43 results about "Spectacle lenses" patented technology

This application relates to the field of lens processing and discloses a lens manufacturing method, a glasses manufacturing method, a lens, and glasses. The lens manufacturing method includes: determining target vehicle information based on the application scenario information of the lens; acquiring the display parameters of the vehicle display of the target vehicle information, wherein the vehicle display is configured to output polarized light signals to the target area to form a display image in the target area, and the display parameters include at least the polarization angle parameters of the polarized light signals; providing an optical lens layer; and setting a polarization layer on the optical lens layer with a polarization angle matching the polarization angle parameters to obtain a lens. This improves the brightness of the user's field of vision and reduces glare when wearing glasses containing the lens. Furthermore, the optical effect of the manufactured lens can be flexibly adjusted according to the vehicle model driven by the user, so that the polarization angle of the lens is adapted to the vehicle display of the vehicle being driven, thus combining the functions of blocking sunlight and acquiring information displayed on the vehicle display, thereby improving the driving experience and driving safety.

This utility model relates to the field of cleaning equipment technology, and in particular to a spectacle lens cleaning device, including a cleaning tank with a double-layer structure. A support plate is movably installed in the upper layer of the cleaning tank, and multiple rows of equidistantly distributed flexible columns are fixed on the surface of the support plate. A lens is vertically placed between adjacent rows of flexible columns. A locking mechanism connected to the support plate is fixed on the outer wall of the cleaning tank, and two sets of drying mechanisms are embedded in the side wall of the cleaning tank. This spectacle lens cleaning device vertically places the lens between the two rows of flexible columns, enabling efficient cleaning of both sides of the lens. It has the advantages of good cleaning effect, and the vertical placement of the lens saves space. Water stains are also more easily dripped off under gravity after cleaning, improving subsequent drying efficiency. Simultaneously, the flexible columns can fix lenses of different sizes, ensuring that the lenses are separated during cleaning and reducing the risk of damage.

The purpose of the present disclosure is to provide a spectacle lens evaluation method capable of evaluating the visibility of an object through a spectacle lens provided with an antireflection film disposed on an eyeball-side surface in a prescribed environment. A spectacle lens evaluation method according to the present disclosure is a method for evaluating a spectacle lens provided with a spectacle lens base material having an eyeball-side surface and an object-side surface, and an antireflection film disposed on the eyeball-side surface of the spectacle lens base material, the method comprising a step for calculating an index Pback represented by formula (1).　In formula (1), RRef(λ) represents the reflectance of a surface on the eyeball-side surface side of a sample obtained by removing the antireflection film from the spectacle lens at a wavelength λ.　RAR(λ) represents the reflectance of a surface on the antireflection film side of the spectacle lens at the wavelength λ.　Rskin(λ) represents the reflectance of a skin corresponding to the wavelength λ.　Vps(λ) represents the sensitivity of an eye corresponding to the wavelength λ.

In a method for calculating and / or optimizing and / or producing individual spectacle lenses, a visual scene is shown to a lens wearer. The method further comprises obtaining gaze motion data comprising information about a velocity of an eye direction and / or a velocity of the head of the lens wearer and / or a velocity of a fixation position of the gaze of the lens wearer. The obtained gaze motion data is mapped to a specific lens design for the lens wearer by means of a mapping function. A spectacle lens for the lens wearer is produced according to the specific lens design.

An electrochromic element in which a decrease in responsiveness is minimized by making a side of the electrochromic element have gas barrier properties, and a lens for spectacles, the electrochromic element including a pair of electrode layers and an electrochromic layer arranged between the electrode layers, wherein a barrier layer surrounding the electrochromic layer is provided.

A spectacle lens is provided for a display device (1) that can be placed on the head of a user and produces an image, wherein the spectacle lens (3) has a front (23) and a back (11), an inlet section (28) and a deflection section (18) spaced apart from the inlet section (28), and has a light guidance channel (21), wherein the spectacle lens (3) has a channel shell (13) in which the light guiding channel (21) runs, and a first lens (24; 25), wherein the light guidance channel (21) guides light beams (L1) of the generated image, which are coupled into the spectacle lens (3) via the entry section (28), to the deflection section (18), from which they are deflected to exit the spectacle lens (3) via the back (11), wherein the first lens (24; 25) comprises a first stack of a first plastic shell (30; 32) and a first reinforcing shell (31; 33), wherein the first reinforcing shell (31; 33) has a higher bending stiffness than the first plastic shell (30; 32).

