JP2013228700A - Spectacle lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spectacle lens capable of giving a new added value of eye makeup to spectacles.SOLUTION: In a configuration of a spectacle lens 1, an optical surface 2 of the lens is divided into an upper region 4 and a lower region 5 by a boundary 3 crossing a vertical reference line V passing a reference point 8 assumed as a pupil position. The boundary 3 crosses the vertical reference line V at a position which is shifted upward from the reference point 8 by a prescribed length L, on the vertical reference line V. The lower region 5 is a low-density region where the density is relatively lower, and the upper region 4 is a high-density region where the density is relatively higher, and includes an eye shadow effecting part 10 which is colored so as to produce an eye shadow effect when the lens is mounted on a spectacle frame.

Description

  The present invention relates to colored eyeglass lenses.

  The lens for spectacles is finally processed so as to conform to the frame shape of the spectacle frame (hereinafter referred to as “lens processing”). In the present specification, in order to distinguish between “lens before target lens processing” and “lens after target lens processing”, the former is referred to as “eyeglass lens” and the latter is referred to as “lens lens”. In general, the outer shape of a spectacle lens is circular, and the outer shape of the lens lens obtained by processing this lens is a shape that matches the frame shape of the spectacle frame (the shape of the portion on which the lens lens is mounted). ing.

  In addition, some spectacle lenses are colored on the optical surface of the lens by dyeing in order to improve the fashionability of the final spectacles or reduce glare when wearing spectacles, There is one in which the density of the color is continuously changed (for example, see Patent Documents 1 to 3).

JP 2011-81232 A JP 2008-9327 A Japanese Patent Laid-Open No. 10-5673

  Conventionally, the purpose of coloring eyeglass lenses has been solely to increase the fashionability of glasses themselves or to reduce glare. In addition, no spectacle lens that replaces the effect of eye makeup has been provided so far.

  A main object of the present invention is to provide a spectacle lens capable of imparting a new added value of eye makeup to spectacles.

The present invention is not based on the idea of enhancing the fashionability of eyeglasses, but based on the new idea of eye makeup through eyeglass lenses.
That is, the first aspect of the present invention is:
The optical surface of the lens is partitioned into an upper region and a lower region by a boundary line intersecting a vertical reference line passing through a reference point assumed as a pupil position,
The boundary line intersects the vertical reference line above the reference point on the vertical reference line;
The lower region is a low concentration region having a relatively low concentration,
The upper area is a high density area having a relatively high density, and includes an eye shadow effect exhibiting portion colored so as to exhibit an eye shadow effect when the lens is attached to a spectacle frame. It is a spectacle lens.

The second aspect of the present invention is:
The boundary line intersects the vertical reference line at a position a predetermined distance above the reference point on the vertical reference line,
The predetermined distance is set in accordance with a distance from a pupil position assumed with an eye open to an edge of the upper eyelid. The spectacle lens according to the first aspect described above.

The third aspect of the present invention is:
The first or second aspect, wherein the boundary line is an arc-shaped curve projecting upward, or a straight line parallel to a horizontal reference line orthogonal to the vertical reference line at the reference point. The spectacle lens described in 1.
The fourth aspect of the present invention is:
The eye shadow effect exhibiting portion is provided with a density gradient, and is colored so that the density becomes lighter or darker as it approaches the boundary line. The spectacle lens according to any one of the three aspects.

  According to the present invention, a new added value called eye makeup can be imparted to eyeglasses.

It is a front view which shows the structure of the spectacle lens which concerns on embodiment of this invention. It is the figure which piled up the image of the eye in the spectacles lens concerning an embodiment of the invention. It is a front view which shows the structure of the spectacle lens which concerns on other embodiment of this invention. It is a figure explaining one of the modifications of this invention. It is a figure which shows the example which used the boundary line of the spectacle lens as the straight line.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the embodiment of the present invention, description will be given in the following order.
1. 1. Configuration of spectacle lens 2. Effects according to the embodiment Other Embodiments 4. 4. Modifications etc. Appendix

<1. Configuration of eyeglass lens>
FIG. 1 is a front view showing a configuration of a spectacle lens according to an embodiment of the present invention, and FIG. 2 is a diagram in which an eye image is superimposed on the spectacle lens. In FIG. 2, the image of the eye assumed when wearing spectacles manufactured using the spectacle lens according to the embodiment of the present invention is superimposed and expressed.

