[go: up one dir, main page]

WO2025205490A1 - Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes - Google Patents

Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes

Info

Publication number
WO2025205490A1
WO2025205490A1 PCT/JP2025/011190 JP2025011190W WO2025205490A1 WO 2025205490 A1 WO2025205490 A1 WO 2025205490A1 JP 2025011190 W JP2025011190 W JP 2025011190W WO 2025205490 A1 WO2025205490 A1 WO 2025205490A1
Authority
WO
WIPO (PCT)
Prior art keywords
clear vision
eyeglass
lens
area
vision area
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.)
Pending
Application number
PCT/JP2025/011190
Other languages
English (en)
Japanese (ja)
Inventor
好徳 吉田
謙 宮崎
成鎮 趙
直志 相川
杏菜 野中
大樹 白山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Essilor Co Ltd
Original Assignee
Nikon Essilor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nikon Essilor Co Ltd filed Critical Nikon Essilor Co Ltd
Publication of WO2025205490A1 publication Critical patent/WO2025205490A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00—Assembling; Repairing; Cleaning
    • 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
    • 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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive

Definitions

  • the present invention relates to a method for evaluating eyeglass lenses, a method for designing and selecting eyeglass lenses based on that evaluation, and a method for manufacturing eyeglass lenses based on these design and selection methods.
  • Patent Document 1 Patent Document 2
  • Patent Document 3 Patent Document 3
  • Eyeglass lenses are designed and manufactured based on the results of testing the wearer's visual ability, but there is a problem in that it is difficult to evaluate whether eyeglass lenses designed and manufactured in this way are suitable for the wearer.
  • the present invention aims to provide a new method for evaluating eyeglass lenses, a design method and selection method for creating eyeglass lenses that are suitable for the wearer based on this evaluation, and a method for manufacturing eyeglass lenses based on this design method and selection method.
  • the eyeglass lens evaluation method of the present invention comprises a contrast sensitivity information acquisition step of obtaining information related to the contrast sensitivity of the eyeglass wearer, a calculation step of calculating the three-dimensional clear vision area within the visual field seen through the eyeglass lenses of the eyeglasses when the wearer is wearing the eyeglasses, taking into account the contrast sensitivity information obtained in the contrast sensitivity information acquisition step, and an evaluation step of evaluating the performance of the eyeglass lens based on the three-dimensional clear vision area obtained in the calculation step.
  • the eyeglass lens selection method includes a selection step of selecting an appropriate eyeglass lens design from a plurality of eyeglass lens designs prepared in advance, based on the evaluation in the evaluation step.
  • the method for manufacturing eyeglass lenses according to the present invention includes a step of manufacturing eyeglass lenses based on the modified design obtained in the above design step.
  • the method for manufacturing eyeglass lenses according to the present invention includes a step of manufacturing eyeglass lenses based on the selection made in the above-mentioned selection step.
  • Another spectacle lens evaluation method comprises a contrast sensitivity information acquisition step for obtaining information related to the contrast sensitivity of a spectacle wearer; a calculation step for calculating a three-dimensional clear vision area within the visual field seen through the spectacle lenses of the spectacle while the wearer is wearing the spectacle, taking into account the contrast sensitivity information obtained in the contrast sensitivity information acquisition step; a visible area detection step for detecting a visible area where the three-dimensional clear vision area obtained in the calculation step overlaps with a visual object present in the visual field when the wearer views the visual object through the spectacle lens; and an evaluation step for evaluating the performance of the spectacle lens based on the detected visible area.
  • the eyeglass lens design method according to the present invention includes a design step in which the design of the eyeglass lens is modified based on the evaluation performed in the evaluation step of the other eyeglass lens evaluation method described above.
  • the eyeglass lens selection method includes a selection step of selecting an appropriate eyeglass lens design from a plurality of eyeglass lens designs prepared in advance, based on the evaluation performed in the evaluation step of the other eyeglass lens evaluation method described above.
  • the method for manufacturing eyeglass lenses according to the present invention includes a step of manufacturing eyeglass lenses based on the modified design obtained in the above design step.
  • FIG. 10 is a reference diagram showing an example of a table to be presented to a subject in contrast sensitivity measurement.
  • 10 is a graph showing an example of a contrast sensitivity measurement test result.
  • 1 is a schematic diagram showing eyeglasses having a pair of eyeglass lenses according to a first embodiment. 4A and 4B show examples of optical performance evaluation diagrams of a general progressive power lens, in which FIG. 4A shows the astigmatism distribution of the lens, and FIG. 4B shows the power distribution (addition distribution) of the lens. 1 is a schematic cross-sectional view showing a state in which a wearer is wearing the eyeglasses, taken along a plane extending vertically through the center in the left-right direction of a right-eye eyeglass lens. FIG.
  • FIG. 4 is a graph showing the distance extending forward from the center O of the eye (center of the line of sight) in the line of sight G1 shown in FIG. 3 on the horizontal axis, and the contrast value C at each position on the line of sight G1 on the vertical axis.
  • This is a schematic cross-sectional view showing the state in which a wearer is wearing the glasses, cut along a plane extending vertically through the center of the right eye spectacle lens in the left-right direction, and showing the clear vision area visible through the right eye spectacle lens using three-dimensional polar coordinates (D, ⁇ , ⁇ ).
  • FIG. 7 is a planar cross-sectional view showing a cross section taken along an arrow VII passing through the clear vision area AC(A) of the distance portion in FIG. 5 and showing the clear vision area in that cross section.
  • FIG. 8 is a planar cross-sectional view showing a cross section taken along an arrow VIII passing through the clear vision area AC(C) in the near portion of FIG. 5, and showing the clear vision area within that cross section.
  • FIG. 10 is a graph showing the difference in the change in contrast value C in directions that differ by 90 degrees due to astigmatism.
  • This is a schematic cross-sectional view showing the state in which a wearer is wearing the glasses, cut along a plane extending vertically at the center of the right eye spectacle lens in the left-right direction, and showing the clear vision area that can be seen through the right eye spectacle lens.
  • 1 is a flowchart showing a series of steps for evaluating the three-dimensional clear vision area of a spectacle lens using the evaluation method according to the first embodiment, selecting and/or modifying the design of the spectacle lens based on this evaluation, and manufacturing the spectacle lens based on this design.
