JP2000347140A - Spectacle lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spectacle lens for rimless spectacles which prevents the cracking of the spectacle lens during drilling of threaded holes, makes the lens appear thin and is free in individualistic ornamentation. SOLUTION: The spectacle lens 1 is formed by inscribing the peripheral surface 5 at the side edge of the outer peripheral edge of the lens with a hollow line groove 6 and an adhesive 7 compounded with one of any among metallic powder, metallic foil, dyes and pigments or by selecting a plurality of thereof is packed into the recessed groove. The lens is also formed by inscribing the side edge of the outer peripheral edge of the lens with the hollow line groove, disposing any one among silk yarn, wool yarn, novelty yarn, rame yarn and synthetic resin yarn as ornamental yarn material in the recessed groove and packing the adhesive therein. The cross-sectional shape of the recessed groove is formed to an approximately trapezoidal shape gradually reduced in the groove width toward the bottom or the cross-sectional shape of the recessed groove is formed to an approximate U shape gradually reduced in the groove width toward the bottom. An epoxy resin adhesive is used for the adhesive. The lens is a concave lens and the rim at the outer peripheral edge on the rear surface side of the concave lens is polished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle lens for frameless spectacles, and more particularly to a spectacle lens characterized in that a decoration is applied to an outer peripheral edge of the lens.

[0002]

2. Description of the Related Art Conventionally, as means for providing individualized eyeglasses, an eyeglass frame itself is provided as various materials and shapes, or an eyeglass lens is colored and provided, such as sunglasses. Most of that was.

Recently, as the function of plastic eyeglass lenses has been improved, after shaping the eyeglass lens into a required outer shape, a screw hole is formed, and a bridge fitting is formed using a screw. Glasses with enhanced fashionability are also provided by attaching frameless frames to frameless glasses.

[0004] The non-rimmed glasses can be made relatively lightweight because of the absence of a frame at the edges, and it has also been possible to provide light-weight glasses to users of heavy glasses using glass lenses.

[0005]

However, in the case of glasses without rims, the shape of the spectacle lens is not clear because there is no frame at the rim portion, and it seems that the spectacle lenses are not worn. The effect of the personality effect due to the unique shape possessed was reduced.

[0006] Further, since there is no frame at the edge portion, for a person using a strong lens, the thickness of the lens is conspicuous because there is no comparison object for spoiling the thickness of the lens. , And was shunned by those who used such strong lenses.

[0007] Also, the spectacle lenses of the frameless glasses include:
It is necessary to drill a screw hole for attaching to a frame without a frame or a bridge bracket, and stress will concentrate on the edge of the eyeglass lens when drilling the screw hole, and the eyeglass lens will break during drilling work was there.

[0008]

In order to solve the above-mentioned problems, according to the present invention, a concave groove is engraved on a side peripheral surface of a lens outer peripheral edge, and metal powder, metal foil, It is an object of the present invention to provide a spectacle lens characterized by being filled with an adhesive selected from one or more of a dye and a pigment.

In addition, a concave groove is formed on the side peripheral surface of the outer peripheral edge of the lens, and any one of silk thread, wool thread, decorative thread, lame, and synthetic resin thread is disposed as a decorative thread material in the concave groove. It is an object of the present invention to provide a spectacle lens characterized by being provided with an adhesive.

Further, the cross-sectional shape of the concave groove is a substantially trapezoidal shape in which the groove width is gradually reduced toward the bottom, and the cross-sectional shape of the concave groove is substantially U-shaped in which the groove width is gradually reduced toward the bottom.
The shape of the letter, the adhesive was an epoxy resin-based adhesive, the lens was a concave lens, and the edge of the outer peripheral edge of the concave lens was polished to reduce the width of the peripheral edge It has features.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The spectacle lens of the present invention is formed by engraving a concave groove on the peripheral surface of the outer peripheral edge of the lens, and any one of metal powder, metal foil, dye and pigment is formed in the concave groove. It is a spectacle lens filled with an adhesive selected from one or more.

