WO2020067028A1 - 曲面形状評価方法、眼鏡レンズの製造方法および眼鏡レンズ - Google Patents
曲面形状評価方法、眼鏡レンズの製造方法および眼鏡レンズ Download PDFInfo
- Publication number
- WO2020067028A1 WO2020067028A1 PCT/JP2019/037306 JP2019037306W WO2020067028A1 WO 2020067028 A1 WO2020067028 A1 WO 2020067028A1 JP 2019037306 W JP2019037306 W JP 2019037306W WO 2020067028 A1 WO2020067028 A1 WO 2020067028A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- defocus
- area
- spectacle lens
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/024—Methods of designing ophthalmic lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00951—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00951—Measuring, controlling or regulating
- B29D11/0098—Inspecting lenses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/025—Testing optical properties by measuring geometrical properties or aberrations by determining the shape of the object to be tested
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/24—Myopia progression prevention
Definitions
- the present invention relates to a curved surface shape evaluation method, a method for manufacturing a spectacle lens, and a spectacle lens.
- a spectacle lens that suppresses the progression of refractive error such as myopia
- a spectacle lens in which a convex surface that is an object-side surface has a curved surface different from the convex surface and a plurality of convex regions protruding from the convex surface are formed.
- the light beam that enters from the object-side surface and exits from the eyeball-side surface is focused on the retina of the wearer in principle, but the light beam that has passed through the convex region portion Focuses at a position closer to the object side than on the retina, thereby suppressing the progress of myopia.
- the present invention provides a technique that enables a spectacle lens to sufficiently exert an effect of suppressing progression of myopia or hyperopia (hereinafter, collectively referred to as refractive error) to an eyeglass lens through appropriate evaluation of a surface shape. For the purpose of providing.
- a first aspect of the present invention provides: A spectacle lens including an object-side surface and an eyeball-side surface, and having a plurality of defocus regions on at least one of the object-side surface and the eyeball-side surface.
- the data group relating to the defocus area and the data group relating to the base area are classified based on a threshold derived from the three-dimensional data.
- the threshold value is determined by approximating the three-dimensional data by the least squares method and utilizing a bearing curve for the approximation result.
- a data group is classified for each of the plurality of defocus areas.
- the three-dimensional data is divided into a data group related to a defocus area, a data group related to a base area, and a boundary near a transition area between the defocus area and the base area. And a data group related to the area.
- a sixth aspect of the present invention Including the curved surface shape evaluation method according to any one of the first to fifth aspects, This is a method for manufacturing a spectacle lens.
- the spectacle lens is manufactured by reflecting the result of determining the degree of deviation.
- An eyeglass lens comprising an object-side surface and an eyeball-side surface, and having a plurality of defocus areas on at least one of the object-side surface and the eyeball-side surface, Based on three-dimensional data obtained by measuring the surface shape of the surface having a plurality of defocus regions, while the reference shape data for the surface having a plurality of the defocus regions is specified, The degree of deviation of the three-dimensional data from the reference shape data is specified, Among the divergence degrees, the magnitude of the divergence degree with respect to the boundary vicinity area which is a transition area between the defocus area and the base area where the defocus area is not formed is determined by the protrusion height or the defocus area of the defocus area. It is a spectacle lens having a concave depth of 15% or less.
- the magnitude of the divergence is 0.1 ⁇ m or less.
- the object side surface has a defocus area, and the defocus area protrudes toward the object side.
- the eyeball-side surface has a defocus area, and the defocus area protrudes toward the eyeball.
- Another aspect of the present invention is as follows.
- “convex” is changed to “concave”
- “projection” is changed to “concave”
- “projection height” is changed to “depression depth”
- FIG. 2 is a cross-sectional view illustrating a configuration example of the spectacle lens illustrated in FIG. 1.
- FIG. 2 is a schematic cross-sectional view (part 1) illustrating a path of light transmitted through the spectacle lens illustrated in FIG. 1.
- FIG. 2 is a schematic sectional view (part 2) showing a path of light transmitted through the spectacle lens shown in FIG.
- FIG. 6 is a flowchart showing a specific procedure of cluster analysis in the evaluation method of FIG. 5.
- FIG. 4 is an explanatory diagram showing a specific example of a degree of deviation between a measured shape (actually measured shape) and a reference shape obtained by an evaluation method according to an embodiment of the present invention, and is a diagram showing a degree of deviation about a cross section of an eyeglass lens. is there.
- FIG. 3 is an explanatory diagram showing a specific example of a degree of deviation between a measured shape (actually measured shape) and a reference shape obtained by an evaluation method according to an embodiment of the present invention, and is a diagram showing the degree of deviation on a vertical section of an eyeglass lens. is there.
- FIG. 1 is a front view showing the shape of a spectacle lens to be evaluated in the present embodiment.
- FIG. 2 is a cross-sectional view showing a configuration example of the spectacle lens shown in FIG.
- FIGS. 3 and 4 are schematic cross-sectional views showing the paths of light transmitted through the spectacle lens shown in FIG.
- the spectacle lens 1 has a plurality of defocus regions 6 regularly arranged near the center of the lens.
- the “defocus area 6” in the present embodiment is an independent island-shaped area formed over 360 degrees on the outermost surface of the spectacle lens 1, and has a function of converging a light beam to a convergence position B. . That is, the defocus area 6 has a function of giving defocus in the plus or minus direction to the transmitted light flux and converging it to a position different from the light transmitted through the base portion.
- the defocus area 6 is a convex area and the spectacle lens 1 is a myopia progress suppression lens will be mainly described.
- a case will be described in which the defocus region 6 is a concave region and the spectacle lens 1 is a hyperopia progress suppression lens.
- the spectacle lens 1 has a surface 3 on the object side and a surface 4 on the eyeball side.
- the “surface on the object side” is a surface located on the object side when spectacles provided with the spectacle lens 1 are worn by a wearer.
- the “eyeball-side surface” is the opposite, that is, the surface located on the eyeball side when the spectacles provided with the spectacle lens 1 are worn by the wearer.
- the object-side surface 3 is a convex surface
- the eyeball-side surface 4 is a concave surface. That is, the spectacle lens 1 is a meniscus lens.
- the spectacle lens 1 includes a lens substrate 2, a hard coat film 8 formed on each of the convex side and the concave side of the lens substrate 2, and an anti-reflection formed on each surface of each hard coat film 8. And a film (AR film) 10.
- the spectacle lens 1 may be formed by forming another film in addition to the hard coat film 8 and the antireflection film 10.
- the lens substrate 2 is formed of a thermosetting resin material such as thiourethane, allyl, acryl, and epithio.
- a resin material forming the lens substrate 2 another resin material having a desired refractive index may be selected.
- a lens substrate made of inorganic glass may be used.
- a plurality of convex regions 6a are formed on the object-side surface (convex surface) of the lens substrate 2 so as to protrude from the surface toward the object side.
- Each convex region 6a is formed by a curved surface having a different curvature from the object-side surface of the lens substrate 2.
- the object-side surface of the lens substrate 2 is substantially circular around the center of the lens at equal intervals in the circumferential direction and the axial direction when viewed in a plan view.