The utility model discloses a kind of spectacle lens edging machine waterproof cover with integrated lighting function, it relates to lens edging machine technical field.It includes: waterproof cover main body, cover is located in the above of abrasive wheel and lens grinding station of edging machine, for blocking the water splash and powder splashing generated by grinding;Hollow rotating shaft is set on the waterproof cover main body;LED light source is set in the hollow rotating shaft, the light emitting direction of the LED light source is towards the grinding contact area of abrasive wheel and lens.The utility model has beneficial effect that light source is embedded in shaft or closely adheres to the outer surface of shaft, without extra occupying equipment space, avoid the space crowded, wiring messy problem brought by external lamp, power cord passes through hollow rotating shaft internal wiring, easily realize the good sealing of shaft end outlet (such as using waterproof joint, sealing ring), effectively isolate water splash, water vapor and grinding powder erosion to circuit and light source.

The application discloses a cutting device for edge-shaped resin spectacle lenses and a cutting method thereof, comprising an edge grinding machine, the edge grinding machine is provided with a cutting tool for cutting the edge of the resin lens, the edge structure of the cutting tool is matched with the edge structure of the resin lens, and the mounting interface of the cutting tool is consistent with the tool interface of the edge grinding machine; the application directly uses the traditional lens edge grinding machine, does not need to purchase expensive five-axis numerical control equipment, and can seamlessly integrate the optical parameter setting function of the original equipment, thereby guaranteeing the optical quality and reducing the equipment investment and tool wear cost; by replacing different special forming tools, various personalized and customized special-shaped edge requirements, including steps, sharp edges, grooves, inclined surfaces and combinations thereof, can be flexibly coped with.

This utility model relates to the field of contact lens packaging mold technology, and discloses a graduated shell mold, including a male shell mold and a female shell mold that cooperate with each other; the male shell mold has an angle marking area on its periphery, which has at least one zero point mark and multiple graduation marks, and the interval angle between adjacent graduation marks is 5°-360°, forming a clear and intuitive angle scale system; the female shell mold is equipped with a power pointer that corresponds precisely to the angle marking area of ​​the male shell mold; this utility model has a liquid injection hole and a vent hole, and air is discharged through an inert gas replacement process, which solves the problems of inefficient power identification and lens oxidation in existing shell molds. It is suitable for the precise packaging of contact lenses, and the lens parameters in a single shell mold can be quickly identified by the intuitive alignment of the power pointer and the graduation marks.

A double-sided composite spectacle lens and an inject mold therefor are provided. One surface of the spectacle lens is an aspherical surface, and the other surface is a designed aspherical surface used to inhibit astigmatism, and a spectacle lens formed by combining the two surfaces has two areas with different functions: optimizing optical performance, and thinning for aesthetics. By controlling the reduction of diopter and optimizing astigmatism on one surface, and inversely offsetting astigmatism on the other surface, the degree of astigmatism of the spectacle lens formed by combining the two surfaces is significantly lower than a diopter variation, and the degree of oblique astigmatism is significantly reduced. The aesthetic thinning effects of reducing the edge or center thickness of the double-sided composite spectacle lens are significantly enhanced by accelerating reduction of the diopter on one surface and changing from reducing to increasing the diopter on the other surface.

The invention relates to a spectacle lens for a display device (1) which can be placed on the head of a user and which generates an image, wherein the spectacle lens (3) has a front face (23) and a rear face (11), an entry portion (28) and a deflection portion (18) spaced apart from the entry portion (28), and a light-guiding channel (21), wherein the spectacle lens (3) has a channel shell (13) in which the light-guiding channel (21) runs, and has a first lens (24; 25), wherein the light-guiding channel (21) guides light beams (L1) of the generated image, which are coupled into the spectacle lens (3) via the entry portion (28), up to the deflection portion (18), from which they are deflected in order to exit the spectacle lens (3) via the rear face (11), wherein the first lens (24; 25) comprises a first stack composed of a first plastic shell (30; 32) and a first reinforcement shell (31; 33), wherein the first reinforcement shell (31; 33) has a higher bending rigidity than the first plastic shell (30; 32).

The invention relates to a method and a system for printing a pattern (22) on an spectacle lens substrate (20) arranged on a carrier (18). According to the invention, a filament (36) in extruding a thermoplastic material (28) having a semi-molten state through a nozzle (32) is provided for depositing said filament (36) on curved surface (34) of said spectacle lens substrate (20).

A computer-implemented method generates design data for manufacturing a single vision spectacle lens having a prescribed power and an edge contour fitted to a predefined spectacle frame. Prescription information regarding the prescribed power for the spectacle lens and geometrical information regarding the predefined spectacle frame is provided. Moreover, a geometrical profile of at least one surface of the spectacle lens is optimized. Further, a spatial variation of a refractive index of the spectacle lens is optimized, wherein optimizing the geometrical profile of the surface of the spectacle lens and optimizing the spatial variation of the refractive index of the spectacle lens are carried out such that an optical power of the spectacle lens corresponds to the prescribed power and an edge thickness of an edge contour of the spectacle lens fitted to the geometrical information regarding the predefined spectacle frame varies by 0.5 mm or less over the edge contour.