  • this is a schematic side cross-sectional view showing the right-eye spectacle lens cut along a plane extending vertically through the center in the left-right direction when the wearer is wearing the glasses and facing forward, showing the visible range where the clear vision area visible through the distance portion of the right-eye spectacle lens overlaps with the visual object.
  • This is a schematic side cross-sectional view showing the right-eye spectacle lens cut along a plane extending vertically through the center in the left-right direction when the wearer is wearing the glasses and facing forward with their head raised, and showing the visible range where the clear vision area visible through the distance portion of the right-eye spectacle lens overlaps with the visual object (for the sake of explanation, the visual object is shown as a transparent object).
  • 1 is a flowchart showing a series of steps for evaluating the performance of a spectacle lens using an evaluation method according to the present embodiment, correcting and designing the spectacle lens based on the evaluation, and manufacturing the spectacle lens based on the corrected design.
  • One aspect of the present invention relates to a method for evaluating eyeglass lenses, and one of its features is that the evaluation is carried out taking into account the contrast sensitivity characteristics of the eyeglass wearer. For this reason, we will first explain how to obtain information regarding the contrast sensitivity characteristics of the wearer.
  • CSF Contrust Sensitivity Function
  • CGT-2000 Contrust Sensitivity Function
  • the test involves presenting the subject with the table shown in Figure 1 and asking them to indicate whether each of stripes A to D is in the upper or lower row.
  • Figure 2 shows an example of the test results, with spatial frequency on the horizontal axis and contrast sensitivity value on the vertical axis.
  • Contrast sensitivity characteristics depend on spatial frequency; as shown by the solid line in Figure 2, contrast sensitivity is greatest when the spatial frequency is 6.0 (Cycles per Degree), with contrast sensitivity decreasing both before and after this frequency. This characteristic is commonly known as the Campbell Robson Chart.
  • the contrast sensitivity function (CSF) measured by a contrast sensitivity test using the above-mentioned contrast sensitivity (CSF) measuring device or the like is the minimum contrast sensitivity value required for visual discrimination, and is not a contrast sensitivity value that is easy to see. Since eyeglass lenses should be evaluated using a contrast sensitivity value that is easy to see, it is necessary to determine a contrast sensitivity value that is easy to see. It is known that a contrast sensitivity value that is easy to see is determined by multiplying the contrast sensitivity function (CSF) measured by a contrast sensitivity test using the above-mentioned contrast sensitivity measuring device or the like by a specified magnification.
  • CSF contrast sensitivity function
  • the contrast sensitivity function value measured by a contrast sensitivity test using the above-mentioned contrast sensitivity measuring device or the like will be referred to as the "contrast threshold,” the specified magnification used to obtain an easy-to-see contrast value from this will be referred to as the “threshold magnification,” and the contrast value determined by multiplying the contrast threshold by the threshold magnification will be referred to as the "corrected contrast value.”
  • contrast sensitivity characteristics vary depending on spatial frequency, so when measuring and evaluating contrast sensitivity, it is necessary to determine the range or value of spatial frequency.
  • the spatial frequency range should be 1 to 30 cycles/degree, and more preferably 5 to 20 cycles/degree.
  • the threshold magnification used to convert the contrast threshold measured using the contrast sensitivity measurement device described above into an easily visible contrast value is preferably 10 to 100 times, and even more preferably 20 to 50 times.
  • the measured contrast threshold value is 0.01 (1.0%) at a spatial frequency of 10 cycles/degree
  • using a threshold magnification of 30 times will result in a corrected contrast value of 0.3 (30%), which can be used as the MTF contrast value and applied to the evaluation of the MTF clear vision range described below.
  • the MTF contrast value For people who can see low-contrast objects, the MTF contrast value will be low. In this case, spectacle lenses will be designed to widen this range, making a so-called soft design (a design that widely disperses astigmatism) the appropriate choice. On the other hand, for people who can only see objects with a fairly high contrast, the MTF contrast value will be high, and spectacle lenses will be designed to narrow this range, making a so-called hard design (a design that concentrates astigmatism in a narrow range) the appropriate choice.
  • the MTF contrast value thus determined is also used to evaluate spectacle lenses.
  • the glasses are schematically shown in Figure 3.
  • the glasses 1 are composed of a right-eye spectacle lens 10R used for the right eye EY(R), a left-eye spectacle lens 10L used for the left eye EY(L), and a spectacle frame 15 having left and right mounting openings 15R and 15L into which both spectacle lenses 10R and 10L are attached.
  • the right-eye spectacle lens 10R and the left-eye spectacle lens 10L may be collectively referred to simply as spectacle lens 10.
  • the spectacle lens 10 in this embodiment is a so-called progressive-power lens.
  • the "up-down and left-right" positional relationships of the spectacle lens 10 refer to the positional relationships when the spectacle lens 10 is attached to the spectacle frame 15 and in use.
  • the up/down and left/right directions as seen by the wearer are referred to as the up/down and left/right directions of the eyeglasses 1 and eyeglass lenses 10.
  • the direction in which the wearer looks through the eyeglass lenses 10 of the eyeglasses 1 will be referred to as the forward direction in this description.
  • the right-eye spectacle lens 10R has a right-eye distance portion 11R located at the top, a right-eye near portion 12R formed below the right-eye distance portion 11R, and a right-eye progressive portion 13R formed in the middle connecting the right-eye distance portion 11R and the right-eye near portion 12R.
  • the right-eye distance portion 11R has a refractive power suitable for distance vision
  • the right-eye near portion 12R has a refractive power suitable for near vision.
  • the refractive power of the right-eye progressive portion 13R changes continuously from a refractive power suitable for distance vision to a refractive power suitable for near vision as it moves from the side closer to the right-eye distance portion 11R to the side closer to the right-eye near portion 12R.
  • the left eye spectacle lens 10L has a left eye distance portion 11L located at the top, a left eye near portion 12L formed below the left eye distance portion 11L, and a left eye progressive portion 13L formed in the middle connecting the left eye distance portion 11L and the left eye near portion 12L.
  • the left eye distance portion 11L has a refractive power suitable for distance vision
  • the left eye near portion 12L has a refractive power suitable for near vision.
  • the refractive power of the left eye progressive portion 13L changes continuously from a refractive power suitable for distance vision to a refractive power suitable for near vision as it moves from the side closer to the left eye distance portion 11L to the side closer to the left eye near portion 12L.
  • power unit: diopter [D]
  • additional power the change in power in the progressive and near portions relative to the power in the distance portion.
