306 results about "Eye lens" patented technology

The utility model discloses a lens for delaying eye axis growth by using a negative defocus technology, particularly relates to the field of optical spectacle lenses, and aims to solve the problems that myopia of children and adolescents in China is severe, low-age and severe, existing common methods include angle molding, defocus and foggy vision (point diffusion), and the prevention and control efficiency is declined due to the large use of the methods. According to the utility model, myopia can be better prevented and controlled, and the prevention and control efficiency is improved. A composite ring belt design is adopted, the defocusing amount of an aspheric micro lens in a composite ring belt structure is negative defocusing, and the range of the defocusing amount of the aspheric micro lens is-5.0 D-(-6.5 D). While clear vision correction is ensured in an optical central area, the defocusing amount of a ring belt outside the central area is in an asymptotically increasing trend, so that continuous defocusing is formed in a peripheral area, and the visual acuity is improved. And personalized compensation is carried out on the defocusing amount of the field angle to form a continuous myopia defocusing state, so that excessive increase of the ocular axis and the diopter is delayed, and the purpose of controlling myopia is achieved.

The invention discloses a spectacle lens with a hexagonal cylindrical microstructure on the surface, and relates to the technical field of optical lenses, and the spectacle lens comprises a lens main body which is divided into a central optical area, a hexagonal cylindrical microstructure distribution area and a peripheral optical area from inside to outside in sequence by taking the geometric center of the lens main body as a circle point, the hexagonal cylindrical surface microstructure is arranged on the surface of the lens main body and comprises a plurality of regular girdle cylindrical surface microstructures and inverse girdle cylindrical surface microstructures which are concentrically arranged, the regular girdle cylindrical surface microstructures and the inverse girdle cylindrical surface microstructures are alternately arranged in the radial direction, and irregular astigmatism generates high-order disturbance on incident wave surfaces of human eyes. The method is mainly suitable for teenagers with fast myopia development, and low-order and high-order aberrations and myopia defocus can be alternately introduced into the peripheral retina view field, so that the effect of preventing and controlling the myopia of the teenagers is improved.

The utility model relates to a spectacle lens and a pair of frame spectacles. The spectacle lens comprises an optical region and a control region, and the optical area can provide a correction effect on the vision of the ametropia patient. The control area surrounds the central optical area of the spectacle lens and comprises control subunits which are sequentially arranged in the circumferential direction, each control subunit is provided with a plurality of first lens arrays and second lens arrays which are parallel to one another, each first lens array comprises a plurality of first lenses which are attached to one another, and each second lens array comprises second lenses which are attached to one another. And an included angle which is not less than 30 degrees is formed between a straight line section limited by each first lens array and an adjacent side on the triangle. The spectacle lens can achieve a long-term effective ametropia prevention and control effect.

The invention relates to an electrochromic lens manufacturing method and an electrochromic lens, and aims to solve the problem of complex manufacturing process of an electrochromic AR spectacle lens and improve the service life and durability of the electrochromic AR spectacle lens. The manufacturing method comprises the steps that dense penetrating cutting holes are formed in a base material in a cutting mode, then the base material is tempered, etching and thinning can be conducted before tempering, then a functional layer is plated on the surface of the whole base material through evaporation coating or sputter coating, and the functional layer comprises a first conductive layer, an electrochromic layer, an ion conduction layer, an ion storage layer, a second conductive layer and the like. And then splitting at the position of the cutting hole to form small mirror surface pieces, and finally performing electrode connection and assembling to form the lens. The functional layers can be formed into different types, so that flexible matching during assembly is facilitated. The invention also provides the electrochromic lens obtained by the method. The manufacturing process is simplified, the production efficiency is improved, and the cost is reduced; the lens strength and impact resistance are enhanced, and the weight is reduced; and the functional layer is flexible in design, so that the photochromic performance and the reliability of the lens are improved.

The embodiment of the application discloses a video display method, a display device, a storage medium and a television. The video display method comprises the following steps: acquiring a target 3D signal, wherein the target 3D signal comprises a left eye frame and a right eye frame; controlling a 3D glasses to cyclically open a left eye lens and a right eye lens; when the left eye frame in the target 3D signal is displayed on a display screen, the 3D glasses is controlled to open the left eye lens; when the right eye frame in the target 3D signal is displayed on the display screen, the 3D glasses is controlled to open the right eye lens; and the opening frequency of the left eye lens and the opening frequency of the right eye lens are equal to half of the current refresh rate of the display screen. On the one hand, the television has a higher refresh rate, supports a larger size display, has a larger visual angle, and thus the 3D visual experience of a user can be improved; on the other hand, a user only needs to wear 3D glasses to better experience the 3D stereoscopic display effect through the television without spending a high cost to purchase a VR hardware device.