  The illustrated spectacle lens 1 is a plastic lens, for example, and has an optical surface 2. The optical surface 2 of the spectacle lens 1 is convex on the front side and concave on the rear side. The optical surface 2 is divided into an upper region 4 and a lower region 5 by a boundary line 3. Within the optical surface 2 of the spectacle lens 1, there is a reference point (virtual point) 8 assumed as the center position of the pupil 7 of the human eye 6 (hereinafter referred to as “pupil position”). The reference point 8 is a point indicating the optical center if the spectacle lens 1 is a single focus lens, and is a prism measurement reference point (for a distance portion) if the spectacle lens 1 is a progressive power lens or a bifocal lens. (Fitting point). The position of the reference point 8 can be specified using, for example, an alignment mark (hidden mark) attached to the optical surface 2.

  Here, the vertical direction (up and down direction) and the horizontal direction (left and right direction) of the spectacle lens 1 are defined based on the direction of the lens 9 when the spectacles are worn, and the vertical reference line V and the horizontal reference line are defined in accordance with this definition. H is specified. The vertical reference line V is a straight line (virtual line) passing through the reference point 8 of the spectacle lens 1 and parallel to the vertical direction. The horizontal reference line H is a straight line (virtual line) passing through the reference point 8 of the spectacle lens 1 and parallel to the horizontal direction. For this reason, the vertical reference line V and the horizontal reference line H are orthogonal to each other at the reference point 8.

  On the other hand, the boundary line 3 described above is an arcuate curve that intersects the vertical reference line V. More specifically, the boundary line 3 intersects the vertical reference line V at a position on the vertical reference line V that is a predetermined distance L above the reference point 8. The “predetermined distance L” described here is set according to the distance from the pupil position assumed with the eyes 6 open to the edge of the upper eyelid. The predetermined distance L is preferably determined, for example, for “type of person” such as Asians and Westerners, “by age” such as adults and children, or “for each individual”. As an example, when the predetermined distance L is determined for the “type of person”, the average distance of Asians is less than 4 mm with respect to the distance from the pupil position to the edge of the upper eyelid. The distance L may be set in a range of 4 to 6 mm, which is slightly longer than 4 mm. When the predetermined distance L is set a little longer in this way, the colored portion is difficult to enter the visual field of the spectacle wearer, which is preferable in terms of securing a good visual field.

  In addition, the boundary line 3 is, for example, a circle with a radius of curvature R having a center on the vertical reference line V in a space deviated from the optical surface 2 of the spectacle lens 1 so as not to surround an area around the reference point 8. It has an arcuate curve. One end 3A and the other end 3B of the boundary line 3 exist on the outer periphery of the spectacle lens 1 that is largely separated from the vertical reference line V in one direction and the other in the horizontal direction, respectively.

  The boundary line 3 is an arc-shaped curve projecting upward on the vertical reference line V, and a part of the curve is aligned with the shape of the edge of the upper eyelid (so-called an eyelid curve). It is a pseudo curve that simulates the shape of the edge of the. It has been found that the main part of the shape of the upper eyelid assumed when a person opens the eyes 6 draws an arc having a radius of curvature of approximately 20 to 25 mm (see JP 2001-286340 A). For this reason, if the curvature radius R of the boundary line 3 is set according to this, the boundary line 3 can be made into said pseudo curve.

  However, in order to exhibit the eye shadow effect described later, the boundary line 3 does not necessarily have to be an arcuate curve that protrudes upward. Specifically, the boundary line 3 may be a straight line parallel to the horizontal reference line H (see FIG. 5), or may be a straight line having an appropriate inclination with respect to the horizontal reference line H. In addition to this, the boundary line 3 may be an arcuate curve that slightly protrudes downward on the vertical reference line V. Further, the boundary line 3 may be a mountain-shaped curve that draws a gentle curve.