- the convex regions 6a of the shape are arranged in an island shape (that is, in a state of being separated from each other without being adjacent to each other).
- the hard coat film 8 is formed using, for example, a thermoplastic resin or a UV curable resin.
- the hard coat film 8 can be formed by immersing the lens substrate 2 in a hard coat liquid, using spin coating, or the like.
- the coating of the hard coat film 8 can improve the durability of the spectacle lens 1.
- the antireflection film 10 is formed, for example, by forming an antireflection agent such as ZrO 2 , MgF 2 , and Al 2 O 3 by vacuum evaporation. By the coating of the antireflection film 10, the visibility of the image transmitted through the spectacle lens 1 can be improved.
- a plurality of convex regions 6a are formed on the object-side surface of the lens substrate 2. Therefore, when the surface is covered with the hard coat film 8 and the anti-reflection film 10, a plurality of convex regions 6b are formed by the hard coat film 8 and the anti-reflection film 10 following the convex regions 6a of the lens substrate 2. Will be done. That is, the defocus area 6 constituted by the convex area 6a and the convex area 6b is arranged on the object-side surface (convex surface) 3 of the spectacle lens 1 so as to protrude from the surface 3 toward the object side. Will be done.
- the defocus region 6 in the present embodiment follows the convex region 6a of the lens substrate 2, the defocus region 6 is convex like the convex region 6a, and extends around the center of the lens in the circumferential direction and the axial direction. They are arranged in an island shape at regular intervals, that is, in a state of being regularly arranged near the center of the lens.
- Each defocus area 6 is configured as follows, for example.
- the diameter of the defocus area 6 is preferably about 0.8 to 2.0 mm.
- the protrusion height (projection amount) of the defocus region 6 is about 0.1 to 10 ⁇ m, and preferably 0.7 to 0.9 ⁇ m.
- the protrusion height (projection amount) indicates the maximum distance in the normal direction from the base region where the defocus region is not formed.
- the radius of curvature of the defocus area 6 is preferably 50 to 250 mmR, preferably about 86 mmR. With such a configuration, the refractive power of the defocus region 6 is set to be larger than that of the region where the defocus region 6 is not formed by about 2.00 to 5.00 diopters.
- the following optical characteristics are realized by having the defocus area 6 on the object-side surface 3, and as a result, the progress of refractive error such as myopia of the spectacle wearer is achieved. Can be suppressed.
- the spectacle lens 1 As shown in FIG. 3, in the spectacle lens 1, light incident on the object-side surface 3 of a region where the defocus region 6 is not formed (hereinafter, referred to as “base region”) is emitted from the eyeball-side surface 4. After that, the eyeball 20 is focused on the retina 20A. That is, the light beam transmitted through the spectacle lens 1 is focused on the retina 20A of the spectacle wearer in principle. In other words, the curvature of the base region of the spectacle lens 1 is set according to the prescription of the spectacle wearer so that the base region is focused on the retina 20A, which is the position A on the retina, via the eye.
- the defocus area 6 converges light emitted from the eyeball-side surface 4 to a position B closer to the object side than a position A on the retina in the light traveling direction.
- the convergence position B in response to each of a plurality of defocus region 6, the position B 1, B 2, B 3, present as ⁇ ⁇ ⁇ B N.
- the spectacle lens 1 emits the light beam incident on the object-side surface 3 from the eyeball-side surface 4 in principle and converges to the position A on the retina via the eye, while the defocus region 6 Are converged at a position B (B 1 , B 2 , B 3 ,..., B N ) closer to the object side than a position A on the retina in the light traveling direction. That is, the spectacle lens 1 has a light flux converging function to the position B closer to the object side, which is different from the light flux converging function for realizing the prescription of the spectacle wearer. By having such optical characteristics, the spectacle lens 1 can exhibit the effect of suppressing the progress of myopia of the spectacle wearer.
- the surface shape should be evaluated as to whether it is formed as desired. However, it is not always easy to appropriately evaluate the surface shape of the object-side surface 3 having the defocus area 6 as described below.
- the spectacle lens 1 having the above-described configuration has the object-side surface 3 covered with the hard coat film 8 and the antireflection film 10. Therefore, on the object-side surface 3, so-called sagging occurs at the boundary between the defocus area 6 and the base area, which is the other area, and the boundary may be unclear. If the boundary is unclear, the surface shape of the defocus area 6 cannot be correctly evaluated, and as a result, the size of the sag may not be properly controlled.
- the evaluation of the surface shape is performed by comparing measured data and design data of the surface shape.
- the design data of the lens substrate 2 itself not the design data of the lens substrate 2 itself, but the design data of the surface shape after covering must be prepared. I can't say. Even if the design data after covering can be prepared, the matching process between the data portion of the defocus region 6 in the actual measurement data and the data portion of the defocus region 6 in the design data is very complicated and difficult. As a result, the surface shape of the defocus area 6 may not be correctly evaluated.
- the inventor of the present application has no need to prepare design data in advance, regardless of whether or not the object-side surface 3 is covered.
- the present inventors have devised an evaluation procedure that can correctly evaluate the surface shape of the surface 3 on the object side.
- the evaluation procedure that is, the procedure of the evaluation method according to the present embodiment
- FIG. 5 is a flowchart showing an outline of the procedure of the evaluation method according to the present embodiment.
- Step 101 in evaluating the surface shape of the object-side surface 3 of the spectacle lens 1, first, as a first step, the surface shape of the object-side surface 3 of the eyeglass lens 1 to be evaluated is measured. Then, three-dimensional data of the surface shape is obtained (Step 101, hereinafter, step is abbreviated as “S”). Acquisition of three-dimensional data may be performed using a known three-dimensional measuring device. As a result, XYZ coordinate value data obtained by measuring the Z coordinate at the same pitch on the XY coordinate with respect to the surface shape of the surface 3 on the object side is obtained as raw data (three-dimensional data).
- a threshold necessary for classification into each data group described later is determined (S102). The determination of the threshold is performed by deriving the threshold from the acquired three-dimensional data.
- the entire data is subjected to spherical approximation by, for example, the least-squares method, and so-called shape removal is performed.
- the approximation result (that is, the data after shape removal) is defocused using a calculation method of a load curve of a roughness curve (hereinafter, also referred to as a “bearing curve”), which is generally used in roughness evaluation.
- a certain height threshold value for classifying the data of the area 6 hereinafter referred to as “segment data” and the data of the base plane area (hereinafter referred to as “base plane data”) is determined.
- the vertical axis of the load curve graph takes the minimum to maximum values of the height data of the shape after shape removal, finely divides the interval, and graduates at a constant pitch. Then, for the height position indicated by each scale, a ratio at which each height data of the shape after shape removal is at a high position is obtained, the ratio is plotted on the horizontal axis of the load curve graph, and each plot point is connected.
- Load curve (bearing curve).
- the point to be connected is connected by a straight line, and the value of the height scale at which the straight line and the vertical axis intersect is determined as a height threshold (that is, a threshold derived from three-dimensional data).