  • the above-mentioned eyeglass lens 10 is manufactured by manufacturing a lens 10A designed as shown in Figure 4 and then processing it to a shape that matches the shape of the mounting openings 15R, 15L of the eyeglass frame 15.
  • the eyeglass lens 10 is a progressive power lens, and the lens 10A has an astigmatism distribution as shown in Figure 4(A) and a power distribution (addition power distribution) as shown in Figure 4(B).
  • astigmatism is also generally referred to as astigmatic power (or astigmatic power), and astigmatism will also be referred to as astigmatic power (or astigmatic power) in this specification.
  • FIG. 5 shows a state in which a wearer is wearing the glasses 1, with the right-eye spectacle lens 10R cut along a plane extending vertically and front-to-back through the center in the left-to-right direction.
  • the spectacle lens 10 (right-eye spectacle lens 10R) is positioned in front of the wearer's right eye EY(R), and the wearer views the forward visual space through the spectacle lens 10 with the right eye EY(R).
  • the right eye EY(R) has a crystalline lens on the front side.
  • O the center of the eyeball
  • the direction of its line of sight G1 changes, and the eye sees objects in front of it through various points on the eyeglass lens 10.
  • Typical values are approximately 13 mm for the distance from the eye's center of rotation O to the cornea, and approximately 12 mm for the distance from the cornea on the front side of the lens to the rear surface of the lens (the surface closest to the eye).
  • the lens has the ability to adjust focus, which allows people to see objects at close and far distances with the naked eye.
  • eyeglasses 1 are needed when this ability to adjust focus decreases.
  • Figure 6 shows the change in contrast value along this line of sight G1.
  • the horizontal axis represents the distance extending forward from the point of rotation O (center of the line of sight) along the line of sight G1 in diopter D units (1/m)
  • the vertical axis represents the contrast value C (distinguishing contrast value) seen by the right eye EY (R) at each position along the line of sight G1.
  • the spectacle lens 10 is designed so that it is in focus at a position of distance d0; at this position the contrast value C is greatest and objects at this position appear most clearly.
  • the contrast value C decreases in accordance with the magnitude of the blurring that occurs.
  • the best focus is achieved at the distance d0, so the contrast value C is close to 1.0, and the object viewed by the right eye EY(R) through the eyeglass lens 10 can be seen clearly without a decrease in contrast.
  • distance is specified in diopters D (unit: 1/m) in this embodiment, it may alternatively be expressed in terms of the actual length r (unit: m, etc.).
  • the contrast value C which indicates the degree to which the object can be identified at that position, decreases.
  • the contrast value C 0.2 can be set as the threshold, and the region AC (0.2) where the contrast value is greater than this can be determined to be the linear clear vision region.
  • This clear vision area (linear clear vision area shown in Figure 6) is the range within which the eyeglass wearer can clearly see the object being observed, and is set based on the correction contrast value (MTF contrast value) described above.
  • MTF contrast value correction contrast value
  • the linear clear vision area AC is set to various threshold values, with the MTF contrast value based on the contrast sensitivity characteristics of the eyeglass wearer.
  • Figure 6 shows an example in which the crystalline lens does not have a focusing function, but if it does have a focusing function, the range of distance d0 at which the contrast value C increases will widen in the direction closer to the eye. Accordingly, the curve in Figure 6 closer to the eye than distance d0 will become a curve that has shifted in parallel to correspond to this wider range.
  • the linear clear vision area AC(0.2) on the line of sight G1 set in this manner is shown in Figure 7.
  • the line of sight G1 passes through a single point on the eyeglass lens 10, and by scanning this point on the eyeglass lens 10 and moving the line of sight G1 across the surface of the eyeglass lens 10 to integrate and display the linear clear vision area AC(0.2), a three-dimensional clear vision area AC as shown in Figures 7 to 10 can be obtained.
  • the eyeglass lens 10 (10R) has a distance portion 11R, a progressive portion 13R, and a near portion 12R, each of which has a different focal point.
  • the three-dimensional clear vision area AC is composed of the distance portion clear vision area AC(A) when viewed through the distance portion 11R, the progressive portion clear vision area AC(B) when viewed through the progressive portion 13R, and the near portion clear vision area AC(C) when viewed through the near portion 12R.
  • the distance portion 11R has a small power (negative) and has a distance clear vision area AC(A) in the distance
  • the near portion 12R has a large power (addition power) and has a near clear vision area AC(C) in the vicinity (positive)
  • the power (addition power) of the progressive portion 13R increases from top to bottom, resulting in a progressive clear vision area AC(B) where the clear vision area gradually approaches from the distance clear vision area AC(A) to the near clear vision area AC(C).
  • the wearer of the eyeglasses 1 can see clearly at a distance through the distance portion 11R, see clearly at close range through the near portion 12R, and see clearly in the intermediate range through the progressive portion 13R.
  • the vertical angle as shown in Figure 7 around the line of sight center O is defined as the vertical angle ⁇
  • the horizontal angle as shown in Figures 9 and 10 around the line of sight center O is defined as the horizontal angle ⁇
  • the distance D (diopters) from the line of sight center O can be used to express it in three-dimensional polar coordinates (D, ⁇ , ⁇ ).
  • Figure 7 shows a two-dimensional cross-sectional shape based on the vertical angle ⁇ and distance D. The distance D from the line of sight center is expressed in diopters.
  • the distance r (m) may be used and displayed in three-dimensional polar coordinates (r, ⁇ , ⁇ ).
  • Figure 8 shows an example of displaying the three-dimensional polar coordinates (r, ⁇ , ⁇ ) instead of Figure 7.
  • the three-dimensional clear vision area is the same in Figures 7 and 8, but the illustrated size differs significantly depending on whether it is diopters (D) or the actual distance r (m), as shown.
  • the length in the line of sight will be explained using a diagram that represents the length in three-dimensional polar coordinates (D, ⁇ , ⁇ ) using diopters (D).
  • the distance vision area AC(A), progressive vision area AC(B), and near vision area AC(C) shown in Figure 7 are three-dimensional areas that also extend in the left-right direction of the eyeglass lens 10.
  • Figure 9 shows a planar cross section taken along arrow VII through the distance vision area AC(A) shown in Figure 7
  • Figure 10 shows a planar cross section taken along arrow VIII through the near vision area AC(C).
  • Figures 9 and 10 show two-dimensional cross-sectional shapes based on the left-right angle ⁇ and distance D, and by combining these with the two-dimensional cross-sectional shape based on the up-down angle ⁇ and distance D in Figure 7, the three-dimensional shape of the clear vision area can be determined.
  • the distance vision area AC(A) is formed by the upper part of the spectacle lens 10, and as shown in Figure 4(B), it has a lens configuration with a small diopter (negative) and a focus at a distance.
  • astigmatism astigmatic refractive power