Further, a concave groove is formed on the side peripheral surface of the outer peripheral edge of the lens, and any one of silk thread, wool thread, decorative thread, lame, and synthetic resin thread is disposed as a decorative thread material in the concave groove. It is a spectacle lens set up and filled with adhesive.

[0013] By forming a concave groove and filling the concave groove with an adhesive, or by filling the concave groove with a decorative thread material and then filling the adhesive, a frame without a border or a bridge fitting is formed. The stress generated when a screw hole for attachment is formed in the eyeglass lens can be dispersed and reduced, and the eyeglass lens can be prevented from being broken due to the stress.

In particular, by forming the cross-sectional shape of the concave groove into a substantially trapezoidal shape in which the groove width is gradually narrowed toward the bottom or a substantially U-shaped shape in which the groove width is gradually narrowed toward the bottom, Can be further improved. In addition, by forming a substantially trapezoidal shape or a substantially U-shaped shape, the amount of air that is trapped when the concave groove is filled with the adhesive can be reduced, and even if it is trapped, it can be easily removed. can do.

Further, since the adhesive is an epoxy resin-based adhesive, the adhesive has sufficient flexibility even after drying, has a high stress relieving ability, and further absorbs external impacts by the adhesive portion, so that the eyeglasses can be used. It can act to protect the lens.

In particular, by arranging the decorative thread material in the concave groove, the decoration work of the outer peripheral edge of the lens can be facilitated, and the adhesive is impregnated into the decorative thread material during drying of the adhesive. By doing so, the amount of the dried adhesive protruding from the concave groove can be reduced, and the polishing operation for polishing and removing the protruding adhesive can be facilitated.

Further, metal powder, metal foil, dye,
By selecting and blending any one or a plurality of pigments, or by arranging a decorative thread material in the concave groove, it is possible to decorate the outer peripheral edge of the spectacle lens, The same decorative effect as a normal frame can be obtained.

In particular, the above-described decoration is applied to the side peripheral surface which is seen through the lens which causes the thickness of the spectacle lens to be visually recognized, and the decorative part is shown through the lens.
The thickness of the spectacle lens can be spoiled, and the appearance of the lens can be made thinner than it actually is.

Furthermore, when the spectacle lens is a concave lens, the edge of the outer peripheral edge on the back side of the spectacle lens is polished to reduce the width of the peripheral edge, thereby reducing the area of the peripheral edge seen through the lens. Since it can be made smaller, the spectacle lens can be made thinner.

[0020]

FIG. 1 is a perspective view of frameless eyeglasses 11 using the eyeglass lens 1 of the present invention. Related glasses 11
Is constituted by a spectacle lens 1, frames 2 and 2 without a border, a bridge fitting 3, and a connecting screw 4.
Frame 2 without rim on eyeglass lens 1 by connecting screw 4
And the bridge metal fitting 3 is attached so as to assemble and use the glasses.

The spectacle lens 1 is made of plastic,
It may be a transparent lens or a colored lens.

A lens for eyeglasses is usually provided in the form of a circular disk having a circular shape in a plan view, and is cut out into a required shape and used.
A desired shape is cut out from the disc shape, and then a screw hole (not shown) is formed so that the connection screw 4 can be used for attachment.

In the spectacle lens 1 of the present invention, after being cut out of the disk shape into a required shape, as shown in FIG. 2, the concave groove 6 is formed on the side peripheral surface 5 of the outer peripheral edge formed by the cut out. It is engraved.

Next, as shown in FIG. 3, the engraved concave groove 6 is filled with an adhesive 7. A material that becomes transparent after drying is used as the adhesive 7, and a metal powder such as gold powder or silver powder or a metal foil 8 is mixed with the adhesive 7 as appropriate to decorate the periphery of the spectacle lens 1. It is configured as follows. Further, the color may be formed by mixing a dye or a pigment with the adhesive 7.
In this embodiment, an epoxy resin adhesive is used as the adhesive 7.

After the adhesive 7 filled in the concave groove 6 is dried, the portion of the adhesive 7 which has protruded from the concave groove 6 is shaved off by polishing, and the surface of the side peripheral surface 5 is adjusted to prepare the spectacle lens 1. Then, a screw hole is formed so that the frameless glasses 11 can be assembled.

