327 results about "Spectacle lenses" patented technology

The present disclosure is directed to methods for manufacturing ophthalmic lenses utilizing a freeform process, the method comprising: machining a lens blank, semi-finished lens blank and / or an intermediate ophthalmic lens precursor to form a surface of the spectacle lens with at least a portion of the surface comprising a curvature for the correction of the myopic prescription of the wearer; machining a pattern of a plurality of optical elements and / or spaces therebetween on the surface of the spectacle lens suitable for delivering an effective optical signal to the retinal receptors of a progressive myope to slow, significantly slow, stop and / or shorten / regress the progression of axial eye length growth; and / or polishing the surface of the spectacle lens; wherein, after polishing the spectacle lens, at least one of the plurality of optical elements may have a relative surface elevation change per millimeter interval substantially greater than at least a portion of the prescription surface over a comparable interval. The present disclosure is also directed devices and systems manufactured using the described manufacturing methods.

The present disclosure generally relates to a lens that provides a stop signal for myopia over a substantial portion of a spectacle lens that is being used by a viewer. The present disclosure relates to an apparatus, method, and / or system for applying a stop signal for eye development using a spectacle lens in combination with an array of microlenses. The present disclosure also relates to an apparatus, method, and / or system for modifying incident light through a spectacle lens that utilizes color cues to slow the rate of myopia progression. The present disclosure relates to an apparatus, method, and / or system for applying a stop signal for eye development using a spectacle lens in combination with a refractive optical element and / or a diffractive optical element that provides conflicting or opposing optical signals at wavelengths between 510 nm and 610 nm.

The invention belongs to the technical field of refraction detection, and particularly relates to a human eye dynamic refraction detection method based on a three-dimensional phase deflection method. The method comprises the following steps: S1, based on a three-dimensional phase deflection imaging system and an iterative representation integral algorithm, obtaining a 3D shape of a to-be-detected human eye in place in real time; s2, on the basis of the 3D shape of the to-be-detected human eye, the current staring direction of the to-be-detected human eye is obtained in real time in place by combining a ray tracing method; s3, establishing a refractive imaging system, and obtaining a diopter value of the to-be-measured human eye in the current staring direction in real time in place based on the refractive imaging system; and S4, fitting different staring directions of the to-be-detected human eyes and the dynamic numerical curve of the diopter values in the corresponding staring directions to realize human eye dynamic refraction detection. According to the method, an accurate treatment scheme can be accurately provided for the ametropia patient in a real scene, and guidance can be provided in the aspect of personalized customization of the spectacle lenses.

A method for designing a digital twin of a coated spectacle lens with a computer for the purpose of a use of the digital twin for manufacturing a coated spectacle lens and a method for manufacturing a coated spectacle lens are provided. The spectacle lens contains a predefined structure or a plurality of predefined structures. The predefined structure or structures are formed by selectively curing the coating composition with a laser beam.

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.

A computer-implemented method for generating printing instructions for inkjet printing a spectacle lens, wherein the printing instructions are based on a digital twin of the spectacle lens, the digital twin being sliced into a layer stack. The method includes the steps of 1) positioning a volume element in a discrete xm+1, ym+1, zm+1 . . . xn+1, yn+1, zn+1 position of a layer of the layer stack, based on a positioning of a volume element in a discrete xm, ym, zm . . . xn, yn, zn position of an adjacent layer of the layer stack; or 2) not positioning a volume element in a discrete xm+1, ym+1, zm+1 . . . xn+1, yn+1, zn+1 position of a layer of the layer stack, based on a positioning of a volume element in a discrete xm, ym, zm . . . xn, yn, zn position of an adjacent layer of the layer stack.

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.

A computer-implemented method suitable for evaluating a progressive spectacle lens and a corresponding computer are provided. Measurement data indicative of at least one of color or transmittance along a plurality of measurement points across at least one line of a spectacle lens is received. The method further includes calculating scalar values representing differences between measurement data of adjacent or overlapping sets of measurement points of the plurality of measurement points. The spectacle lenses are then evaluated based on the scalar values.

A computer-implemented method for calculating a digital twin of a spectacle lens is provided to use the digital twin for a manufacture of the spectacle lens. The digital twin has a predefined power distribution and contains a layer stack with a plurality of individual layers, each layer having a non-uniform layer thickness with a spatial variation and a uniform refractive index. The method includes determining the spatial variation of the layer thicknesses of the individual layers to achieve the predefined power distribution by a spatial control of optical path lengths.

