PendingUS20260000605A1Pharmaceutical non-active ingredientsSheet deliveryOphthalmologyPharmaceutical drug
Methods of loading biologics onto contact lenses for use as drug-delivering ophthalmic devices are provided, as are contact lenses made by such methods and methods of treatment employing such contact lenses, while maintaining optical clarity and structural rigidity. The lens material has at least one concentric layer consisting of a porous material with pores large enough to deliver a biologic to a subject over a desired time period of diffusion. The concentric layers are formed through polymerizing a first, outer layer in a rotating cylinder and then repeating the method the desired number of times with different formulations for the different layers.
Owner:COLORADO SCHOOL OF MINES
Projection lens
PendingCN121763545Aincrease brightnessincrease contrastProjectorsOptical elementsContrast levelLow distortion
The invention belongs to the technical field of projection optical lenses, and discloses a projection lens which can form a lens structure with a long back focal length through three lens groups which are respectively used for focusing, zooming and fixing, can obtain higher brightness and contrast through the lens structure with the long back focal length, and is more beneficial to heat dissipation. On the basis, continuous zooming can be achieved through the first zoom lens set, the second zoom lens set and the third zoom lens set which independently move along the optical axis, and meanwhile under the condition that the back focal length is long or the length of the lens is fixed, through the design in the aspects of back focal length control, lens materials and / or lens gluing and the like, continuous zooming can be achieved. The problems of chromatic aberration and difficult light correction caused by a long back focal length lens structure can be solved in the aspects of aberration, chromatic aberration and the like, the contrast ratio and the brightness are better improved, and the purposes of long back focal length, high brightness, low chromatic aberration, low distortion, large aperture and high imaging quality of the projection lens are finally achieved.
Owner:YIBIN XGIMI OPTOELECTRONIC CO LTD
Micro-display device with height difference and preparation method thereof
The invention provides a micro-display device with height difference and a preparation method thereof. The preparation method comprises the following steps: preparing a second pixel layer comprising a plurality of second pixel units on a driving backboard; preparing a first pixel layer comprising a plurality of first pixel units on the second pixel layer, wherein the first pixel units and the second pixel units are mutually alternated and are not overlapped; depositing a lens material layer and forming photoresist, and etching the lens material layer to obtain each first lens and each second lens; the distance between the first lens and the first pixel unit is equal to the focal length of the first lens, and the distance between the second lens and the second pixel unit is equal to the focal length of the second lens. According to the method, the natural height difference between the first lens layer and the second lens layer can be utilized to prepare the first lens and the second lens with the height difference, the process is simple and convenient, and the manufacturing cost can be reduced. And the first pixel unit and the second pixel unit are respectively positioned in the focal lengths of the respective lenses, so that the performance loss of the lenses is avoided.
Owner:INNOVISION TECHNOLOGY (ZHEJIANG) CO LTD
Wax melting and discharging device
The utility model provides a wax melting and discharging device which comprises an installation seat body, a wax melting mechanism and a valve body control mechanism, the wax melting mechanism and the valve body control mechanism are arranged on the installation seat body, the wax melting mechanism comprises a containing cavity, one end of the containing cavity is provided with an air inlet, the other end of the containing cavity is provided with a discharging channel, and a valve body inlet is formed in the valve body control mechanism. The valve body inlet is communicated with the discharging channel, and a heating piece is arranged in the containing cavity. The wax melting and discharging device provided by the utility model is convenient to use, can control the wax discharging dosage to be uniform, ensures that the waxing effect of an orthokeratology lens material on a carrier is good, eliminates or greatly reduces bubbles, and further reduces the defective rate.
Owner:XINZHONGJIA (GUANGZHOU) TECHNOLOGY CO LTD
Lens Arrangement and Imaging Device
The invention relates to a lens arrangement for an imaging device comprising at least three lenses arranged in sequence along an optical axis: a positive first lens, a negative second lens positioned between the first and third lenses, and a positive third lens. Each lens is made from a different material, all of which are transmissive to light in the mid-wave and long-wave infrared range. The refractive indices of the first and second lens materials are lower than that of the third lens material in this spectral range. This configuration enables improved dual-band infrared imaging performance.
Owner:ORORATECH GMBH
Compound for synthesizing intraocular lens material as well as preparation method and application of compound
The invention relates to the field of medical materials, in particular to a compound for synthesizing an intraocular lens material as well as a preparation method and application of the compound. According to the invention, a compound obtained by condensing a residue obtained after dehydration of specific polyol and a (methyl) acrylate group is used as a multifunctional cross-linking agent to be applied to preparation of an artificial lens material, so that not only can the thermal property, the mechanical property and the optical property of the artificial lens material be improved, but also the anti-glittering property of the artificial lens material can be obviously improved; the method is mainly related to functionality, molecular weight and topological structure provided by residues after polyol dehydration. Experiments show that the flash density of the intraocular lens material prepared by using the compound for synthesizing the intraocular lens material as the cross-linking agent provided by the invention is as low as 0 / mm < 2 >, and if the compound for synthesizing the intraocular lens material with the same functionality does not have the residue after the dehydration of the specific polyhydric alcohol, the flash density of the compound can be as high as 0 / mm < 2 >. And the sparkling density is obviously higher than that of the invention.
Owner:ZHONGSHAN OPHTHALMIC CENT SUN YAT SEN UNIV +1
Ophthalmic lenses with light scattering for treating myopia
An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and / or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and / or a random variation in dot size.
Owner:SIGHTGLASS VISION INC
Method for optimizing the geometric parameters of a semi-finished optical lens
Owner:ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)
Polypropylene material for lens antenna and preparation method thereof
The invention relates to the technical field of high polymer materials, and provides a polypropylene material for a lens antenna and a preparation method of the polypropylene material. The polypropylene material for the lens antenna comprises the following raw materials in parts by weight: 70-90 parts of polypropylene, 15-20 parts of polyimide, 10-15 parts of modified hollow glass beads, 2-5 parts of a compatilizer, 1-2 parts of a nucleating agent, 0.4-1 part of an antioxidant, 0.5-1 part of a lubricant and 3-7 parts of a foaming agent, wherein the modified hollow glass beads are obtained by modifying hollow glass beads with 4-amino-2-hydroxytoluene. According to the technical scheme, the problem that the dielectric constant of a lens material in the related technology is large is solved.
Owner:人天通信集团有限公司 +2