  • the near vision area AC(C) is formed by the lower part of the spectacle lens 10, and as shown in Figure 4(B), it has a lens configuration with a large (positive) power (addition power) and a near focus.
  • astigmatism astigmatic refractive power
  • the arc-shaped area enclosed by the dashed dotted lines LC1 and LC2 in Figure 10 would be the clear vision area, but in the near vision area AC(C), astigmatism rapidly increases as you move to the left and right.
  • the clear vision area rapidly narrows as you move to the left and right sides, as shown by the solid lines LC3 to LC6. For this reason, it is often the case that the clear vision area disappears as you move toward the left and right ends of the near vision area AC(C).
  • Each clear vision field AC(A) to AC(C) shows the clear vision field that is created when the wearer rotates only their eyeballs around the eye's center of rotation O and moves their line of sight within the lens field of the eyeglass lenses 10, without moving their head.
  • the decrease in contrast value C due to astigmatism varies depending on the direction within a plane (the surface of the eyeglass lens 10) perpendicular to the optical axis.
  • the change in contrast value C differs between the left-right direction and the up-down direction of the eyeglass lens 10 (i.e., directions that differ by 90 degrees).
  • the contrast value C on the line of sight G2 indicated by the arrow in Figure 10 will be explained with reference to Figure 11.
  • Figure 11 is a graph showing the position of line of sight G2 on the horizontal axis and the contrast value C on the vertical axis, and is the result of a so-called MTF (Modulation Transfer Function) calculation.
  • MTF Modulation Transfer Function
  • the position FP2 at which the image is in focus on the line of sight G2 is shown on the horizontal axis as the origin position 0 in Figure 11.
  • positions forward of this origin position 0 are shown as positive values on the horizontal axis, and positions closer to the viewer are shown as negative values.
  • the contrast value C of the focal line in the left-right direction is greatest at the origin position 0, as shown by the dashed line C(1), and decreases as one moves forward or backward from the origin position 0.
  • the contrast value C of the focal line in the up-down direction is greatest at a position of approximately 0.25D, as shown by the dashed line C(2), and decreases as one moves forward or backward from the position of approximately 0.25D. In this way, it is necessary to determine the clear vision area based on the contrast values C that differ in the left-right and up-down directions of the eyeglass lens 10 (i.e., the vertical and horizontal directions that differ by 90 degrees).
  • the geometric mean contrast value C(B) of the contrast value C(1A) on the dashed line C(1) and the contrast value C(2A) on the dashed line C(2) is calculated, and the clear vision area is determined based on the geometric mean contrast value C(B).
  • the geometric mean contrast value C(B) is the square root of the product of the contrast value C(1A) and the contrast value C(2A).
  • the geometric mean contrast value C(B) calculated in this way is the value indicated by the solid line C(0) on the line of sight G2, and the range on this solid line C(0) where the contrast value C is 0.2 or greater is the clear vision region.
  • the calculation of the geometric mean contrast value C(B) based on the above formula is just one example, and other calculation methods may also be used, such as based on the position of approximately -0.2D at the negative end of the contrast value C(1A) to the position of approximately 0.5D at the positive end of the contrast value C(2A).
  • the contrast value C that defines the clear vision area is set according to the contrast sensitivity characteristics of the eyeglass wearer, as described above. This makes it possible to perform an accurate evaluation based on the contrast sensitivity characteristics of the eyeglass wearer during the evaluation described below.
  • the setting of the clear vision area using contrast value C is based on the contrast value at each position of the lens, and the three-dimensional clear vision area is set using the so-called MTF (Modulation Transfer Function).
  • MTF Modulation Transfer Function
  • the power changes depending on the vertical angle (angle ⁇ ), so the clear vision area moves from AC(A) to AC(C) in the near direction.
  • the clear vision areas shown in Figures 9 and 10 correspond to the height (angle ⁇ ) at the horizontal angle (angle ⁇ ), and the three-dimensional clear vision area is determined by the MTF.
  • the clear vision area AC(0.2) is wider than the clear vision area AC(0.5).
  • the equal-contrast plane LA(FP) which is best in focus and has the largest contrast value C, is located in the middle position.
  • the three-dimensional clear vision area is set in the manner described above, and the lens performance is evaluated based on the three-dimensional clear vision area thus set.
  • the three-dimensional clear vision area can be calculated by integrating the coordinate values (D, ⁇ , ⁇ ) within the clear vision area AC(0.2) over the entire area. For example, for the clear vision area AC(0.2) at the line of sight G1 shown in Figure 5, the line of sight G1 can be moved within the visible range passing through the spectacle lens 10 at an angle ⁇ in the vertical direction, and also within the visible range passing through the spectacle lens 10 at an angle ⁇ in the horizontal direction, and moved in the front-to-back direction (D) within the visible range, and the clear vision area AC(0.2) at each time can be integrated to obtain the clear vision area.
  • the performance of the spectacle lens 10 can be evaluated using the three-dimensional clear vision area thus determined.
  • This evaluation is preferably performed in combination with the position in the direction of the line of sight G1.
  • the performance of the eyeglass lens 10 can be evaluated based on the entire visible range of the eyeglass lens 10. In this case, this entire region can be evaluated by combining it with its position in the direction of the line of sight G1 or its position relative to an equal-contrast surface.
  • Each of the distance vision portion 11R, progressive power portion 13R, and near vision portion 12R regions of the eyeglass lens 10 can also be evaluated by combining it with its position in the direction of the line of sight G1 or its position relative to an equal-contrast surface. In this way, the lens performance of each of the distance vision portion 11R, progressive power portion 13R, and near vision portion 12R can be evaluated separately.
  • base eyeglass lens design step S20 instead of designing a base eyeglass lens in the base design step S20, it is also possible to prepare various types of base eyeglass lens designs in advance and select from among them a base eyeglass lens design that suits the wearer's purpose and use based on the results of the refraction test and visual (eyesight) test obtained in step S10, the intended use of the eyeglasses, and information on the distance to the visual target.
  • this evaluation is performed in relation to the position on the line of sight G1 or the position of an equal-contrast surface, or based on an area limited to a desired range of the eyeglass lens 10.
  • the desired range here may be, for example, driving a car, watching television, operating a computer, operating a mobile device, reading, performing detailed manual tasks, or a combination of these. It is also possible to set priorities for each use using a questionnaire, such as car: 5, computer: 3, reading: 2, etc.
  • the objects that people view are located at various distances, both near and far, and in people with normal vision and sufficient accommodative power, the lens adjusts focus, allowing them to see objects from far away to close up.