- the threshold value determination is, besides the calculation method utilizing the bearing curve as described above, for example, an intermediate height between the height data minimum value and the maximum value of the shape after shape removal, for example, the minimum value and the maximum value. It is also possible to use a method in which a position at a height of about 20 to 40% from the minimum of the distance is determined based on empirical data and used as a height threshold.
- each data group to be classified includes at least a data group related to the defocus area 6 and a data group related to the base area.
- a data group related to a boundary vicinity area which will be described in detail later, is included. The specific procedure for classifying each data group using the cluster analysis will be described later in detail.
- curve fitting is performed for each of the classified data groups, and the obtained curved surface shape data is combined to obtain the object side of the spectacle lens.
- the reference shape data for the surface 3 is extracted (S104).
- the curve fitting is performed individually for each of the classified data groups. Specifically, spherical approximation is performed on the data group relating to each defocus area 6 and the data group relating to the base area by, for example, the least square method. As a result, for each of the defocus region 6 and the base region, curved surface shape data representing an approximate spherical surface is individually obtained. Then, the individual curved surface shape data obtained in this way are combined to form shape data for one surface shape.
- the shape data relating to the shape of the spectacle lens on the object side 3 on which the error component such as roughness or sag is removed that is, the reference shape
- the reference shape data is extracted as the reference shape data.
- the obtained three-dimensional data is compared with the extracted reference shape data to determine the degree of deviation of the three-dimensional data from the reference shape data (S105).
- the divergence is constituted by difference data from the reference shape data in the Z coordinate direction for each XY coordinate point of the three-dimensional data.
- the difference data may be, for example, the absolute value of the difference in the Z coordinate direction, if it is predetermined, or the absolute value of the difference in the radial direction of the curved surface in consideration of the fact that the base region is a curved surface. It may be.
- the degree of deviation from the reference shape data of the surface shape of the object-side surface 3 of the spectacle lens 1 is obtained as an evaluation result. If the degree of deviation is within a preset allowable range, the surface shape is evaluated to be appropriate. On the other hand, if the divergence is not within the preset allowable range, the surface shape is evaluated to be inappropriate.
- FIG. 6 is a flowchart showing a specific procedure of cluster analysis.
- the noise component may be removed by performing smoothing using the Z coordinate value of the surrounding coordinate points.
- the range of the three-dimensional data from which the Z coordinate value is to be extracted may be for all of the XYZ coordinate value data included in the three-dimensional data, or may be a specific trimming range (for example, if one side is a predetermined trimming range). (A rectangular area of a size).
- the Z coordinate value is compared with a threshold value (height threshold value), and it is determined whether or not the value is larger than the threshold value (S202).
- a threshold value herein.
- the Z coordinate value does not exceed the threshold value, it is located at a position that does not protrude relatively. Therefore, the XYZ coordinate value data is classified as that for the base plane area, An identification flag indicating that the data belongs to a data group constituting the surface data is linked (S203).
- the Z coordinate value exceeds the threshold value, it is located at a relatively protruding position. Therefore, the XYZ coordinate value data is classified as that for the defocus area 6, and the segment data Is associated with an identification flag indicating that the data belongs to the data group (S204).
- the XYZ coordinate value data belonging to the data group forming the segment data is further classified into which of the plurality of defocus areas 6 is related to the defocus area 6 (S205).
- the classification of the data group for each of the plurality of defocus areas (hereinafter, the defocus area is also referred to as “segment”) 6 is performed by, for example, clustering (grouping) using a k-means method (K-means).
- the XYZ coordinate value data linked as the segment data is looked at one by one, and the first XYZ coordinate value data is registered in the “first cluster” and is registered in the group (data group). It is assumed that the data belongs to XYZ coordinate value data.
- the center coordinate point of the first cluster is the XY coordinate point of the XYZ coordinate value data in a situation where there is only one XYZ coordinate value data belonging to the group.
- the distance between the XY coordinate point of the XYZ coordinate value data and the center coordinate point of the already registered cluster is obtained and registered so as to belong to the cluster having the shortest distance.
- a new cluster for example, “second cluster” is created and registered so as to belong to the new cluster.
- the XYZ coordinate value data linked as the segment data is obtained from the data group regarding any defocus area 6 without having to clarify the position of each defocus area 6 in advance. Is to be classified.
- the center of gravity of the XY coordinate point of each XYZ coordinate value data belonging to the classified cluster (that is, the cluster to which the XYZ coordinate value data is added) is calculated. (S206). Then, the center coordinate point of the cluster is updated so that the calculation result of the position of the center of gravity is set as the center coordinate point. That is, each time the XYZ coordinate value data belongs to which cluster, the center coordinate point of the cluster to which the XYZ coordinate value data is added is updated.
- boundary vicinity data Data related to a certain boundary vicinity area (hereinafter, referred to as “boundary vicinity data”) is separated from each cluster (S208).
- XYZ coordinate value data within a predetermined distance from the center coordinate point of each cluster is regarded as data belonging to the cluster, and other XYZ coordinate values
- the data is re-clustered so as to be separated from the cluster and used as data near the boundary. This is because if the classification is uniformly performed based on the height threshold as described above, the defocus area 6 and the base area may not be properly classified due to the difference in the degree of undulation of the base area around each defocus area 6. Because you get it.
- the segment data is grouped into each cluster by the above-described clustering, and the center coordinate point (for example, the center of gravity) of each cluster is obtained. If the data of an area within a predetermined distance from the center coordinate point is set as the segment data, the defocus area 6 and the base area can be appropriately and accurately classified.
- the three-dimensional data processed in the third step includes a data group for the segment data for each of the defocus areas 6 and a data for the base plane data for the base area.
- the data is classified into a group and a data group of boundary vicinity data regarding a boundary vicinity region which is a transition region between the defocus region 6 and the base region.
- FIG. 7 is an explanatory diagram schematically showing a specific example of data classification and reference shape data extraction.
- a data group of XYZ coordinate value data (see black circles in the figure) on the surface shape of the object-side surface 3 of the spectacle lens 1 is obtained.
- a threshold value (see the dashed line in the figure) from the data group, and uses the threshold value to convert each XYZ coordinate value data into base plane data (at a height position not exceeding the threshold value) and segment data (threshold value). Height position).
- the segment data is classified into which defocus area 6 (that is, which cluster it belongs to) by clustering. Further, by re-clustering, of the XYZ coordinate value data belonging to each cluster, data outside the range of a predetermined distance from the center coordinates are separated as boundary vicinity data.
- each XYZ coordinate value data constituting the raw data is composed of segment data for each of the defocus areas 6, base plane data for the base area, and boundary vicinity data for the boundary vicinity area. Classified as either.
- curve fitting is performed for each classified data group. Specifically, with respect to the base surface data, curve fitting is performed using only the base surface data to obtain curved surface shape data representing an approximate spherical surface of the base region. For the segment data, curve fitting is performed individually for each cluster (that is, for each defocus area 6) to obtain curved surface shape data representing an approximate spherical surface of each defocus area 6. Then, when the respective curved surface shape data are individually obtained, these are combined to form the shape data for one surface shape, whereby the reference shape data for the object-side surface 3 of the spectacle lens (see the solid line in the figure) is obtained. Extract.