  Of the two regions 4 and 5 defined by the boundary line 3, the upper region 4 is a high concentration region (low permeability region) having a relatively high concentration. In the upper region 4, an eye shadow colored so as to exhibit an eye shadow effect when a lens lens 9 obtained by processing the spectacle lens 1 is mounted on a spectacle frame (not shown). The effect display part 10 is included. The “eye shadow effect” described here is one of eye makeup effects, and refers to a makeup effect that impresses and shows the area of the upper eyelid 6 through the lens when wearing glasses. The eye shadow effect exhibiting portion 10 is a portion included in a region remaining as a lens lens 9 at least after the lens processing in the upper region 4. The eye shadow effect exhibiting portion 10 is colored so that the density decreases as the boundary line 3 is approached. Therefore, for example, when the density of the upper region 4 on the vertical reference line V is seen, the gradient is set so that the density decreases continuously from top to bottom.

  Incidentally, the remaining range as the target lens 9 varies depending on the frame shape of the spectacle frame and the size of the frame, but in any case, the eye shadow effect exhibiting portion 10 is within the optical surface 2 of the target lens 9 and the eye 6. The position is set so as to remain in the upper part of the. In the illustrated example, the entire upper region 4 is colored, but the present invention is not limited to this. For example, in the upper region 4, the lens portion outside the contour of the largest lens lens assumed for the spectacle lens 1 (the portion that is always cut by the lens processing) may not be colored. . That is, in the state of the lens lens 9 obtained by processing the eyeglass lens 1 into a target lens shape, the region 4 above the boundary line 3 is the high concentration region, and all or one of the high concentration regions. The part should just be the eye shadow effect exhibiting part 10.

As a method for coloring the spectacle lens 1, for example, any of the methods described below can be employed.
(1) A method of coloring by a conventional lens dyeing method such as an immersion method or a sublimation method.
(2) A method of attaching a colored film to the spectacle lens 1.
(3) A method of coloring by a spray method.
(4) A method of coloring by application using a pen or brush.

  On the other hand, the lower region 5 is a low concentration region (highly transmissive region) having a relatively low concentration. In the present embodiment, as a preferred example, the lower region 5 is a transparent region. The concept of “transparency” described here includes not only a state in which coloring is not performed at all, but also a state in which it is impossible to recognize or difficult to recognize that it is colored when the eyeglass lens 1 is visually observed.

  In the example shown in the figure, the entire lower region 5 is a transparent region, but the present invention is not limited to this. For example, in the lower region 5, the lens portion outside the contour of the largest lens lens assumed for the spectacle lens 1 may be darkly marked or colored for some purpose. It may be. That is, in the state of the target lens 9 obtained by processing the spectacle lens 1 in a target lens shape, the entire lower region 5 only needs to be the above-described low density region. However, in the state of the lens lens 9, there is a dark portion in the lower region 5 under a condition that does not inhibit the eye shadow effect (for example, a position far away below the boundary 3). It doesn't matter.

  When manufacturing spectacles using the spectacle lens 1 having the above-described configuration, the spectacle lens 1 is processed into a target lens using a target lens processing machine (not shown). Thereby, the target lens 9 is obtained. Thereafter, the lens 9 is attached to a spectacle frame (not shown) by frame insertion or the like. Thereby, the spectacles using the spectacle lens 1 are obtained.

<2. Effect of Embodiment>
In the embodiment of the present invention, the optical surface 2 of the spectacle lens 1 is divided into an upper region 4 and a lower region 5 by a boundary line 3, and the upper region 4 having a relatively high density is colored. The eye shadow effect exhibiting unit 10 is configured. For this reason, when wearing spectacles using the spectacle lens 1, the eye shadow effect exhibiting unit 10 can make an impression around the upper eyelid of the wearer's eyes 6. Thereby, not only the fashionability of the glasses can be improved, but also a new added value of eye makeup can be given to the glasses. Therefore, for example, a new use of the spectacle lens 1 can be created such that spectacles using the spectacle lens 1 can be used as an alternative to eye shadow.

  Moreover, in the said embodiment, it has the structure which colored the eye shadow effect exhibiting part 10 so that a density | concentration may become light as the boundary line 3 is approached within the optical surface 2 of the spectacle lens 1. FIG. For this reason, when the spectacles manufactured using the spectacle lens 1 are worn, a portion having a high coloring density is arranged away from the pupil position. Therefore, even if the position of the glasses drops slightly during wearing of the glasses, the high density portion of the eye shadow effect exhibiting portion 10 is difficult to enter the field of view. Therefore, the visual field of the spectacle wearer can be kept good.