  • glasses are used to compensate for this, and one factor in evaluating the performance of eyeglass lenses is how well a person can see an object while wearing glasses.
  • the evaluation method according to this embodiment detects how much of the object the clear vision area covers when viewed through eyeglass lenses, i.e., the degree of overlap between the clear vision area and the object, and evaluates the performance of eyeglass lenses based on this.
  • Distant Object An object located at infinity to 5 m (0.0D to 0.2D) is the visual target, and is the visual target required when driving a car, for example.
  • Nearly distant object An object located 5 m to 2 m (0.2D to 0.5D) is the visual target. For example, road signs, signboards, and station timetables are considered as visual targets.
  • Intermediate distance object An object located between 2 m and 50 cm (0.5D and 2.0D) is the visual target. For example, a whiteboard or display during a meeting, a person sitting opposite, a television, or a computer screen can be considered as the visual target.
  • Near-distance objects Objects located at a distance of 50 cm or more (2.0D or more) are visually inspected. For example, smartphones, newspapers, books, PC keyboards, etc. are considered as visually inspected objects.
  • glasses lenses are made for a limited range of viewing distances, such as for myopia, hyperopia, presbyopia, and progressive power lenses (also known as bifocals), and it is necessary to evaluate the degree of overlap with the visual target corresponding to the range of viewing distances.
  • Discrimination field The central visual field where visual functions such as visual acuity are excellent, and covers a range of up, down, left and right of 5°.
  • Effective visual field The area in which information can be received instantly by eye movement alone, within a range of approximately 30° to the left and right, approximately 8° upward, and approximately 12° downward.
  • Stable visual field of gaze This is the area that can be gazed upon without strain using eye and head movements and that allows effective information reception, ranging from 60° to 90° to the left and right, 20° to 30° upward, and 25° to 40° downward.
  • the three-dimensional clear vision area AC in the static visual space shown in Figure 14, similar to Figure 7, has a distance vision area AC(A) seen through the distance portion 11R, a progressive vision area AC(B) seen through the progressive portion 13R, and a near vision area AC(C) seen through the near portion 12R.
  • the three-dimensional clear vision area AC is an area within the static visual space, and is referred to as the static clear vision area AC.
  • Figure 14 also shows an example of a distant visual target OBJ1 in a schematic shape, with the distance vision area AC(A) and progressive vision area AC(B) partially overlapping with the distance vision target OBJ1.
  • the overlapping areas are shown by hatching, and include a distance vision area DA(A)1 that overlaps with the distance vision area AC(A), and a progressive vision area DA(B)1 that overlaps with the progressive vision area AC(B). Since these areas exist within the static visual field space and within the static clear vision area AC, they are also referred to as the distance portion static visible area DA(A)1 and the progressive portion static visible area DA(B)1.
  • the distance clear vision area AC(A), progressive clear vision area AC(B), and near clear vision area AC(C) rotate upward by an angle ⁇ 1 around the center O of the eye.
  • the entire visual field space that moves in this way is called the dynamic visual field space, and the entire clear vision area AC that moves along with it is called the dynamic clear vision area.
  • the overlapping areas are shown by hatching in Figure 15 as the distance vision visible area DA(A)2 overlapping with the distance vision area AC(A), the progressive vision visible area DA(B)2 overlapping with the progressive vision area AC(B), and the near vision visible area DA(C)2 overlapping with the near vision area AC(C).
  • the visible area changes from the distance portion stationary visible area DA(A)1 and progressive portion stationary visible area DA(B)1 to the distance portion stationary visible area DA(A)2, progressive portion stationary visible area DA(B)2, and near portion stationary visible area DA(C)2.
  • the total amount by which the distance portion clear vision area AC(A), progressive portion clear vision area AC(B), and near portion clear vision area AC(C) overlap with the distant visual target OBJ1 during this head tilt movement is calculated as the distance portion dynamic visible area DA(A)T1, progressive portion dynamic visible area DA(B)T1, and near portion dynamic visible area DA(C)T1.
  • Lens performance is evaluated based on the distance portion static visible area DA(A)1 and progressive portion static visible area DA(B)1, the distance portion static visible area DA(A)2, progressive portion static visible area DA(B)2 and near portion static visible area DA(C)2, and the distance portion dynamic visible area DA(A)T1, progressive portion dynamic visible area DA(B)T1 and near portion dynamic visible area DA(C)T1 obtained as described above.
  • One possible method for this evaluation is to calculate these three-dimensional areas and compare them with the three-dimensional area of the distance viewing target OBJ1.
  • the three-dimensional clear vision area AC within the static visual field space shown in Figure 14 also extends left and right, and this will be explained with reference to Figure 16, which shows a planar cross-section taken along arrow XII in Figure 14.
  • Figure 16 shows a visual field space similar to that of Figure 9, with a distant visual target OBJ1 shown as an example.
  • This visual field space is a static visual field space that can be seen when a wearer of the eyeglasses 1 faces straight ahead, rotates only the eyeballs around the eye's center of rotation O without moving the head, and moves the line of sight within the lens area of the eyeglass lens 10.
  • Figure 16 shows a planar cross-section of the distance clear vision area AC(A) as seen through the distance portion 11R, which partially overlaps with the distance visual target OBJ1.
  • This overlapping portion i.e., the distance visualizable area DA(A)3 (also referred to as the distance static visualizable area DA(A)3), is indicated by hatching.
  • Figure 17 shows the state when the wearer tilts their head to the right from the position shown in Figure 16.
  • Figure 17 shows the state when the head is tilted to the right by an angle ⁇ 1, and the central gaze GO(1), which was facing straight ahead, turns to the right by an angle ⁇ 1, resulting in a gaze position indicated by central gaze GO(3).
  • the worn eyeglasses 1 move to the right along with the head, moving from the spectacle lens 10(1) indicated by the dashed line to the position of spectacle lens 10(3) indicated by the solid line, as shown in Figure 17.
  • the entire static visual field space tilts to the right by an angle ⁇ 1
  • the three-dimensional clear vision area AC within this static visual field space also tilts and moves to the right.
  • the distance clear vision area AC(A) rotates to the right by an angle ⁇ 1 around the eye's center of rotation O.
  • the distance vision area DA(A)4 which overlaps with the distance vision area AC(A), as shown by the hatching in Figure 17.
  • This distance vision area DA(A)4 exists within the static visual field when the center of the line of sight is the central line of sight GO(3), and therefore is also referred to as the distance vision area DA(A)4.
  • the distance vision static visible area DA(A)3 changes to the distance vision static visible area DA(A)4.