- the reference shape data is extracted by performing the curve fitting for each of the classified data groups, for example, even if sagging occurs in the area near the boundary in the three-dimensional data, the influence of the sagging on the reference shape data is obtained. Can be eliminated. That is, in extracting the reference shape data, the extraction can be optimized.
- FIG. 8 and 9 are explanatory diagrams showing a specific example of the degree of deviation between the measured shape (actually measured shape) obtained by the evaluation method according to the present embodiment and the reference shape.
- FIG. 8 is a specific example of the degree of divergence in the cross section of the spectacle lens 1.
- FIG. 9 is a specific example of the degree of divergence in the vertical section of the spectacle lens 1.
- the divergence is constituted by difference data between the acquired three-dimensional data and the extracted reference shape data. That is, the difference between the measured shape (actually measured shape) of the object-side surface 3 of the spectacle lens 1 and the reference shape of the object-side surface 3 is determined as the degree of deviation.
- the surface shape of the object-side surface 3 of the spectacle lens 1 can be evaluated after removing the curved surface component. That is, in evaluating the shape of the spectacle lens 1, a curved surface component can be removed, and an invalid component such as a sagging portion can be visualized.
- the degree of divergence is prominently increased in a region near the boundary, and a maximum value exists. This is because when the lens substrate 2 is covered with the hard coat film 8 and the anti-reflection film 10, sagging occurs in a region near the boundary between the defocus region 6 and the base region.
- the extraction of the reference shape data is optimized through cluster analysis, curve fitting for each data group, or the like. Therefore, the boundary between the defocus region 6 and the base region becomes clear, and even if sag occurs in the region near the boundary, the surface shape of the object-side surface 3 of the spectacle lens 1 can be correctly evaluated. . In other words, in the present embodiment, the divergence degree of the portion near the boundary is correctly evaluated, and has very high reliability.
- the spectacle lens 1 It is determined whether or not the obtained degree of divergence is within a preset allowable range. Based on the determination result, it is determined whether or not the surface shape of the object-side surface 3 of the spectacle lens 1 is appropriate. .
- “appropriate” means that the spectacle lens 1 has a desired optical property, that is, the spectacle lens 1 can exert an effect of suppressing myopia progression.
- the allowable range for the degree of divergence may be set as follows. For example, if the magnitude of the divergence in the vicinity of the boundary in the divergence (that is, the maximum value of the divergence) is 15% or less of the protruding height (protruding amount) of the defocus area 6, It is determined that it is within the allowable range.
- the protrusion height of the defocus area 6 is about 0.1 to 10 ⁇ m, preferably about 0.7 to 0.9 ⁇ m
- the magnitude of the degree of deviation is about 0.015 to 1.5 ⁇ m, preferably 0.105.
- the thickness is about 0.135 ⁇ m
- the projection height of the defocus region 6 is 15% or less, which is within the allowable range.
- the magnitude of the degree of deviation is 0.1 ⁇ m or less, regardless of the protruding height of the defocus area 6, it is determined that the deviation is within the allowable range.
- the surface shape of the region near the boundary adversely affects the optical characteristics of the spectacle lens 1. Can be suppressed. That is, even if the spectacle lens 1 is coated with the object side surface 3 by appropriately controlling the size of the sag in the region near the boundary so that the degree of divergence falls within the above range, the desired optical characteristics can be obtained. Can be obtained.
- the reference shape data for the object-side surface 3 is specified based on the three-dimensional data obtained by measuring the surface shape of the object-side surface 3.
- the degree of divergence of the three-dimensional data from the reference shape data is specified, and among the specified degrees of divergence, the magnitude of the degree of divergence in the area near the boundary between the defocus area 6 and the base area is determined by the defocus.
- the projection is configured to be 15% or less of the projection height of the region 6 in order to have desired optical characteristics and exhibit the effect of suppressing myopia progression.
- the spectacle lens 1 is configured so that the magnitude of the degree of divergence in the vicinity of the boundary is 0.1 ⁇ m or less. If the magnitude of the divergence is 0.1 ⁇ m or less, the spectacle lens 1 is surely desired irrespective of the projection height of the defocus region 6 and regardless of the thickness of the hard coat film 8 or the antireflection film 10. This is because it becomes possible to exhibit the effect of suppressing myopia progression by having the above optical characteristics.
- the lens substrate 2 is molded by a known molding method such as casting polymerization.
- a lens base 2 having a defocus region 6 on at least one surface is obtained by performing molding by casting polymerization using a molding die having a molding surface provided with a plurality of concave portions.
- a hard coat film 8 is formed on the surface of the lens substrate 2.
- the hard coat film 8 can be formed by immersing the lens substrate 2 in a hard coat liquid, using spin coating, or the like.
- an antireflection film 10 is further formed on the surface of the hard coat film 8.
- the hard coat film 8 can be formed by forming an antireflection agent by vacuum evaporation. According to the manufacturing method of such a procedure, the spectacle lens 1 having the plurality of defocus regions 6 protruding toward the object side on the object side surface 3 is obtained.
- the manufacturing method in the present embodiment includes the curved surface shape evaluation method of the above-described procedure. That is, the divergence is obtained through the above-described first to fifth steps. Then, the spectacle lens 1 is manufactured by reflecting the result of calculating the degree of deviation.
- the degree of deviation of the test lens is determined. If the degree of deviation is out of an allowable range, the conditions for forming the hard coat film 8 or the antireflection film 10 are determined. Change and make a test lens again. If the divergence is within the allowable range, the spectacle lens 1 as a product version is created under the same conditions as the test lens. As described above, if the creation is performed by reflecting the result of the divergence, the spectacle lens 1 having the divergence within the allowable range can be obtained.
- the present invention is not limited to this.
- the degree of deviation is reflected by performing the modification processing so as to fall within the allowable range. It may be.
- the reference shape data is extracted based on the three-dimensional data that is the measurement result of the surface shape, and the degree of deviation of the three-dimensional data from the reference shape data is obtained. Even in the case of evaluation, design data on the surface shape is not required. That is, since the surface shape can be evaluated without depending on the design data, for example, even in the case of the spectacle lens 1 in which the object side surface 3 is coated, the surface shape can be correctly evaluated. Since the reference shape data is extracted by performing curve fitting for each data group classified by using the cluster analysis, there is no need for design data, and no matching (matching) with the design data is required. Can be specified.
- the influence of the sag can be excluded from the reference shape data. Furthermore, it is also possible to clearly specify the boundary between the defocus area 6 and the base area from the result of the classification using the cluster analysis. Therefore, it is very suitable especially for correctly evaluating the area near the boundary between the defocus area 6 and the base area. Since the sag does not affect the reference shape data, the magnitude of the sag occurring in the three-dimensional data can be correctly evaluated by calculating the degree of deviation between the three-dimensional data and the reference shape data. By using the index “degree of deviation”, the surface shape of the object-side surface 3 of the spectacle lens 1 can be evaluated after removing the curved surface component.
- a curved surface component can be removed, and an invalid component such as a sagging portion can be visualized.