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.

A method for applying a pattern on a spectacle lens substrate is disclosed. The method produces a low contact angle surface on a preselected part of a surface of the spectacle lens by plasma treating a preselected part of an uncoated surface of the spectacle lens substrate. Subsequently, a hard coating composition and optionally a primer coating composition are applied to the spectacle lens substrate.

The invention provides a blown and stretched multilayer composite optical film as well as a preparation method and application thereof. The multi-layer composite optical film is prepared by adopting a film blowing and stretching process, the production efficiency is relatively high, and the productivity of a single production line is huge. According to the multi-layer composite optical film disclosed by the invention, by combining materials with different refractive indexes, propagation and reflection of light can be accurately controlled, so that the transmissivity is improved, the reflectivity is reduced, and the light is more uniformly distributed. Therefore, the multi-layer composite optical film has important application in the fields of display technology, spectacle lenses, photographic equipment and the like.

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.

1. Name of the design product: packing box. 2. Use of the design product: packing for products such as spectacle lenses. 3. Design points of the design product: combination of shape and pattern. 4. Picture or photo best indicating the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

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.

Augmented reality glasses (1) for projecting an AR image into an observation field, comprising a glasses frame (2) with a frame (3) and two temples (4) attached laterally to the frame (3), two glasses lenses (5), each mounted in the frame (3), a projection device (6) for generating and displaying images in an observation field intended for insertion, containing a light source tube (61) with at least one light source (611) for emitting at least one light beam and beam-shaping optics (612) designed to collimate and shape the at least one light beam, and a microscanner (62) for variably deflecting the at least one light beam, and a waveguide (7) attached in or on one of the glasses lenses (5),wherein the projection device (6) is mounted on or in an edge region of the frame (3) of the spectacle frame (2) or one of the spectacle lenses (5) and is thus connected to the spectacle frame (2) or the spectacle lens (5) in order to couple the at least one light beam into the waveguide (7).

A myopia progression suppression technology adapted to a wearer's relative peripheral refraction (RPR) is provided. A spectacle lens and related technologies are provided, the spectacle lens comprising: a base region that causes a light beam entering through an object-side surface to exit through an eye-side surface and converge on the retina via the eye; and a plurality of defocus regions, each of which contacts the base region and has the following characteristics: a light beam passing through at least a portion of the defocus region is incident on the retina as divergent rays, and at least one of a defocus power and a size of each defocus region is set in at least half of the defocus regions to compensate for a change in retinal spot size due to relative peripheral refraction (RPR) depending on the decentration angle of the wearer's eye.

The purpose of the present disclosure is to provide a spectacle lens evaluation method capable of evaluating brightness of a field of view through a spectacle lens which includes an anti-reflection film. A spectacle lens evaluation method according to the present disclosure is an evaluation method for a spectacle lens comprising: a spectacle lens base material having a first main surface and a second main surface; and an anti-reflection film disposed on the first main surface and / or on the second main surface of the spectacle lens base material. The method comprises: a step for, when an angle formed by an optical axis of the spectacle lens base material and entry light entering from the first main surface side is set as an angle θ, performing prescribed reflectance measurement for a plurality of angles in a range of 0-60° as said angle θ; a step for calculating a TAR (θ) and a TID (θ), which are differences in prescribed transmittances for each angle set as the angle θ; a step for obtaining a value X by summing M1 (θ) values, each of which is the product of said TAR (θ) and a prescribed DC (θ); a step for obtaining a value Y by summing M2 (θ) values, each of which is the product of said TID (θ) and said DC (θ); and a step for calculating a specific parameter obtained by dividing the value X by the value Y.

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.

A spectacle lens is disclosed that includes compound microlenses arranged in a pattern. A compound microlens includes an on-axis microlenslet and an off-axis sub-lenslet located on the on-axis microlenslet. The off-axis sub-lenslet has a different optical functionality than the on-axis microlenslet. By selecting the appropriate compound microlens design, the addition of microlenslets with sub-lenslets around the periphery of the main structure optimizes the spectacle lens for myopia prevention, vertigo prevention, or any other visual related condition.