  • the total amount by which the distance vision clear vision area AC(A) overlaps with the far-field visual target OBJ1 during this tilt movement is calculated as the distance vision dynamic visible area DA(A)T2.
  • Lens performance is evaluated based on the distance static visible area DA(A)3, distance static visible area DA(A)4, and distance dynamic visible area DA(A)T2 determined as described above.
  • This evaluation can be performed, for example, by calculating the volume of the distance static visible area DA(A)3, distance static visible area DA(A)4, and distance dynamic visible area DA(A)T2, and comparing this with the volume of the three-dimensional area of the distance viewing target OBJ1.
  • evaluation can be performed by comparing surface areas instead of volumes, or by comparing the area on the projection surface as seen by the right eye EY(R) instead of actual surface areas.
  • Figure 18 shows a visual field space similar to that of Figure 14, with the near-distance visual target OBJ2 shown here.
  • This visual field space is a static visual field space that can be viewed when the wearer of the eyeglasses 1 faces straight ahead, rotates only the eyeballs around the eye's center of rotation O without moving the head, and moves the line of sight within the lens area of the eyeglass lens 10.
  • DA(C)11 that overlaps with the near clear vision area AC(C)
  • DA(B)11 that overlaps with the progressive clear vision area AC(B). Since these areas exist within the static visual field, they are also referred to as the near portion static visually recognizable area DA(C)T11 and the progressive portion static visually recognizable area DA(B)11.
  • Figure 19 shows the state when the wearer tilts their head downward from the position shown in Figure 18.
  • Figure 19 shows the state when the head is tilted downward by an angle ⁇ 2, and the central gaze GO (11) when looking straight ahead turns downward by an angle ⁇ 2, resulting in an eye line position indicated by the central gaze GO (12).
  • the worn eyeglasses 1 tilt downward along with the head, moving from the spectacle lens 10 (11) indicated by the dashed line to the position of the spectacle lens 10 (12) indicated by the solid line, as shown in Figure 19.
  • the entire static visual field space tilts downward by an angle ⁇ 2, and the three-dimensional clear vision area AC within this static visual field space also tilts downward. That is, as shown in Figure 19, the distance clear vision area AC (A), progressive clear vision area AC (B), and near clear vision area AC (C) rotate downward by an angle ⁇ 2 around the center O of the eye.
  • the overlapping areas are the distance vision area DA(A)12 that overlaps with the distance vision area AC(A), the progressive vision area DA(B)12 that overlaps with the progressive vision area AC(B), and the near vision area DA(C)12 that overlaps with the near vision area AC(C).
  • the distance portion static visible area DA(A)12 appears, and the progressive portion static visible area DA(B)11 and near portion visible area DA(C)11 change to the progressive portion static visible area DA(B)12 and near portion visible area DA(C)12.
  • the total amount by which the distance portion clear vision area AC(A), progressive portion clear vision area AC(B), and near portion clear vision area AC(C) overlap with the near-distance visual target OBJ2 during this head tilt movement is determined as the distance portion dynamic visible area DA(A)T11, progressive portion dynamic visible area DA(B)T11, and near portion dynamic visible area DA(C)11.
  • Lens performance is evaluated based on the thus-obtained static visually visible area DA(B)11 of the progressive portion and the near portion DA(C)11, the static visually visible area DA(A)12 of the distance portion, the static visually visible area DA(B)12 of the progressive portion and the near portion DA(C)12, the dynamic visually visible area DA(A)T11 of the distance portion, the dynamic visually visible area DA(B)T11 of the progressive portion and the dynamic visually visible area DA(C)11 of the near portion.
  • This evaluation can be performed, for example, by calculating the three-dimensional volume of each area and comparing this with the volume of the far-field visual target OBJ1.
  • surface areas may be compared instead of volumes, and the areas on the projection surface as seen by the right eye EY(R) may be compared instead of the actual surface areas.
  • the three-dimensional clear vision area AC within the static visual field space shown in Figure 18 also extends left and right, and this will be explained with reference to Figure 20, which shows a planar cross-section taken along arrow XVI in Figure 18.
  • Figure 20 shows a visual field space similar to that of Figure 9, with an example of near-distance visual target OBJ2.
  • This visual field space is a static visual field space that can be seen when a wearer of eyeglasses 1 faces straight ahead, rotates only their eyeballs around the eye's center of rotation O without moving their head, and moves their line of sight within the lens area of eyeglass lens 10.
  • Figure 20 shows a planar cross-section of near clear vision area AC(C) as seen through near portion 12R, which partially overlaps with near-distance visual target OBJ2.
  • This overlapping portion i.e., near-distance visible area DA(C)13 (also referred to as near-distance static visible area DA(C)13), is indicated by hatching.
  • Figure 21 shows the state when the wearer tilts their head to the right from the position shown in Figure 20.
  • Figure 21 shows the state when the head is tilted to the right by an angle ⁇ 2, and the central gaze GO (11), which was facing straight ahead, turns to the right by an angle ⁇ 2, resulting in a gaze position indicated by central gaze GO (13).
  • the worn eyeglasses 1 move to the right along with the head, and as shown in Figure 21, they move from the spectacle lens 10 (11) indicated by the dashed line to the position of the spectacle lens 10 (13) indicated by the solid line.
  • the entire static visual field space tilts to the right by an angle ⁇ 2
  • the three-dimensional clear vision area AC within this static visual field space also tilts and moves to the right.
  • the near clear vision area AC (C) rotates to the right by an angle ⁇ 2 around the center O of the eye.
  • the near visible area DA(C)14 which overlaps with the near clear vision area AC(C), as shown by the hatching in Figure 21.
  • This near visible area DA(C)14 exists within the static visual field when the center of the line of sight is the central line of sight GO(13), and therefore is also referred to as the near static visible area DA(C)14.
  • the near vision static visible area DA(C)13 changes to the near vision static visible area DA(C)14.
  • the total amount by which the near vision clear vision area AC(C) overlaps with the near distance visual target OBJ2 is calculated as the near vision dynamic visible area DA(C)T12.
  • Lens performance is evaluated based on the near vision static visible area DA(A)13, near vision static visible area DA(A)14, and near vision dynamic visible area DA(A)T12 determined as described above.
  • This evaluation can be performed, for example, by calculating the three-dimensional volume of the near vision static visible area DA(A)13, near vision static visible area DA(A)14, and near vision dynamic visible area DA(A)T12, and comparing this with the volume of the near distance visual target OBJ2.
  • evaluation may be performed by comparing surface area instead of volume, or by comparing the area on the projection surface as seen by the right eye EY(R) instead of the actual surface area.
  • the dynamic visible area changes depending on the amount of head tilt, so the extent to which this tilt is tolerated is a major factor.