The invention provides a method for applying a pattern (2) on an ophthalmic lens substrate (1). The method comprises: creating a low contact angle surface on a preselected portion (4) of the surface of the ophthalmic lens; and providing the ophthalmic lens substrate (1) with a hard coating composition (70) and optionally a primer coating composition.

The utility model discloses an optical machine module and a near-to-eye display device. A lighting assembly and a lighting and imaging multiplexing assembly of the optical machine module are located on the two sides of a waveguide sheet. Illuminating light emitted by the illuminating assembly is transmitted in the first direction, transmitted through the waveguide sheet, the fly-eye lens, the first polaroid and the lens set in sequence, then incident to the surface, close to one side of the lens set, of the light modulator and modulated into imaging light through the light modulator to be reflected, and the imaging light is transmitted through the lens set and the second polaroid in the second direction and then emitted to the other side of the light modulator. And after total reflection transmission in the waveguide sheet, the light is emitted from the exit pupil area of the waveguide sheet to the human eyes, and the included angles between the first direction and the normal of the light modulator and between the second direction and the normal of the light modulator are the same. According to the optical machine module provided by the utility model, the volume of the optical machine module can be reduced on the premise of ensuring the performance of the optical machine.

The invention discloses a method for designing a mixed type boundary contour line of a progressive multi-focus ophthalmic lens, and belongs to the field of design of progressive multi-focus ophthalmic lenses. The method comprises the following steps: constructing a Laplacian equation, and selecting a mixed rectangular boundary as a boundary of the Laplacian equation; two nodes with adjustable positions are arranged on the right side edge of the second rectangular boundary; solving a Laplacian equation for the second rectangle by adopting a finite element method, and carrying out interpolation to obtain a contour line numerical matrix solution of the second rectangle; and combining the contour line numerical solutions of the first rectangle, the second rectangle and the third rectangle to obtain a contour line function numerical matrix solution of the hybrid rectangular region. According to the invention, the contour line mixed type boundary design method is utilized to greatly improve the use range of the far vision area and the near vision area of the ophthalmic lens again, reduce the astigmatism area and improve the optical performance of the lens; the contour line mixed type boundary design method provided by the invention can also be applied to the personalized design aspect of progressive multi-focus spectacle lenses.

1. Name of the product in this design: Eyeglasses frame. 2. Purpose of this design: For human wear or installation of eyeglass lenses. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to a method for calculating a digital twinning of an ophthalmic lens having a curved lens surface in order to manufacture the ophthalmic lens using the digital twinning, said digital twinning of an ophthalmic lens comprising a layer stack having individual layers, characterized by the following steps:-determining said layer stack, such that the form of an interface of individual layers replicates the curved lens surface of the digital twin.

The utility model provides an eye crystal personal dosimeter which comprises a clamping ring used for clamping a head, the clamping ring is provided with two end portions, at least one end portion is connected with a rotating handle in a rotating mode, an installation groove is formed in the outer side of the free end of the rotating handle, the installation groove is detachably connected with a sealing cap, and the sealing cap is fixedly connected with the clamping ring. The thickness of the inner side of the end, connected with the clamping ring, of the rotating handle is reduced at the end, a rotating shaft is arranged on the inner side of the end, a limiting piece is arranged at the end of the rotating shaft, a flange protruding outwards is arranged at the end of the clamping ring, and a bayonet allowing the rotating shaft to enter and rotate is formed in the flange. The problems that in the prior art, wearing experience is poor, falling off is prone to occurring, sight is affected, wearing of the protection device is hindered, and wearing steps are tedious are solved.

The invention provides a method for producing an optical element of a user-customized ophthalmic lens for an image-generating display device positionable on the head of a user, the method comprising the following steps: A) producing a plurality of substrate stacks (25) of a first variant and a plurality of substrate stacks (25) of a second variant, the substrate stacks (25) of all variants comprise in each case a waveguide (11) having a first side (16) and a second side (17) and a first lens (20) connected to the first side (16), the substrate stacks (25) of the same variant have in each case the same optical property, and the substrate stacks (25) of different variants differ in at least one predetermined optical property; b) producing a customized lens (21) for the user based on the visual impairment of the user and based on the selected substrate stack variants; and C) providing a selected variant of the substrate stack (25) and the produced custom lens (21) in order to be able to connect the produced custom lens (21) with the provided substrate stack (25) in order to produce the ophthalmic lens (3) customized for the user.