- the surface shape of the spectacle lens 1 having the defocus area 6 can be correctly evaluated, and as a result, the size of the sag can be appropriately controlled. Therefore, according to the present embodiment, it is possible to cause the spectacle lens 1 to sufficiently exhibit the effect of suppressing myopia progress through appropriate evaluation of the surface shape.
- the data group relating to the defocus area 6 and the data group relating to the base area are classified based on a threshold derived from the three-dimensional data.
- a threshold derived from the three-dimensional data that is, the measurement result
- the threshold is adapted to the actual evaluated surface.
- the evaluation of the surface shape can be made appropriate through the above classification. For example, even if the spectacle lens 1 to be measured is installed in an inclined state, the influence of the inclination can be eliminated.
- (C) In the present embodiment, three-dimensional data approximated by the least squares method, and a threshold determined using a bearing curve for the approximation result is used as the threshold. As described above, by determining the threshold value by using the bearing curve, the threshold value is very suitable when applied to the surface shape analysis of the spectacle lens 1 having the plurality of defocus areas 6 on the object side surface 3. It will be.
- the data groups for each of the plurality of defocus areas 6 are classified using the k-means method.
- the present invention is particularly applied to the surface shape analysis of the spectacle lens 1 arranged on the object-side surface 3 such that a large number of defocus areas 6 are arranged. It is very suitable.
- the three-dimensional data in the step of classifying the three-dimensional data into each data group, is divided into a data group relating to the defocus area 6, a data group relating to the base area, and a data group relating to the area near the boundary. , Classified into. As described above, if the data group relating to the boundary vicinity area is also classified, the range of the boundary vicinity area becomes clear, and thus it is very suitable for correctly evaluating the sag occurring in the boundary vicinity area. Becomes
- the result of determining the degree of deviation is reflected in the manufacture of the spectacle lens 1.
- the spectacle lens 1 having the degree of divergence within the allowable range can be reliably obtained.
- the magnitude of the degree of divergence in the region near the boundary between the defocus region 6 and the base region is 15% or less of the projection height of the defocus region 6, Preferably, it is 0.1 ⁇ m or less.
- the degree of deviation of the region near the boundary is suppressed to 15% or less or 0.1 ⁇ m or less of the projection height of the defocus region 6, the surface shape of the region near the boundary adversely affects the optical characteristics of the spectacle lens 1. Can be suppressed. That is, even if the spectacle lens 1 is coated with the object side surface 3 by appropriately controlling the size of the sag in the region near the boundary so that the degree of divergence falls within the above range, the desired optical characteristics can be obtained.
- a spectacle lens having a coated surface has been described as an example.
- the evaluation method according to the present invention and the allowable range of the degree of divergence obtained by the evaluation method whether or not the coating is used is considered. It is possible to apply without (ie even uncoated spectacle lenses).
- the defocus area 6 has a function of converging the light flux to a position B ′ that is farther from the object side than the position A on the retina in the traveling direction of the light (that is, a position B ′ that is deeper than the position A). Is configured.
- the lens substrate 2 is also provided with the function of suppressing the progress of hyperopia, the “convex” of the substrate convex portion 2 a is changed to “concave”.
- SYMBOLS 1 spectacle lens, 2 ... lens base material, 3 ... object side surface, 4 ... eyeball side surface, 6 ... defocus area, 6a, 6b ... convex area, 8 ... hard coat film, 10 ... antireflection film , 20 ... eyeball, 20A ... retina
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Eyeglasses (AREA)
Abstract
Description
本発明の第1の態様は、
物体側の面および眼球側の面を備え、且つ、複数のデフォーカス領域を物体側の面および眼球側の面の少なくともいずれかの面に有する眼鏡レンズについて、当該眼鏡レンズにおいて複数のデフォーカス領域を有する面の表面形状を測定して当該表面形状の三次元データを取得する工程と、
三次元データに対するクラスタ分析を行って、複数のデフォーカス領域のそれぞれに関するデータ群とデフォーカス領域が形成されていない領域であるベース領域に関するデータ群とを分類する工程と、
分類したデータ群毎にカーブフィッティングを行って得られた曲面形状データを組み合わせて、眼鏡レンズの物体側の面についての基準形状データを抽出する工程と、
三次元データと基準形状データとを比較して、三次元データの基準形状データからの乖離度を求める工程と、
を備える曲面形状評価方法である。
デフォーカス領域に関するデータ群と、ベース領域に関するデータ群とを、三次元データから導出された閾値に基づいて分類する。
閾値は、三次元データを最小二乗法で近似し、その近似結果についてのベアリング曲線を活用して決定したものである。