By forming a concave groove 6 on the side edge peripheral surface 5 of the spectacle lens 1 and filling the concave groove 6 with an adhesive 7, the shape of the concave groove 6 acts to disperse stress. The adhesive 7 acts as a cushioning material, so that the stress acting on the spectacle lens 1 when the screw hole is formed can be reduced,
The spectacle lens 1 can be prevented from being broken during the drilling of the screw hole.

Particularly, by using an epoxy resin-based adhesive as the adhesive 7, since the adhesive has sufficient flexibility even after drying, the external impact can be absorbed by the adhesive, and the glasses 7 The effect of protecting the lens 1 can be enhanced.

By mixing the metal powder or metal foil 8 or the dye or pigment with the adhesive 7, the outer periphery of the spectacle lens 1 can be decorated, and the shape of the outer periphery is emphasized. Therefore, by making the shape of the outer peripheral edge of the spectacle lens 1 a unique shape, individual glasses can be created. In particular, since the shape of the outer peripheral edge can be set to any shape as desired, only one pair of glasses can be easily prepared in the world, and the individuality can be more strongly appealed.

Further, when the person wearing the frameless glasses 11 using the spectacle lens 1 of the present invention is viewed from the front, the decorative portion of the side edge peripheral surface 5 can be seen through the lens of the spectacle lens 1, and the side edge periphery can be seen. Since the width of the surface 5 can be made narrower, the thickness of the lens can be spoiled, and the effect of making the lens thickness appear thinner than it actually is can be produced.

The shape of the concave groove 6 is as shown in FIG.
The cross-sectional shape is not limited to a substantially rectangular shape, but may be a concave groove 6 ′ having a trapezoidal cross-sectional shape narrowing toward the bottom as shown in FIG. By forming the concave groove 6 'having a trapezoidal cross section, the efficiency of stress relaxation can be improved, and the adhesive 7 filled in the concave groove 6' can easily remove air that has caught at the time of filling. be able to.

Further, as another embodiment, as shown in FIG. 5, a concave groove 6 "having a U-shaped cross section which becomes narrower toward the bottom may be formed as a concave groove 6" having a U-shaped cross section. This makes it possible to further improve the stress relaxation efficiency and to fill the concave groove 6 "with the adhesive 7 without filling the adhesive 7 with air.
Can easily be filled.

A concave groove 6 'having a trapezoidal cross section and a cross section U
The U-shaped concave groove 6 "can be easily formed by machining the shape of the cutting blade in which the concave grooves 6 ', 6" are engraved in advance.

Further, instead of filling the concave grooves 6, 6 ', 6 "with the adhesive 7 mixed with the above-mentioned metal powder, metal foil 8, dye, pigment and the like, the sectional views shown in FIGS. As shown in the figure, the decorative thread material 9 is arranged in the concave grooves 6, 6 ', 6 "in a circling state, and further filled with a simple adhesive 7 or an adhesive 7 containing a metal powder or a metal foil 8. Decorative thread material 9
May be configured to be fixed.

As the decorative thread material 9, silk thread, wool thread, decorative thread, lame, or synthetic resin thread made of synthetic resin fiber such as nylon fiber or acrylic fiber is used.
Those that have been appropriately colored are used.

In particular, when a yarn obtained by twisting fibers such as silk yarn, wool yarn or synthetic resin yarn is used as the decorative yarn material 9, a part of the adhesive 7 is impregnated into the yarn while the adhesive 7 is drying. However, the amount of the adhesive 7 which protrudes from the concave groove 6 after the adhesive 7 is dried can be reduced, and the labor for polishing the protruding adhesive 7 can be reduced.

In particular, by forming the concave groove as a concave groove 6 "having a U-shaped cross section, the contact area between the bottom of the concave groove 6" and the decorative thread material 9 can be increased, and the concave groove 6 "can be formed. When air is filled with the adhesive 7, air entrapment can be reduced, and the quality can be improved.

Although FIGS. 2 to 5 illustrate a concave lens for myopia as an example (particularly, in FIGS. 3 to 5, the concave lens is slightly deformed and drawn), it is limited to a concave lens. Instead, the same processing may be applied to the convex lens.