The present disclosure addresses the problem of providing a method for producing a spectacle lens, wherein the method makes it possible to produce a spectacle lens having a topcoat layer that can suppress the occurrence of cracks and the like and that has excellent water repellent properties or hydrophilic properties. A method for producing a spectacle lens according to the present disclosure comprises: a step for bringing into contact a laminate including a spectacle lens base material and an antireflective film having an SiO2 layer on the outermost surface thereof with an alkaline solution having a pH of more than 7.0 but less than 9.8; and a step for obtaining a spectacle lens by forming a topcoat layer on the antireflective film.

An evaluation method for a spectacle lens is configured to comprise: a blur sensitivity information acquisition step for obtaining information on blur sensitivity of a wearer of spectacles; a calculation step for calculating a three-dimensional clear vision region AC in a visual field space visible to the wearer through a spectacle lens (10) of the spectacles (1) in a state where the spectacles (1) are worn by the wearer, while taking into account the sensitivity information acquired in the blur sensitivity information acquisition step; and an evaluation step for evaluating the performance of the spectacle lens on the basis of the three-dimensional clear vision region AC obtained in the calculation step.

The present invention relates to a method, a device and a computer program product configured to determine at least one value (328) of ocular aberration of at least one eye (112) of a user (114), and to an associated method configured to produce at least one spectacle lens for at least one eye of a user. Herein, the method comprises the steps of: a) providing input data (314), the input data (314) comprising: information (118, 126) comprising eye aberration and at least one geometric and optical characteristic of at least one eye (112) of a user (114) at a point in time (316); the method comprises the steps of: a) generating at least one piece of information (118, 128) comprising at least one geometric and optical characteristic of at least one eye (112) of the user (113) at a previous point in time (320), and b) generating output data (326) comprising at least one value (328) of an eye aberration of at least one eye (112) of the user (114), where the output data (326) is generated by using the information (118, 128) to determine an eye aberration of the at least one eye (112) of the user (113) at the previous point in time (320). The method comprises the steps of generating information (118, 126) and further information (128), wherein the information (118, 126) is captured in a manner (318) of non-ciliary muscle paralysis; and the further information (128) is captured under ciliary muscle paralysis (322) of at least one eye (112) of the user (114).

To provide a method for determining a lens for spectacles or a lens for contact that achieves a trunk balance.There are included step S6 of measuring a load balance or a posture of a subject to be measured, and steps S7 to S10 of determining a lens for spectacles or a lens for contact lenses on the basis of a result of the measurement of the load balance or the posture.

1. The name of this design product: Spectacle lenses (lenses with optical path difference control structure). 2. Purpose of the product of this design: Spectacle lenses used to delay the progression of myopia and correct vision. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: main view. 5. Other explanations required: The A-A sectional view is the A-A sectional view in the main view; the B-B sectional view is the B-B sectional view in the main view; the enlarged view of part C is the enlarged view of the part C in the main view; the enlarged view of part D is the enlarged view of the part D in the B-B sectional view; the enlarged view of part E is the enlarged view of the part E in the A-A sectional view.

Provided are a spectacle lens and a technique associated therewith, wherein, when λ is a wavelength, r is a ratio of a total area of defocus regions to an overall area in plan view of a portion in which a plurality of defocus regions are provided in the spectacle lens, w is an amount of progression of a wavefront in each of the defocus regions relative to a base region, an average value of cos (2πw / λ) in one defocus region is obtained in each of the plurality of defocus regions, c(λ) is a gross average of the plurality of average values, an average value of sin (2πw / λ) in one defocus region is obtained in each of the plurality of defocus regions, s(λ) is a gross average of the plurality of average values, and f(λ) is equal to {1−r+r·c(λ)}2+{s(λ)}2, a sign of {f(λ×1.01)−f(λ)} is inverted at least once when the wavelength λ is increased within a range of 0.45 μm≤λ≤0.65 μm.

The utility model discloses a VR ventilation mask which comprises a mask body and a light barrier, the mask body comprises a shell plate, a plurality of first air holes are formed in the shell plate, and the side edge of each first air hole is provided with a blocking bone extending towards the light barrier; the light barrier is arranged on the mask body and located on the inner side of the shell plate, a first ventilation gap is formed between the light barrier and the shell plate, a plurality of first ventilation holes matched with the first ventilation holes are formed in the light barrier, and the first ventilation holes and the first ventilation holes are arranged in an offset mode; wherein the first air hole, the first ventilation gap and the second air hole are communicated in sequence, so that a step-shaped first shading ventilation channel is formed. According to the utility model, the shading and ventilation performance of the VR ventilation mask can be effectively improved, and the fogging condition of the host lens and the glasses lenses can be reduced.