k平均法を利用して、複数のデフォーカス領域のそれぞれに関するデータ群の分類を行う。
三次元データを各データ群に分類する工程では、三次元データを、デフォーカス領域に関するデータ群と、ベース領域に関するデータ群と、デフォーカス領域と前記ベース領域との間の遷移領域である境界近傍領域に関するデータ群と、に分類する。
第1から第5のいずれかの1態様に記載の曲面形状評価方法を含む、
眼鏡レンズの製造方法である。
乖離度を求めた結果を反映させて前記眼鏡レンズの製造を行う。
物体側の面および眼球側の面を備え、且つ、複数のデフォーカス領域を前記物体側の面および前記眼球側の面の少なくともいずれかの面に有する眼鏡レンズであって、
複数の前記デフォーカス領域を有する面の表面形状を測定して得られる三次元データに基づいて、複数の前記デフォーカス領域を有する面についての基準形状データが特定されているとともに、
三次元データの基準形状データからの乖離度が特定されており、
乖離度のうち、デフォーカス領域とデフォーカス領域が形成されていない領域であるベース領域との間の遷移領域である境界近傍領域に関する乖離度の大きさが、デフォーカス領域の突出高さまたは陥凹深さの15%以下である
眼鏡レンズである。
前記乖離度の大きさが0.1μm以下である。
物体側の面がデフォーカス領域を有し、デフォーカス領域は物体側に向けて突出する。
眼球側の面がデフォーカス領域を有し、デフォーカス領域は眼球側に向けて突出する。
この両態様を組み合わせ、両面がデフォーカス領域を有してもよい。
眼鏡レンズにおいて、「凸」を「凹」に変更し、「突出」を「陥凹」に変更し、「突出高さ」を「陥凹深さ」に変更し、網膜上の位置Aよりも物体側から離れた位置B’に収束するよう記載を変更すれば、遠視進行抑制機能を奏する。
まず、本実施形態で例に挙げる眼鏡レンズの構成について説明する。
図1は、本実施形態における評価対象の眼鏡レンズの形状を示す正面図である。図2は、図1に示す眼鏡レンズの構成例を示す断面図である。図3および図4は、図1に示す眼鏡レンズを透過する光の経路を示す概略断面図である。
図1に示すように、眼鏡レンズ1は、レンズ中心の近傍に規則的に配列された複数のデフォーカス領域6を有する。
レンズ基材2は、例えば、チオウレタン、アリル、アクリル、エピチオ等の熱硬化性樹脂材料によって形成されている。なお、レンズ基材2を構成する樹脂材料としては、所望の屈折度が得られる他の樹脂材料を選択してもよい。また、樹脂材料ではなく、無機ガラス製のレンズ基材としてもよい。
ハードコート膜8は、例えば、熱可塑性樹脂またはUV硬化性樹脂を用いて形成されている。ハードコート膜8は、ハードコート液にレンズ基材2を浸漬させる方法や、スピンコート等を使用することにより、形成することができる。このようなハードコート膜8の被覆によって、眼鏡レンズ1の耐久性向上が図れるようになる。
反射防止膜10は、例えば、ZrO2、MgF2、Al2O3等の反射防止剤を真空蒸着により成膜することにより、形成されている。このような反射防止膜10の被覆によって、眼鏡レンズ1を透した像の視認性向上が図れるようになる。
上述したように、レンズ基材2の物体側の面には、複数の凸状領域6aが形成されている。したがって、その面をハードコート膜8および反射防止膜10によって被覆すると、レンズ基材2における凸状領域6aに倣って、ハードコート膜8および反射防止膜10によっても複数の凸状領域6bが形成されることになる。つまり、眼鏡レンズ1の物体側の面(凸面)3には、当該面3から物体側に向けて突出するように、凸状領域6aおよび凸状領域6bによって構成されるデフォーカス領域6が配置されることになる。
以上のような構成の眼鏡レンズ1では、物体側の面3にデフォーカス領域6を有することで、以下のような光学特性が実現され、その結果として眼鏡装用者の近視等の屈折異常の進行を抑制することができる。
次に、上述した構成の眼鏡レンズ1の表面形状を評価する手順、すなわち本実施形態に係る曲面形状評価方法の手順の一例について、具体的に説明する。
上述した構成の眼鏡レンズ1において、近視進行抑制効果を十分に発揮させるためには、物体側の面3および眼球側の面4の表面形状、特にデフォーカス領域6を有する物体側の面3の表面形状について、所望のとおりに形成されているか否かを評価すべきである。しかしながら、デフォーカス領域6を有する物体側の面3の表面形状を適切に評価することは、以下に述べるように、必ずしも容易ではない。
図5は、本実施形態に係る評価方法の手順の概要を示すフロー図である。
続いて、第3の工程におけるクラスタ分析を活用した各データ群への分類について、具体的な手順を説明する。
図6は、クラスタ分析の具体的な手順を示すフロー図である。
ここで、第3の工程での各データ群への分類と、第4の工程での基準形状データの抽出とについて、具体例を挙げて説明する。
図7は、データ分類および基準形状データ抽出の具体例を模式的に示す説明図である。
次に、上述した手順の評価方法による評価結果である乖離度について、具体例を挙げて説明する。
図8および図9は、本実施形態に係る評価方法によって得られる測定形状(実測形状)と基準形状との乖離度の一具体例を示す説明図である。図8は、眼鏡レンズ1の横断面についての乖離度の具体例である。また、図9は、眼鏡レンズ1の縦断面についての乖離度の具体例である。
次に、上述した構成の眼鏡レンズ1の製造方法について説明する。
そして、レンズ基材2を得たら、次いで、そのレンズ基材2の表面に、ハードコート膜8を成膜する。ハードコート膜8は、ハードコート液にレンズ基材2を浸漬させる方法や、スピンコート等を使用することにより、形成することができる。
ハードコート膜8を成膜したら、さらに、そのハードコート膜8の表面に、反射防止膜10を成膜する。ハードコート膜8は、反射防止剤を真空蒸着により成膜することにより、形成することができる。
このような手順の製造方法により、物体側に向けて突出する複数のデフォーカス領域6を物体側の面3に有する眼鏡レンズ1が得られる。
本実施形態によれば、以下に示す1つまたは複数の効果が得られる。
クラスタ分析を利用して分類したデータ群毎にカーブフィッティングを行って基準形状データを抽出するので、設計データを要することなく、また設計データとのマッチング(整合)を要することもなく、基準形状データを特定することが可能となる。また、測定した三次元データにダレが生じていても、基準形状データについては、そのダレの影響を排除することができる。さらには、クラスタ分析を利用した分類の結果から、デフォーカス領域6とベース領域との境界部分を明確に特定することも可能となる。したがって、特にデフォーカス領域6とベース領域との間の境界近傍領域を正しく評価する上で、非常に好適なものとなる。
基準形状データにはダレの影響が及ばないので、三次元データと基準形状データとの乖離度を求めることで、その三次元データに生じているダレの大きさを正しく評価することができる。
「乖離度」という指標を用いることで、眼鏡レンズ1の物体側の面3の表面形状について、曲面成分を除去した上で評価を行うことができる。つまり、眼鏡レンズ1の形状評価にあたり、曲面成分を除去して、ダレが生じている部分等の無効成分を見える化することができる。
以上のように、本実施形態では、デフォーカス領域6を有する眼鏡レンズ1の表面形状を正しく評価することができ、その結果としてダレの大きさを適切にコントロールすることができる。したがって、本実施形態によれば、表面形状の適切な評価を通じて、眼鏡レンズ1に近視進行抑制効果を十分に発揮させることが可能になる。
このことは、「乖離度」という指標を用いたこと、すなわち眼鏡レンズ1の物体側の面3の表面形状の曲面成分を除去して、ダレが生じている部分等の無効成分を見える化することによって、実現が可能となるものである。
以上に本発明の実施形態を説明したが、上述した開示内容は、本発明の例示的な実施形態を示すものである。すなわち、本発明の技術的範囲は、上述の例示的な実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
Claims (9)
- 物体側の面および眼球側の面を備え、且つ、複数のデフォーカス領域を物体側の面および前記眼球側の面の少なくともいずれかの面に有する眼鏡レンズについて、当該眼鏡レンズにおいて複数の前記デフォーカス領域を有する面の表面形状の三次元データを取得する工程と、
前記三次元データに対するクラスタ分析を行って、複数の前記デフォーカス領域のそれぞれに関するデータ群と前記デフォーカス領域が形成されていない領域であるベース領域に関するデータ群とを分類する工程と、
分類したデータ群毎にカーブフィッティングを行って得られた曲面形状データを組み合わせて、前記眼鏡レンズの物体側の面についての基準形状データを抽出する工程と、
前記三次元データと前記基準形状データとを比較して、前記三次元データの前記基準形状データからの乖離度を求める工程と、
を備える曲面形状評価方法。 - 前記デフォーカス領域に関するデータ群と、前記ベース領域に関するデータ群とを、前記三次元データから導出された閾値に基づいて分類する
請求項1に記載の曲面形状評価方法。 - 前記閾値は、前記三次元データを最小二乗法で近似し、その近似結果についてのベアリング曲線を活用して決定したものである
請求項2に記載の曲面形状評価方法。 - k平均法を利用して、複数の前記デフォーカス領域のそれぞれに関するデータ群の分類を行う
請求項1から3のいずれか1項に記載の曲面形状評価方法。 - 前記三次元データを各データ群に分類する工程では、前記三次元データを、前記デフォーカス領域に関するデータ群と、前記ベース領域に関するデータ群と、前記デフォーカス領域と前記ベース領域との間の遷移領域である境界近傍領域に関するデータ群と、に分類する
請求項1から4のいずれか1項に記載の曲面形状評価方法。 - 請求項1から5のいずれか1項に記載の曲面形状評価方法を含む
眼鏡レンズの製造方法。 - 前記乖離度を求めた結果を反映させて前記眼鏡レンズの製造を行う
請求項6に記載の眼鏡レンズの製造方法。 - 物体側の面および眼球側の面を備え、且つ、複数のデフォーカス領域を前記物体側の面および前記眼球側の面の少なくともいずれかの面に有する眼鏡レンズであって、
複数の前記デフォーカス領域を有する面の表面形状を測定して得られる三次元データに基づいて、複数の前記デフォーカス領域を有する面についての基準形状データが特定されているとともに、
前記三次元データの前記基準形状データからの乖離度が特定されており、
前記乖離度のうち、前記デフォーカス領域と前記デフォーカス領域が形成されていない領域であるベース領域との間の遷移領域である境界近傍領域に関する乖離度の大きさが、前記デフォーカス領域の突出高さまたは陥凹深さの15%以下である
眼鏡レンズ。 - 前記乖離度の大きさが0.1μm以下である
請求項8に記載の眼鏡レンズ。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/279,755 US11934042B2 (en) | 2018-09-28 | 2019-09-24 | Curved face shape evaluation method, eyeglass lens manufacturing method, and eyeglass lens |