  • the dynamic clear vision area is defined as the clear vision area within the visual space visible through the eyeglass lenses 10 when the wearer, while wearing the eyeglasses 1, rotates their head and eye movements up to 30 degrees upward, 40 degrees downward, and 45 degrees to the left and right. It is preferable to further restrict the dynamic clear vision area to the dynamic visual field area within the visual field space that can be seen through the eyeglass lenses when the wearer rotates their head and eye movements up to 20 degrees upward, 25 degrees downward, and 30 degrees to the left and right.
  • the stable visual field indicated in the above document can be considered to be a visual field that combines eye movement and head movement.
  • the angle obtained by subtracting the eye rotation angle from the above angle is the range of head movement.
  • the eye rotation angle can be considered to be "(b) effective visual field: 30° horizontally, 8° upward, 12° downward" indicated in the above document, and the angle obtained by subtracting these can be considered the head rotation angle.
  • the wearer's head can be rotated up to 22 degrees upward, 28 degrees downward, and up to 30 degrees to the left and right.
  • the dynamic visual field area within the visual space seen through the eyeglass lenses can be determined when the wearer rotates their head up to 12 degrees upward, 13 degrees downward, and 15 degrees to the left and right.
  • the degree of overlap between the entire clear vision area AC and the visual targets OBJ1 and OBJ2 is evaluated.
  • the degree of overlap between the distance clear vision area AC(A), the progressive clear vision area AC(B), and the near clear vision area AC(C) and the visual targets OBJ1 and OBJ2 may also be evaluated separately.
  • a predetermined range may be selected and set from the visible range of the eyeglass lens 10, and the degree of overlap between the clear vision area and the visual targets OBJ1 and OBJ2 within the set range may be evaluated.
  • the predetermined range may be set from the visible range that can be seen through this portion.
  • a predetermined range may be selected and set based on the distance and size of the visual target, and the degree of overlap between the clear vision area and the visual targets OBJ1 and OBJ2 within this set range may be evaluated.
  • the performance of the eyeglass lens can be evaluated, and based on this evaluation, the design of the eyeglass lens can be modified or an appropriate eyeglass lens design can be selected from multiple eyeglass lens designs prepared in advance. Furthermore, by manufacturing eyeglass lenses based on such design modifications or the selection of an appropriate eyeglass lens design, eyeglass lenses suitable for the wearer can be obtained. This series of steps will be explained with reference to Figure 22.
  • this series of steps includes an information acquisition step S10 in which the eyeglass wearer is subjected to a vision test such as a refraction test and various other information is acquired to obtain information on eyeglass lenses suitable for the wearer; a base design step S20 in which a base eyeglass lens is designed or lens design data is acquired based on the information thus acquired; an evaluation step S30 in which the eyeglass lens is evaluated based on the base eyeglass lens design (evaluating whether the eyeglass lens is suitable for the wearer's intended use); an eyeglass lens redesign step S40 in which an eyeglass lens design is selected or modified if the evaluation is unsuccessful; and an eyeglass lens manufacturing step S50 in which eyeglass lenses are manufactured based on this design if the evaluation in evaluation step S30 is successful.
  • a vision test such as a refraction test and various other information is acquired to obtain information on eyeglass lenses suitable for the wearer
  • a base design step S20 in which a base eyeglass lens is designed or lens design data is acquired based on the information thus acquired
  • Information acquisition step S10 is a work step currently commonly performed at eyeglass retailers.
  • interview step S12 the wearer is asked about the purpose for which they are seeking eyeglasses, as well as the frequency and importance of use, in order to design lenses that suit their eyes.
  • distance information to a visual target e.g., a computer screen
  • the data for lens design obtained in this way is sent to the eyeglass lens manufacturer, who uses the data received to design a base eyeglass lens and obtain lens design data (base design step S20).
  • base eyeglass lens design step S20 instead of designing a base eyeglass lens in the base design step S20, it is also possible to prepare various types of base eyeglass lens designs in advance and select from among them a base eyeglass lens design that suits the wearer's purpose and use based on the results of the refraction test and visual (eyesight) test obtained in step S10, the intended use of the eyeglasses, and information on the distance to the visual target.
  • evaluation step S30 an evaluation is made to determine whether the base eyeglass lens design designed or selected in this manner is suitable for the wearer.
  • This evaluation step S30 includes a three-dimensional clear vision area calculation step S31, which calculates the three-dimensional clear vision area based on the base eyeglass lens design, a step S32, which detects a statically visible area from the overlap between the calculated clear vision area and the visual target in the static visual field space, and a step S33, which detects a dynamic visible area that occurs when the head is moved from the statically visible area. It also includes an evaluation step S34, which evaluates lens performance, etc. based on the static and dynamic visible areas detected in this manner, and a judgment step S35, which decides the next step to proceed to based on the evaluation in evaluation step S34.
  • step S31 which calculates the three-dimensional clear vision area, as described above with reference to Figures 5 and 6, the wearer wears the eyeglass lens 10 and calculates the area AC(0.2) where the contrast value C is 0.2 or greater on the line of sight G when looking through the eyeglass lens.
  • this contrast value is a corrected contrast value obtained by correcting the contrast threshold measured using a contrast sensitivity measuring device or the like with a threshold magnification.
  • the line of sight G is moved within the visible range of the eyeglass lens, and the area AC(0.2) is integrated to calculate the three-dimensional clear vision area as shown in Figures 7 to 10.
  • step S34 it is evaluated whether the base eyeglass lens design designed or selected in step S20 is suitable for the wearer's intended use, etc.
  • step S35 If the evaluation in step S35 is successful, the process proceeds from judgment step S35 to spectacle lens manufacturing step S50, where the spectacle lens is manufactured based on the spectacle lens design performed in base design step S20 or the acquired lens design data. On the other hand, if the evaluation in step S35 is unsuccessful, the process proceeds from judgment step S35 to spectacle lens redesign step S40, where a spectacle lens design is selected or revised. Once the design is reselected or revised in this way, the process returns to three-dimensional clear vision area calculation step S31, where the three-dimensional clear vision area is calculated based on this reselection or revision. The above steps are then repeated from step S32 onwards.
  • eyeglass lenses are manufactured based on eyeglass lens design data that passed the evaluation in step S32, making it possible to create eyeglass lenses that are optimally suited to the wearer's visual acuity and intended use.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Eyeglasses (AREA)