Provided is a method for designing a single-focus aspherical spectacle lens, which is a single-focus lens in which a prescription value corresponding to only one object distance D0 is set. This method for designing a single-focus aspherical spectacle lens comprises: an object distance setting step for setting, for each position on a xy plane in plan view of an optical surface of the spectacle lens, an object distance Dn from a wearer to a prescribed object when the line of sight of the wearer passes through the position when the wearer visually recognizes the object, and causing three or more types of object distances Dn including the object distance D0 to exist on the xy plane in plan view; an aspherical coefficient calculation step for calculating aspherical coefficients corresponding to the respective object distances Dn at a plurality of set positions; and a z-axis coordinate conversion step for converting the calculated aspherical coefficients into z-axis coordinates indicating the height for each position. Also provided are technology related to said method.

The present invention provides a spectacle lens and a technique related thereto in which, in formula 1, where d is a distance (unit: mm) between the spectacle lens and a pupil, s is an imaginary object distance (unit: D=1 / m) assumed when a line of sight passes through a base region in a functional region, and c is a curvature (unit: 1 / m) of the base region in the functional region, there exists at least one d satisfying the formula 1 within a range of 13.05 mm to 16.30 mm. (1): 0.86<{1√(d2+102) / (1000 / s)}×[d+10×{10 / (1000 / c)}] / √(d2+102)<1.14

The present disclosure relates to optical films for spectacle lenses for use with eyes experiencing eye-length-related disorders, like myopia. The optical films are configured with a plurality of optical elements, such as a plus-powered donut-ring and optical elements with azimuthally varying power distributions configured with truncations, depressions or a tilt. The arrangement, power, size, number and / or orientation of the optical elements are pseudo-random. This configuration provides dynamic irregular directional cues to the eye which occur during natural and / or instructed eye movements. Instructions on eye movements may be provided via a Myopia Management App. This invention is aimed at slowing the progression of myopia or at preventing or slowing the onset of myopia.

In a spectacle lens of a display device the coupling-in portion has an entry surface which is wider in the first direction than the image of the imager, and it is possible to adjust the entry surface coupling-in position at which the image is coupled in via the entry surface in the first direction. The coupling-in position determines the coupling-out direction of the coupling-out portion of the spectacle lens, and therefore the position of the exit pupil in the first direction such that the distance between the exit pupil and the coupling-in portion in the first direction can be adjusted. Irrespective of the coupling-in position, when the deflecting structure causes a deflection, the deflecting structure is always utilized across the entire predetermined extension in the first direction.

A spectacle lens which has permanent markings is mounted on a mounting, in particular a suction mounting. The apparent location of the permanent markings is detected on the spectacle lens with a detection device. Additionally, the spectacle lens is illuminated eccentrically with respect to an optical axis of the detection device using eccentric light sources. Reflections from the lights sources on the spectacle lens are likewise detected. On the basis of the detected reflections and the apparent location of the permanent markings, the position and / or orientation of the mounted spectacle lens are determined.

A spectacle lens design includes an aperture and at least two ring-shaped focusing structures surrounding the aperture. The aperture has a dioptric power, and the ring-shaped focusing structures surrounding the aperture provide an additional power relative to the dioptric power of the aperture. A ring-shaped diffuser is arranged between neighboring ring-shaped focusing structures. Neighboring ring-shaped focusing structures can adjoin each other with a ring-shaped contact line between them forming the ring-shaped diffuser. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures provides a ring shaped focal line. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures consists of lenslets that adjoin each other so as to form a ring of lenslets and provides a plurality of foci along a ring shaped line.

This invention discloses a lens parameter verification method, system, computer device, and storage medium. The method includes: acquiring a focimeter measurement image; wherein the focimeter measurement image contains measurement data related to spectacle lenses; extracting the focimeter measurement data from the focimeter measurement image using image recognition technology; validating the focimeter measurement data and filtering and outputting structured parameters based on the validity verification result; performing rule verification on the structured parameters using a rule engine to obtain the rule verification result; and displaying and storing the rule verification result. This invention, through automated image acquisition, data extraction, verification filtering, rule verification, and display and storage processes, can achieve intelligent and efficient lens parameter verification, thereby improving the verification efficiency and accuracy of lens parameters.