| CN201980055260.XA CN112602009B (zh) | 2018-09-28 | 2019-09-24 | 曲面形状评估方法、眼镜镜片的制造方法以及眼镜镜片 |
| EP19867916.9A EP3859438B1 (en) | 2018-09-28 | 2019-09-24 | Curved face shape evaluation method, eyeglass lens manufacturing method, and eyeglass lens |
| JP2020549227A JP7181306B2 (ja) | 2018-09-28 | 2019-09-24 | 曲面形状評価方法、眼鏡レンズの製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018184811 | 2018-09-28 | ||
| JP2018-184811 | 2018-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020067028A1 true WO2020067028A1 (ja) | 2020-04-02 |
Family
ID=69952124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/037306 Ceased WO2020067028A1 (ja) | 2018-09-28 | 2019-09-24 | 曲面形状評価方法、眼鏡レンズの製造方法および眼鏡レンズ |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11934042B2 (ja) |
| EP (1) | EP3859438B1 (ja) |
| JP (1) | JP7181306B2 (ja) |
| CN (1) | CN112602009B (ja) |
| WO (1) | WO2020067028A1 (ja) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3896499A1 (en) * | 2020-04-17 | 2021-10-20 | Essilor International | Improved method for forming an optical article comprising microlenses |
| WO2021209527A1 (en) * | 2020-04-17 | 2021-10-21 | Essilor International | Lens with surface microstructures encapsulated by a thick low refractive index hard coat |
| JP2023513316A (ja) * | 2020-02-12 | 2023-03-30 | ンタルミック ホールディング ピーティーワイ エルティーディ | 補助的光学素子を有する眼鏡レンズ |
| WO2023166822A1 (ja) | 2022-03-03 | 2023-09-07 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、眼鏡レンズの製造方法、眼鏡レンズの設計方法、眼鏡及び眼鏡の製造方法 |
| WO2023171061A1 (ja) | 2022-03-07 | 2023-09-14 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、および眼鏡レンズの設計方法 |
| WO2023189088A1 (ja) | 2022-03-28 | 2023-10-05 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズおよび眼鏡レンズの設計方法 |
| WO2023188558A1 (ja) | 2022-03-29 | 2023-10-05 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズおよび眼鏡レンズの設計方法 |
| WO2024019070A1 (ja) | 2022-07-19 | 2024-01-25 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズの設計方法、眼鏡レンズの製造方法、眼鏡レンズ及び眼鏡 |
| WO2024019071A1 (ja) | 2022-07-19 | 2024-01-25 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズの設計方法、眼鏡レンズの製造方法、眼鏡レンズ及び眼鏡 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216310444U (zh) * | 2018-03-01 | 2022-04-15 | 依视路国际公司 | 镜片元件 |
| BR202019004173Y1 (pt) * | 2018-03-01 | 2024-02-20 | Essilor International | Dispositivo óptico |
| EP4500267A1 (en) | 2022-03-25 | 2025-02-05 | Essilor International | Lens element |
| EP4390518A1 (en) * | 2022-12-21 | 2024-06-26 | Essilor International | Spectacle lens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015503769A (ja) * | 2011-12-25 | 2015-02-02 | グローバル−オーケー ヴィジョン, インコーポレーテッド | 多焦点光学レンズ |
| JP2016051180A (ja) * | 2014-08-29 | 2016-04-11 | ジョンソン・アンド・ジョンソン・ビジョン・ケア・インコーポレイテッドJohnson & Johnson Vision Care, Inc. | 近視の進行の防止及び/又は遅延のための自由形式レンズの設計及び方法 |
| US20170013567A1 (en) | 2014-03-14 | 2017-01-12 | Omron Corporation | Communication status output apparatus, communication status output method, communication status output program, and transmission module |
| WO2019124352A1 (ja) * | 2017-12-19 | 2019-06-27 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ製造方法および眼鏡レンズ |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034800A1 (en) | 1994-06-14 | 1995-12-21 | Visionix Ltd. | Apparatus for mapping optical elements |
| JP2000122996A (ja) * | 1998-10-12 | 2000-04-28 | Nippon Steel Corp | ワーク成形面の形状不良評価方法 |
| JP5489392B2 (ja) * | 2007-05-09 | 2014-05-14 | オリンパス株式会社 | 光学系評価装置、光学系評価方法および光学系評価プログラム |
| US20090002574A1 (en) * | 2007-06-29 | 2009-01-01 | Samsung Electronics Co., Ltd. | Method and a system for optical design and an imaging device using an optical element with optical aberrations |
| DE102011113138B4 (de) * | 2011-04-14 | 2013-06-06 | Inb Vision Ag | Vorrichtung und Verfahren zur Vermessung von Oberflächen |
| US9201250B2 (en) * | 2012-10-17 | 2015-12-01 | Brien Holden Vision Institute | Lenses, devices, methods and systems for refractive error |
| DE102013208090B4 (de) * | 2013-05-02 | 2020-09-03 | Carl Zeiss Vision International Gmbh | Verfahren und Vorrichtung für die Brillenglas-Qualitätskontrolle sowie Computerprogramm |
| CN104678572B (zh) * | 2013-11-29 | 2018-04-27 | 豪雅镜片泰国有限公司 | 眼镜片 |
| DE102014222628A1 (de) * | 2014-11-05 | 2016-05-12 | Carl Zeiss Vision International Gmbh | Vermessen der Topografie und/oder des Gradienten und/oder der Krümmung einer das Licht reflektierenden Fläche eines Brillenglases |
| DE102015108839A1 (de) * | 2015-06-03 | 2016-12-08 | Rodenstock Gmbh | Verfahren zum Bestimmen von Oberflächendaten und/oder Messdaten einer Oberfläche eines zumindest teilweise transparenten Objekts |
| US10268050B2 (en) * | 2015-11-06 | 2019-04-23 | Hoya Lens Thailand Ltd. | Spectacle lens |
| US20200096789A1 (en) * | 2017-02-06 | 2020-03-26 | Nicole Barendse | Optical Aid |
| CN107091627B (zh) * | 2017-04-18 | 2020-07-28 | 复旦大学 | 一种多表面系统的综合测量与评估方法 |
-
2019