The invention discloses an anti-microwave-radiation and anti-blue-light spectacle lens and a preparation method thereof, and belongs to the technical field of optical lenses, the anti-microwave-radiation and anti-blue-light spectacle lens is structurally divided into three layers, namely an anti-blue-light layer, a water-resistant antifouling layer and an anti-microwave-radiation layer from bottom to top in sequence, through a special synergistic relationship among the three layers, the interface bonding is good, and the anti-microwave-radiation and anti-blue-light spectacle lens is not easy to peel off; in addition, good microwave radiation prevention and blue light prevention effects are achieved, oil contamination can be prevented, adhesion of rainwater can be avoided when the waterproof and anti-glare film is used in rainy days, and the sight is prevented from being influenced; the prepared antifouling layer contains pyridine groups, the pyridine groups and cobalt metal ions of the ZIF-8 / ferric oxide composite fibers in the microwave radiation prevention layer can easily form coordinate bonds, pyridine group doping is formed, the dielectric loss angle tangent of ZIF-8 is low, and the consumption efficiency of microwave electric field energy is limited. The doping coordination of pyridine groups can promote the formation of active sites, enhance dipole polarization and interface polarization, and improve the microwave radiation resistance of the microwave radiation resistance layer.

The invention belongs to the technical field of ophthalmic optics, and relates to a design method of a personalized spectacle lens and the spectacle lens. The design method comprises the following steps: constructing a spectacle-eye joint mathematical model based on spectacle frame posture and eyeball rotation, and analyzing and calculating the mathematical model to obtain a theoretical diopter calculation formula of the lens surface under prescription diopter; based on the basic eye model, according to the prescription diopter, the posture of the spectacle frame, and the central diopters, refractive indexes and central thicknesses of the inner and outer surfaces of the lenses, constructing a lens-eye system comprising the lenses to be optimized and eye models with different rotation angles; calculating the actual diopter of the surface of the to-be-optimized lens based on the intersection point of the human eye visual axis of the eye model with different rotation angles and the surface of the to-be-optimized lens; taking the minimum absolute value of the difference between the actual diopter and the theoretical diopter of the surface of the to-be-optimized lens as a target, ensuring the imaging quality and machinability of the lens, and optimizing the parameters of the inner surface of the to-be-optimized lens to obtain the personalized spectacle lens considering the posture of the spectacle frame and the rotation of the eyeball.

The invention relates to an artificial eye lens (1) having at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10), which has a number n, where n is greater than or equal to 2, of base lens body foci (BFN; BFI; BFF), wherein the artificial eye lens (1) has a transmission filter system (12) comprising at least one transmission filter (16, 17, 18) which is optically operatively connected to the base lens body (10), wherein at least one base lens body focus (BFN; BFI; BFF) has chromatic aberration and, depending on the chromatic aberrations thereof, a number m, where m is greater than zero and less than n, of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed by the transmission filter system (12).

The utility model discloses a spectacle lens manufacturing die, which belongs to the technical field of spectacle lens manufacturing equipment and comprises an upper die holder (1) and a lower die holder (2). An upper die body (3), an upper die cavity (4) and a lens upper die (5) are arranged on the upper die base (1); a lower die body (9) is arranged on the lower die body fixing plate (8), and a lower die cavity (10) and a lens lower die (11) are arranged in the lower die body (9); the surface of the lens upper die (5) is provided with an upper die lens cavity (13), and the middle of the upper edge and the middle of the lower edge of the upper die lens cavity (13) are provided with a first recess (14) higher than the upper edge and the lower edge; the surface of the lens lower die (11) is provided with a lower die lens cavity (16), and the middle of the upper edge and the middle of the lower edge of the lower die lens cavity (16) are provided with second recesses (17) higher than the upper edge and the lower edge; the lens cutting device is beneficial to lens cutting, improves the utilization rate of lenses, reduces waste materials, and is beneficial to saving production cost.

This utility model discloses an eyeglass lens that is easy to install and position, comprising: a lens body, a sealing ring fixedly connected to the edge of the lens body, a cavity formed inside the sealing ring, and a magnetic strip disposed within the cavity; a reinforcing layer disposed on the outer side of the lens body to improve the hardness and water resistance of the lens body; and multiple stabilizing components, which are evenly assembled on one side edge of the sealing ring to cooperate with the frame in positioning the lens body. Each stabilizing component includes a stabilizing frame fixedly connected to one side edge of the sealing ring. This utility model relates to the field of eyeglass lens technology. Through the magnetic strip, this utility model enables the lens body to be magnetically connected to the metal frame. The stabilizing components, in conjunction with the frame, provide stable support for the lens body, ensuring the stability of the lens body after connection with the metal frame, and greatly improving the ease of lens body installation.

A detection device detects an imaged human from a captured image captured by a ceiling camera using a fish-eye lens, and includes a division part, an area estimation part, and a determination part. The division part divides the captured image into a plurality of areas. The area estimation part calculates a probability that each of the plurality of areas includes a position where a detection target estimated to be a human is present. The determination part determines whether the detection target is a human using the probability of each of the plurality of areas.