<3. Other embodiments>
FIG. 3 is a front view showing the configuration of a spectacle lens according to another embodiment of the present invention.
In the illustrated spectacle lens 1, an imaginary straight line S passing through one end 3 </ b> A and the other end 3 </ b> B of the boundary line 3 is slanted with respect to the horizontal reference line H from the eye side (left side in the figure) toward the eye corner side (right side in the figure). It is in a form inclined upward. The inclination angle θ of the virtual straight line S with respect to the horizontal reference line H is that the average inclination of the human eye 6 (the inclination of the virtual line connecting the eyes and the corners of the eyes) is 10 degrees (Japanese Patent Laid-Open No. 2010-29654). According to this, it is desirable to set the tilt angle θ to 10 degrees. When such a configuration is adopted, the boundary line 3 of the eye shadow effect exhibiting unit 10 has an inclination similar to that of the virtual straight line S as a whole. The shadow effect can be exhibited. In the example shown in the figure, the boundary line 3 is an arcuate curve.

The spectacle lens 1 has a configuration of the boundary line 3 according to at least one of information on an individual wearing spectacles manufactured using the spectacle lens 1 and information on a spectacle frame selected by the wearer. It may be set at least one of position and shape. Further, since the size and shape of the human eye 6 are slightly different on the left and right, the position and shape of the boundary line 3 may be set for each of the left and right lenses. Incidentally, personal information includes interpupillary distance (including near and far), layout information such as eyepoints, prescription values such as addition power, and the like. The spectacle frame information includes a frame size, a frame material, a frame color, a frame shape, and the like. The position, shape, and the like of the boundary line 3 include at least one of the predetermined distance L, the radius of curvature, and the inclination angle θ described above.
When this configuration is adopted, it is possible to provide a spectacle lens 1 having an eye shadow effect exhibiting unit 10 suitable for each individual and spectacles using the same.

<4. Modified example>
The technical scope of the present invention is not limited to the above-described embodiments, and includes various modifications and improvements as long as the specific effects obtained by the constituent elements of the invention and combinations thereof can be derived.

  For example, the boundary line 3 is not limited to the arc-shaped curve defined by the constant curvature radius R as described above, but a combination of a plurality of arc-shaped curves having different curvature radii R1 and R2 as shown in FIG. (Joined together) may be one continuous curve. In this case, the boundary line 3 which is the pseudo curve described above can be brought close to the shape of the upper eyelid edge of the eye 6. For this reason, the area around the upper eyelid of the eye 6 can be impressed with a more natural feeling.

  Further, the eye shadow effect exhibiting part 10 may be colored so that the density increases as the boundary line 3 is approached. In this case, since the colored part is emphasized along the edge of the upper eyelid of the eye 6, a higher eye shadow effect can be obtained. However, the eye shadow effect exhibiting unit 10 is not necessarily limited to the one having a gradient in density, and may be colored with a uniform density. Further, the eye shadow effect exhibiting portion 10 and the upper region 4 including the eye shadow effect exhibiting portion 10 may be colored by combining a plurality of different colors. For example, the arc-shaped portion closest to the boundary line 3 may be light purple, and the arc-shaped portion outside it may be pink. Furthermore, the eye shadow effect exhibiting part 10 may have a form with a pattern using one color or a plurality of colors, and may have a form in which lamé is put in a position that does not obstruct the visual field, if necessary.

  Further, in the eye shadow effect exhibiting portion 10 and the upper region 4 including the same, the direction in which the concentration gradient is applied may be a vertical direction, a horizontal direction, or an oblique direction. Among these, when the concentration gradient is applied in the horizontal direction, it is preferable to apply the gradient so that the concentration gradually increases from the nose side (eye side) toward the ear side (eye corner side). In this case, the concentration on the nasal side is the highest. However, the present invention is not limited to this, and the portion with the highest density may be set in the middle of the eye and the corner of the eye (near the pupil position) or may be set on the ear side.