The spectacle lens 1 formed as described above, particularly a concave lens, is obtained by removing the edge 10 on the back side of the spectacle lens 1 by polishing, as shown in FIGS. The width of the side edge peripheral surface 5 can be physically reduced, the width of the side edge peripheral surface 5 seen through the lens can be reduced, and the spectacle lens 1 can be made even thinner than the actual thickness.

[0039]

According to the present invention, the following effects can be obtained.

By forming a concave groove on the side peripheral surface of the lens outer peripheral edge and filling the concave groove with an adhesive, the stress generated due to the drilling of the screw hole is dispersed and relaxed. This can prevent the spectacle lens from being broken by the same stress. In particular, by using an epoxy resin adhesive as the adhesive, sufficient flexibility can be maintained even after drying, so that the ability to relieve stress is high, and external shocks can be absorbed by the adhesive. Therefore, it can act to protect the spectacle lens.

Any one or a plurality of metal powders, metal foils, dyes, and pigments are selected and blended with the adhesive, and the adhesive is filled in the groove or the groove is filled. By arranging the decorative thread material and filling the adhesive, it is possible to decorate the outer peripheral edge of the spectacle lens, and the decoration can bring out the same decorative effect as a normal frame, so the frame type It is lighter than the eyeglasses and can provide the same decorative effect as the frame type eyeglasses. In particular, since the decoration of the side peripheral surface can be shown through the lens of the spectacle lens, an effect of making the lens thickness appear small can be produced.

By making the cross-sectional shape of the concave groove into a substantially trapezoidal shape in which the groove width is gradually reduced toward the bottom, or by forming the groove in a substantially U-shaped shape in which the groove width is gradually reduced toward the bottom, Can be further improved. In addition, the amount of air that enters during the filling of the concave groove with the adhesive can be reduced, and even if it does, it can be easily removed.

By polishing the edge of the outer peripheral edge on the back side of the spectacle lens, the width of the peripheral surface of the side edge is physically thinned,
The eyeglass lens can be made thinner by reducing the width of the side edge peripheral surface seen through the lens.

[Brief description of the drawings]

FIG. 1 is a perspective view of frameless eyeglasses using the eyeglass lens of the present invention.

FIG. 2 is a partially cutaway perspective view of the eyeglass lens of the present invention during processing.

FIG. 3 is a longitudinal sectional view of the eyeglass lens of the present invention.

FIG. 4 is a longitudinal sectional view of the spectacle lens of the present invention.

FIG. 5 is a longitudinal sectional view of the spectacle lens of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spectacle lens 2 Frame without frame 3 Bridge fitting 4 Connection screw 5 Side edge peripheral surface 6, 6 ', 6 "Recessed groove 7 Adhesive 8 Metal foil 9 Decorative thread material 10 Edge 11 Edgeless glasses

Claims (6)

[Claims] 1. A concave groove is engraved on a side peripheral surface of a lens outer peripheral edge, and one or a plurality of metal powders, metal foils, dyes, and pigments are selected and compounded in the concave groove. Eyeglass lenses characterized by being filled with a pre-adhesive. 2. A concave groove is engraved on a side peripheral surface of an outer peripheral edge of a lens, and any one of silk thread, wool thread, decorative thread, lame, and synthetic resin thread is arranged as a decorative thread material in the concave groove. A spectacle lens that is provided and filled with an adhesive. 3. The spectacle lens according to claim 1, wherein a cross-sectional shape of the concave groove is a substantially trapezoidal shape in which a groove width is gradually narrowed toward a bottom. 4. The spectacle lens according to claim 1, wherein a cross-sectional shape of the concave groove is a substantially U-shape in which a groove width is gradually reduced toward a bottom. 5. The spectacle lens according to claim 1, wherein the adhesive is an epoxy resin adhesive. 6. The lens according to claim 1, wherein the lens is a concave lens, and the edge of the outer peripheral edge on the rear surface side of the concave lens is polished to reduce the width of the peripheral edge. Eyeglass lens described in.