The application discloses a spherical lens antenna and a manufacturing method, a communication base station, a communication system and a communication method thereof, and belongs to the technical field of antennas. The spherical lens antenna comprises a lens main body and a signal feed source. The lens main body is a sphere formed by mutually combining sheet-shaped substrates, and a plurality of cavities are formed in the sphere by the sheet-shaped substrates. The wall surface of the cavity is attached with electromagnetic base bands extending along mutually orthogonal directions, and the electromagnetic base bands are made of metal. The electromagnetic base bands are thin film strips, and the total extension length of the electromagnetic base bands in different directions is different. The signal feed source is arranged on one side of the lens main body and emits communication electromagnetic waves of different polarization directions towards the same propagation direction of the lens main body. The different polarization directions of the communication electromagnetic waves are matched with the length extension directions of the electromagnetic base bands in different directions. The application realizes the emission of electromagnetic waves at the same position and the same angle of the antenna, and realizes the dual-function characteristics of the Luneberg lens and the Maxwell fish-eye lens by emitting electromagnetic waves of different polarization directions.

1. Name of the product in this design: Eyeglass lens film. 2. Purpose of this design: For use as a pattern on eyeglass lenses. 3. The key design feature of this product is its pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is a planar product with continuous four sides and no defined boundaries.

An eye lens having a front lens element and a rear lens element, which each have a positive optical power and an optical region, and an intermediate element, which is connected to the lens elements outside the optical regions so that the lens elements and the intermediate element form a cavity. The eye lens allows the width of an access incision necessary for implantation to be reduced. The eye lens includes the lens elements and the intermediate element that are shaped such that, in the implanted state, a distance between the front lens element and the rear lens element is fixed and the cavity has an opening which allows liquid to flow into the cavity. Embodiments of the invention include a method for producing such an eye lens and a method for implantation.

1. The name of the design product: automobile headlamp (Prius 10-15 three-eye lens version). 2. The use of the design product: used for automobile headlight lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

According to the invention, the existing MR organic molecules are used in the anti-blue light product, so that not only are the defects of broadband absorption, low light transmittance, color cast, instability and the like of the traditional absorption type anti-blue light material improved, but also the overall light stability and durability are improved by utilizing the structural advantages of the MR molecules. The blue-light-resistant transparent base material achieves precise narrow-band protection, long-term stable protection, excellent color reducibility and good compatibility with existing transparent base materials, and is suitable for various blue-light-resistant products such as spectacle lenses, screen protection films, vehicle-mounted glass, lighting lampshades and VR / AR optical elements.

An endoscope auxiliary device for gastrointestinal polyp measurement mainly comprises a polyp scale, a pushing tube and an operating handle, overcomes the estimation error caused by the fish-eye lens distortion and zoom of the existing technology, and fills the technical gap of accurate physical measurement of polyp shape. At the same time, in addition to being used for physical measurement of the size of polyps in the digestive tract under the endoscope, the device can also be combined with the endoscope administration tube to realize the clinical functions including polyp measurement, lavage, spraying of liquid medicine and contrast.

The invention discloses a spectacle lens and glasses, and relates to the technical field of myopia prevention and control. The spectacle lens comprises a lens body and a grid lattice structure, the lens body is provided with a central optical area arranged in the optical center of the lens body and a peripheral optical area arranged around the central optical area, and the grid lattice structure is arranged on the surface of the lens body and at least partially arranged in the peripheral optical area. The grid lattice structure comprises a plurality of discretely-distributed structural units and linear connecting parts for connecting every two adjacent structural units, the structural units are point-shaped protrusions or point-shaped grooves and used for forming nodes of the grid lattice structure, and the linear connecting parts are linear protrusions or linear grooves and used for connecting the adjacent structural units to form a grid layout. The grid lattice structure can generate a continuous and uniform scattering effect on light passing through the peripheral optical area, and the imaging contrast ratio of retina imaging can be effectively reduced, so that the growth of an eye axis is slowed down, and the development of myopia is effectively controlled.

A fly-eye lens group, a light source device, and a projection apparatus. The fly-eye lens group includes: a first fly-eye lens, a second fly-eye lens, and a third fly-eye lens. The first fly-eye lens is parallel to the second fly-eye lens, the first fly-eye lens is perpendicular to the third fly-eye lens, a double fly-eye structure is formed by the first fly-eye lens and the second fly-eye lens, and the third fly-eye lens and the first fly-eye lens also form a double fly-eye structure. The fly-eye lens group is used for homogenizing incident first excitation light, excited light, and second excitation light.

1. Name of the product in this design: Spectacular lens (optical path difference adjustable structure lens). 2. Purpose of this design: Eyeglass lenses used to slow down the progression of myopia and correct vision. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Other situations requiring explanation: Part A is an enlarged view of a portion of point A in the main view; Part B is an enlarged view of a portion of point B in the main view; Section C-C is the C-C section view in the rear view; Part D is an enlarged view of a portion of point D in the C-C section view; Part E is an enlarged view of a portion of point E in the top view.