Abstract

Est divulgué un procédé d'évaluation pour un verre de lunettes comprenant : une étape d'acquisition d'informations de sensibilité de contraste pour obtenir des informations relatives à la sensibilité de contraste d'un porteur de lunettes ; une étape de calcul pour, dans un état dans lequel le porteur 1 porte les lunettes, calculer un AC de région de vision nette tridimensionnelle dans un espace de champ visuel visible à travers un verre de lunettes (10) des lunettes (1) avec les informations de sensibilité de contraste acquises dans l'étape d'acquisition d'informations de sensibilité de contraste prise en compte ; et une étape d'évaluation pour évaluer les performances du verre de lunettes (10) sur la base de l'AC de région de vision nette tridimensionnelle obtenue dans l'étape de calcul.
PCT/JP2025/011190 2024-03-29 2025-03-21 Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes Pending WO2025205490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024055160 2024-03-29
JP2024-055160 2024-03-29

Publications (1)

Publication Number Publication Date
WO2025205490A1 true WO2025205490A1 (fr) 2025-10-02

Family

ID=97219262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2025/011190 Pending WO2025205490A1 (fr) 2024-03-29 2025-03-21 Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes

Country Status (1)

Country Link
WO (1) WO2025205490A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105089A (ja) * 2005-10-11 2007-04-26 Seiko Optical Products Co Ltd 眼鏡レンズの明視域表示方法、眼鏡レンズの明視域表示装置、及び眼鏡レンズの明視域表示プログラムを格納した記録媒体
JP2012203189A (ja) * 2011-03-25 2012-10-22 Seiko Epson Corp 累進屈折力レンズの設計方法
JP2013052095A (ja) * 2011-09-02 2013-03-21 Seiko Epson Corp 累進屈折力レンズ選択装置、累進屈折力レンズ選択方法及び累進屈折力レンズ選択プログラム
WO2015015860A1 (fr) * 2013-07-31 2015-02-05 富士フイルム株式会社 Dispositif de détermination de couleurs représentatives, procédé de détermination de couleurs représentatives, programme et support d'enregistrement
JP2016520206A (ja) * 2013-04-25 2016-07-11 エシロール エンテルナショナル （コンパニ ジェネラル ドプチック） 装着者に適合化された頭部装着型電子光学装置を制御する方法
JP2019053324A (ja) * 2011-06-01 2019-04-04 東海光学株式会社 大脳視覚野等の誘発活動による眼鏡レンズの評価方法、眼鏡を使用する被験者の特性の評価方法及び設計方法
JP2020003704A (ja) * 2018-06-29 2020-01-09 株式会社デンソー 情報処理装置
WO2023042869A1 (fr) * 2021-09-14 2023-03-23 株式会社ナックイメージテクノロジー Dispositif d'inspection de sensibilité de contraste, dispositif d'évaluation d'élément optique, procédé d'inspection de sensibilité de contraste et procédé d'évaluation d'élément optique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105089A (ja) * 2005-10-11 2007-04-26 Seiko Optical Products Co Ltd 眼鏡レンズの明視域表示方法、眼鏡レンズの明視域表示装置、及び眼鏡レンズの明視域表示プログラムを格納した記録媒体
JP2012203189A (ja) * 2011-03-25 2012-10-22 Seiko Epson Corp 累進屈折力レンズの設計方法
JP2019053324A (ja) * 2011-06-01 2019-04-04 東海光学株式会社 大脳視覚野等の誘発活動による眼鏡レンズの評価方法、眼鏡を使用する被験者の特性の評価方法及び設計方法
JP2013052095A (ja) * 2011-09-02 2013-03-21 Seiko Epson Corp 累進屈折力レンズ選択装置、累進屈折力レンズ選択方法及び累進屈折力レンズ選択プログラム
JP2016520206A (ja) * 2013-04-25 2016-07-11 エシロール エンテルナショナル （コンパニ ジェネラル ドプチック） 装着者に適合化された頭部装着型電子光学装置を制御する方法
WO2015015860A1 (fr) * 2013-07-31 2015-02-05 富士フイルム株式会社 Dispositif de détermination de couleurs représentatives, procédé de détermination de couleurs représentatives, programme et support d'enregistrement
JP2020003704A (ja) * 2018-06-29 2020-01-09 株式会社デンソー 情報処理装置
WO2023042869A1 (fr) * 2021-09-14 2023-03-23 株式会社ナックイメージテクノロジー Dispositif d'inspection de sensibilité de contraste, dispositif d'évaluation d'élément optique, procédé d'inspection de sensibilité de contraste et procédé d'évaluation d'élément optique

Similar Documents

Publication Publication Date Title
JP5997351B2 (ja) 眼鏡レンズの製造方法
JP6377080B2 (ja) １対の累進眼科用レンズ（１、２）を提供する方法
EP2881779B1 (fr) Procédés de conception et de fabrication de verres pour lunettes et programme
CN104335103A (zh) 用于为佩戴者提供个性化眼镜片光学系统的方法
EP2899584B1 (fr) Procédé de conception d'un verre de lunettes, procédé de fabrication d'un verre de lunettes, procédé de sélection d'un verre de lunettes, système de mesure et procédé de mesure
KR102042554B1 (ko) 안경 렌즈 결정 방법
US20150168743A1 (en) Progressive ophthalmic lens
KR102890215B1 (ko) 착용자의 눈의 비정상적 굴절을 교정하도록 구성되는 안과용 렌즈를 결정하기 위한 방법
EP2392962A1 (fr) Procédé de sélection de verre de lunettes et système de sélection de verre de lunettes
JP2011203705A (ja) 眼鏡レンズ及びその設計方法
KR20140057196A (ko) 누진 안경 렌즈 결정 방법
EP2959338B1 (fr) Méthode de production d'une paire de verres ophtalmiques progressifs
KR102279298B1 (ko) 누진 굴절력 렌즈쌍, 누진 굴절력 렌즈쌍의 설계 방법 및 누진 굴절력 렌즈쌍의 제조 방법
JP2021519447A (ja) 単一視眼科レンズを決定する方法
WO2025205490A1 (fr) Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes
WO2024249092A2 (fr) Lentille à prisme de contour à puissance progressive
WO2025134816A1 (fr) Procédé d'évaluation de lentille de lunettes, procédé de conception, procédé de sélection et procédé de fabrication
WO2025205491A1 (fr) Procédé d'évaluation, procédé de conception, procédé de sélection et procédé de fabrication de verre de lunettes
US6776487B2 (en) Progressive spectacle lens having only a small change of binocular properties during a movement of glance
WO2025134815A1 (fr) Procédé d'évaluation de lentille de lunettes, procédé de conception, procédé de sélection et procédé de fabrication
TW202540730A (zh) 眼鏡鏡片的評估方法、設計方法、選擇方法和製造方法
US6779889B2 (en) Progressive spectacle lens exhibiting only slight dynamic change of the properties of use during a horizontal viewing movements
RU2808663C2 (ru) Способ подбора глазной линзы, приспособленной для коррекции аномальной рефракции глаза у пользователя
JP2021157122A (ja) 一対の累進屈折力レンズおよびその設計方法

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: 25775179

Country of ref document: EP

Kind code of ref document: A1