  The lower region 5 is not limited to a transparent region, and may be a region colored with a density (thinness) that does not inhibit the above-described eye shadow effect. Regarding the density range that does not inhibit the eye shadow effect, the eye shadow effect slightly changes depending on the density difference or color difference between the upper region 4 and the lower region 5 in the vicinity of the boundary line 3, and therefore, the parameters are not limited. What is necessary is just to set suitably according to. Specifically, when the density difference or color difference between the areas 4 and 5 is relatively large, the upper limit value and the lower limit value of the density range are set to be reduced accordingly, and vice versa. What is necessary is just to set by direction.

  The spectacle lens 1 to which the present invention is applied is not limited to a plastic lens, and may be a glass lens.

<5. Addendum>
Hereinafter, preferred embodiments of the present invention will be additionally described.
[Appendix 1]
The optical surface of the lens is partitioned into an upper region and a lower region by a boundary line intersecting a vertical reference line passing through a reference point assumed as a pupil position,
The boundary line intersects the vertical reference line above the reference point on the vertical reference line;
The lower region is a low concentration region having a relatively low concentration,
The upper area is a high density area having a relatively high density, and includes an eye shadow effect exhibiting portion colored so as to exhibit an eye shadow effect when the lens is attached to a spectacle frame. Eyeglass lens to do.

[Appendix 2]
Appendix 1 wherein an imaginary straight line passing through one end and the other end of the boundary line is inclined from the top of the eye toward the outer corner of the eye with respect to a horizontal reference line orthogonal to the vertical reference line at the reference point. The spectacle lens described in 1.

[Appendix 3]
The spectacle lens according to appendix 2, wherein an inclination angle of the virtual straight line with respect to the horizontal reference line is set to 10 degrees.

[Appendix 4]
The eye shadow effect exhibiting part is provided with a density gradient, and is colored so that the density becomes lighter or darker as it approaches the boundary line. The spectacle lens according to any one of the above.

[Appendix 5]
Any one of Supplementary notes 1 to 4, wherein at least one of the position and the shape of the boundary line is set according to at least one of personal information wearing spectacles and information on spectacle frames. The spectacle lens according to one.

[Appendix 6]
The boundary line intersects the vertical reference line at a position a predetermined distance above the reference point on the vertical reference line,
The spectacles according to any one of appendices 1 to 5, wherein the predetermined distance is set according to a distance from a pupil position assumed with the eyes open to an edge of the upper eyelid. lens.

[Appendix 7]
The boundary line is an arc-shaped curve projecting upward, or a straight line parallel to a horizontal reference line perpendicular to the vertical reference line at the reference point. Eyeglass lenses.
[Appendix 8]
8. The boundary line is an arcuate curve that protrudes upward, and is a pseudo curve that simulates the shape of the edge of the upper eyelid that is assumed with the eyes open. Eyeglass lenses.

[Appendix 9]
A lens lens formed by processing the eyeglass lens according to any one of appendices 1 to 8,
A spectacle frame formed by mounting the target lens;
Eyeglasses characterized by comprising.

DESCRIPTION OF SYMBOLS 1 ... Eyeglass lens 2 ... Optical surface 3 ... Boundary line 4 ... Upper area | region 5 ... Lower area | region 6 ... Eye 7 ... Pupil 8 ... Reference point 10 ... Eye shadow effect display part

Claims (4)

The optical surface of the lens is partitioned into an upper region and a lower region by a boundary line intersecting a vertical reference line passing through a reference point assumed as a pupil position,
The boundary line intersects the vertical reference line above the reference point on the vertical reference line;
The lower region is a low concentration region having a relatively low concentration,
The upper area is a high density area having a relatively high density, and includes an eye shadow effect exhibiting portion colored so as to exhibit an eye shadow effect when the lens is attached to a spectacle frame. Eyeglass lens to do. The boundary line intersects the vertical reference line at a position a predetermined distance above the reference point on the vertical reference line,
The spectacle lens according to claim 1, wherein the predetermined distance is set according to a distance from a pupil position assumed with an eye open to an edge of the upper eyelid. The boundary line is an arc-shaped curve projecting upward, or a straight line parallel to a horizontal reference line orthogonal to the vertical reference line at the reference point. Eyeglass lens. The eye shadow effect exhibiting portion is provided with a density gradient, and is colored so that the density becomes lighter or darker as it approaches the boundary line. The spectacle lens according to any one of the above.