This invention relates to an active optical system (100) for ophthalmic spectacle lenses or augmented reality devices. According to the invention, the active optical system (100) comprises: a base lens (10); a stacked structure including at least one active diffractive phase lens (20) having a variable power with a minimum diffractive power variation of at least 0.25 diopters, the stacked structure having a variable total power, the active diffractive phase lens exhibiting multiple discrete phase levels (21, 22, 23, 24) in cross-section; and an activation device (30) for changing the variable power of the at least one active diffractive phase lens, the variable total power of the stacked structure varying continuously within a defined power range or having at least three different values ​​within a defined power range, the stacked structure having a total thickness of less than 1 mm.

This invention belongs to the field of optical material measurement technology, specifically a device and method for measuring the refractive index of curved optical lenses based on white light spectral interferometry. The invention employs a Michelson interferometer combined with a small-core fiber optic detection scheme. A 45-degree mirror folds the optical path vertically, allowing the curved lens sample to be placed horizontally on a sample holder. The small-core fiber collects interference signals only from the central region of the lens, enabling the curved interference to be approximated by an equivalent planar model. During measurement, the interference spectrum of the sample in place and the air reference spectrum after sample removal are collected separately. The group refractive index dispersion curve of the sample over a wide wavelength range is calculated by analyzing the fringe period. This invention eliminates the need for a flat sample, allowing direct measurement of curved lenses and spectacle lenses; it also eliminates the need for mechanical scanning components, offering a wide measurement range and high accuracy.

This invention relates to coating spectacle lenses (3) by physical vapor deposition (PVD). A method for physical vapor deposition is presented, comprising: providing a crucible containing a first evaporation material (41) and a second evaporation material (42), wherein the first evaporation material has a first vapor pressure and the second evaporation material has a second vapor pressure different from the first vapor pressure, wherein the ratio of the exposed surface of the first evaporation material to the exposed surface of the second evaporation material in the crucible is adapted to offset the vapor pressure difference between the first evaporation material and the second evaporation material; and simultaneously evaporating the first evaporation material and the second evaporation material from the same crucible. This disclosure further relates to a crucible for physical vapor deposition and a physical vapor deposition system, particularly for coating optical surfaces such as spectacle lenses.

A spectacles lens having a specifically shaped peripheral region having differing optical properties for improving long-term wearing comfort while simultaneously improving perception. The spectacles lens includes a continuous channel region that extends continuously from an upper edge to a lower edge of the spectacles lens, and an active region that horizontally adjoins the continuous channel region on both sides and extends continuously from the upper edge to the lower edge of the spectacles lens. The refractive power of the spectacles lens increases from the channel region to the active region on both sides of the channel region.

1. The name of the design product: lensometer. 2. The use of the design product: an optical instrument for measuring the vertex power and prism of spectacle lenses, determining the optical center, axis and printing mark of the lenses, checking whether the lenses are correctly installed in the frame, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

This utility model provides an intelligent glasses defogger, relating to the technical field of glasses defoggers. It includes a housing and a defogger assembly. The defogger assembly includes a fan installed inside the housing. A mounting base is connected to the side of the housing near the fan, and a spiral heating wire is installed on the mounting base. In this utility model, when the fan is activated, it draws outside air into the housing. The airflow first passes through a moisture-absorbing and breathable mesh array. The spherical desiccant on the mesh array absorbs moisture from the air, drying it. The dried air then flows to the spiral heating wire on the mounting base. The heating wire is energized and heats the dried air, forming a dry hot airflow. Finally, the hot airflow blows onto the glasses lenses through an outlet on the housing, rapidly evaporating the fog on the lenses using heat energy. Simultaneously, the drying properties prevent moisture from re-condensing, thus efficiently completing the defogging process and avoiding secondary fogging. The entire process achieves rapid defogging through the synergistic effect of airflow drying and heating.

The application discloses a free-form spectacle lens for visual field defect correction and a design method thereof, the lens is a single integral structure free-form lens, at least one surface has a continuously changing curvature distribution, which continuously changes from a central area to a visual field defect corresponding area, and a spatially continuously changing prism effect is generated; personalized design is carried out based on a visual field defect map of a patient, a blind area visual field is remapped to a healthy retina area, and the lens is integrally processed, and is not required to be assembled or adjusted in a later period, the design method comprises the following steps: obtaining a visual field examination result, determining a remapping function, optically inversely calculating a curvature distribution, free-form modeling, optical optimization and outputting processing data; the application realizes continuous and smooth visual field expansion (25-40 degrees), eliminates discrete jumps and a "ghost" phenomenon, is not required to be adjusted, is simple to manufacture, has a beautiful appearance, has excellent optical quality, and is suitable for rehabilitation of a patient with a visual field defect after neurosurgery.