- 2019-09-24 WO PCT/JP2019/037306 patent/WO2020067028A1/ja not_active Ceased
- 2019-09-24 CN CN201980055260.XA patent/CN112602009B/zh active Active
- 2019-09-24 EP EP19867916.9A patent/EP3859438B1/en active Active
- 2019-09-24 JP JP2020549227A patent/JP7181306B2/ja active Active
- 2019-09-24 US US17/279,755 patent/US11934042B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015503769A (ja) * | 2011-12-25 | 2015-02-02 | グローバル−オーケー ヴィジョン, インコーポレーテッド | 多焦点光学レンズ |
| US20170013567A1 (en) | 2014-03-14 | 2017-01-12 | Omron Corporation | Communication status output apparatus, communication status output method, communication status output program, and transmission module |
| JP2016051180A (ja) * | 2014-08-29 | 2016-04-11 | ジョンソン・アンド・ジョンソン・ビジョン・ケア・インコーポレイテッドJohnson & Johnson Vision Care, Inc. | 近視の進行の防止及び/又は遅延のための自由形式レンズの設計及び方法 |
| WO2019124352A1 (ja) * | 2017-12-19 | 2019-06-27 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ製造方法および眼鏡レンズ |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3859438A4 |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023513316A (ja) * | 2020-02-12 | 2023-03-30 | ンタルミック ホールディング ピーティーワイ エルティーディ | 補助的光学素子を有する眼鏡レンズ |
| JP2025105608A (ja) * | 2020-02-12 | 2025-07-10 | ンタルミック ホールディング ピーティーワイ エルティーディ | 補助的光学素子を有する眼鏡レンズ |
| US12321046B2 (en) | 2020-02-12 | 2025-06-03 | Nthalmic Holding Pty Ltd | Spectacle lenses with auxiliary optical elements |
| WO2021209527A1 (en) * | 2020-04-17 | 2021-10-21 | Essilor International | Lens with surface microstructures encapsulated by a thick low refractive index hard coat |
| WO2021209556A1 (en) * | 2020-04-17 | 2021-10-21 | Essilor International | Improved method for forming an optical article comprising microlenses |
| CN115398279A (zh) * | 2020-04-17 | 2022-11-25 | 依视路国际公司 | 用于形成包括微透镜的光学制品的改进方法 |
| EP3896499A1 (en) * | 2020-04-17 | 2021-10-20 | Essilor International | Improved method for forming an optical article comprising microlenses |
| KR20240134176A (ko) | 2022-03-03 | 2024-09-06 | 호야 렌즈 타일랜드 리미티드 | 안경 렌즈, 안경 렌즈의 제조 방법, 안경 렌즈의 설계 방법, 안경 및 안경의 제조 방법 |
| WO2023166822A1 (ja) | 2022-03-03 | 2023-09-07 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、眼鏡レンズの製造方法、眼鏡レンズの設計方法、眼鏡及び眼鏡の製造方法 |
| WO2023171061A1 (ja) | 2022-03-07 | 2023-09-14 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、および眼鏡レンズの設計方法 |
| WO2023189088A1 (ja) | 2022-03-28 | 2023-10-05 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズおよび眼鏡レンズの設計方法 |
| WO2023188558A1 (ja) | 2022-03-29 | 2023-10-05 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズおよび眼鏡レンズの設計方法 |
| KR20240168449A (ko) | 2022-07-19 | 2024-11-29 | 호야 렌즈 타일랜드 리미티드 | 안경 렌즈의 설계 방법, 안경 렌즈의 제조 방법, 안경 렌즈 및 안경 |
| KR20240168448A (ko) | 2022-07-19 | 2024-11-29 | 호야 렌즈 타일랜드 리미티드 | 안경 렌즈의 설계 방법, 안경 렌즈의 제조 방법, 안경 렌즈 및 안경 |
| WO2024019071A1 (ja) | 2022-07-19 | 2024-01-25 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズの設計方法、眼鏡レンズの製造方法、眼鏡レンズ及び眼鏡 |
| WO2024019070A1 (ja) | 2022-07-19 | 2024-01-25 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズの設計方法、眼鏡レンズの製造方法、眼鏡レンズ及び眼鏡 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3859438B1 (en) | 2026-04-01 |
| CN112602009A (zh) | 2021-04-02 |
| CN112602009B (zh) | 2022-09-02 |
| US20220035177A1 (en) | 2022-02-03 |
| JP7181306B2 (ja) | 2022-11-30 |
| US11934042B2 (en) | 2024-03-19 |
| EP3859438A1 (en) | 2021-08-04 |
| JPWO2020067028A1 (ja) | 2021-08-30 |
| EP3859438A4 (en) | 2022-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020067028A1 (ja) | 曲面形状評価方法、眼鏡レンズの製造方法および眼鏡レンズ | |
| US11326875B2 (en) | Method, device and storage medium for evaluating production precision of spectacle lens | |
| KR102589427B1 (ko) | 안경 렌즈의 평가 방법 및 안경 렌즈 | |
| US20250258388A1 (en) | Ophthalmological lens | |
| KR20190102298A (ko) | 가변 굴절률을 갖는 프로그레시브 안경 렌즈 및 이의 설계 및 제조를 위한 방법 | |
| CN109407341A (zh) | 一种减少旁中心远视离焦的硬性接触镜片及其制造方法 | |
| JP7366673B2 (ja) | 光学特性評価方法および眼鏡レンズの製造方法 | |
| TW202146981A (zh) | 眼鏡鏡片 | |
| US20250180927A1 (en) | Eyeglass lens and eyeglass lens design method | |
| KR20220100070A (ko) | 안경 렌즈 | |
| JP2009180674A (ja) | 眼鏡レンズ外観検査用欠陥限度見本具およびその製造方法 | |
| WO2021010984A1 (en) | Bifocal spectacle lens, computer implemented method for creating a numerical representation of same, computer program, data processing system, and non-volatile computer readable storage medium | |
| CN114730079B (zh) | 用于确定光学镜片的方法 | |
| CN209103028U (zh) | 一种减少旁中心远视离焦的硬性接触镜片 | |
| JP6286643B2 (ja) | 加工誤差を低減するための加工条件設定方法 | |
| US20240319520A1 (en) | Spectacle lens and method for designing same | |
| KR101809839B1 (ko) | 렌즈 성형 시스템 및 방법 | |
| JP2026059126A (ja) | 眼鏡レンズ及びその製造方法、レンズブランク及びその製造方法、金型及びその製造方法、金型の補正方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19867916 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2020549227 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2019867916 Country of ref document: EP Effective date: 20210428 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2019867916 Country of ref document: EP |