CN220154741U

CN220154741U - Bifocal spectacle lens

Info

Publication number: CN220154741U
Application number: CN202321688364.4U
Authority: CN
Inventors: 周贤建; 林铭昊; 黄鹭
Original assignee: Riccino Xiamen Optical Co ltd
Current assignee: Riccino Xiamen Optical Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-08
Anticipated expiration: 2033-06-29

Abstract

The utility model relates to the technical field of glasses and discloses a bifocal spectacle lens which comprises a lens mechanism, wherein a plurality of clamping teeth are fixedly arranged on the outer end face of the lens mechanism, the lens mechanism comprises a lens main body and a lens main layer, and a hardening layer is fixedly arranged on the front end face of the lens main layer. According to the utility model, the tightness of the lenses in the glasses frame is increased through the clamping teeth arranged on the periphery outside the lens mechanism, the possibility of dropping the lenses when the glasses are worn is reduced, the hardness of the lenses is increased through the hardening layer arranged in front of the main layer of the lenses, the possibility of dropping the lenses when the lenses are dropped is reduced, the upward vision lenses arranged in the upper vision area are high-degree lenses, a user can conveniently watch the far place, the downward vision lenses arranged in the lower vision area are low-degree lenses, the user can conveniently watch the near place, the degree of the gradual change lenses arranged in the gradual change area is from top to bottom, the change of the eye adaptation degree is facilitated, and the dizziness caused by rapid switching is reduced.

Description

Bifocal spectacle lens

Technical Field

The utility model relates to the technical field of glasses, in particular to a bifocal spectacle lens.

Background

The bifocal eyeglass is commonly called bifocal eyeglass, which is formed by bonding or fusing two kinds of glass with refractive indexes, and is divided into a tangible bifocal eyeglass and an intangible bifocal eyeglass, and a tangible bifocal sheet; one is adhesive, a small piece with different degrees is attached to the lower part of the large lens, the interface of the small piece is clear, the sight line is affected, and the small piece is easy to fall off; the other is a line double-light lens, two different refractive powers are ground on the blank, and a transverse line interface is arranged in the middle to influence the sight.

Most of the existing bifocal lenses are usually smooth at the outer part, and no special fixing mechanism is provided, so that the fixing between the bifocal lenses and the lens frame is too single, and a user may drop off when wearing the bifocal lenses, so that the bifocal lenses are provided by those skilled in the art to solve the problems in the background art.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a bifocal spectacle lens, wherein the tightness of the bifocal spectacle lens is improved when the bifocal spectacle lens is arranged in a spectacle frame through a plurality of clamping teeth arranged on the periphery of the outer part of a lens mechanism, and the corresponding clamping grooves in the spectacle frame are clamped through the clamping teeth, so that the lens cannot fall down due to looseness when the spectacles are worn, and the dizziness caused when the degree is switched is relieved through gradual change of the lens.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a bifocal spectacle lens comprises a lens mechanism, wherein a plurality of clamping teeth are fixedly arranged on the outer end surface of the lens mechanism;

the lens mechanism comprises a lens main body and a lens main layer, wherein a hardening layer is fixedly arranged on the front end surface of the lens main layer, and a color-changing layer is fixedly arranged on the front end surface of the hardening layer;

through above-mentioned technical scheme, through the outside fastening nature of lens installation in the picture frame that sets up around the latch of lens mechanism, the lens drops when reducing wearing glasses possibility to increase the hardness of lens through the stiffening layer that sets up before the lens principal layer, reduce the possibility of breaking when the lens drops.

Further, an upper visual area is arranged at the position close to the upper side in the lens main body, and a lower visual area is arranged at the position close to the lower side in the lens main body;

through the technical scheme, the glasses are more convenient to use and do not need to be replaced frequently because the high-power lenses arranged in the upper visual area are used for watching far distances and the low-power lenses arranged in the lower visual area are used for watching near distances.

Further, an upper viewing zone is internally provided with an upper viewing lens, and a first prism is arranged in the upper viewing zone;

through the technical scheme, the upper vision lens arranged in the upper vision area is a high-degree lens, so that a user can watch a far place conveniently, and the first prism is used for assisting in watching.

Further, a lower view lens is arranged in the lower visual area, and a second prism is arranged in the lower view lens;

through the technical scheme, the lower vision lens arranged in the lower vision area is a low-degree lens, so that a user can watch near the lens conveniently, and the second prism is used for assisting in watching.

Further, a gradual change region is arranged in the middle of the inside of the lens main body, and a gradual change lens is arranged in the gradual change region;

through the technical scheme, the gradual change lens degree that the gradual change district inside set up is from top to bottom to help eyes adaptation degree's change, reduces the giddiness sense that the quick switch leads to.

Further, a convex lens is arranged at the position close to the upper side in the lens main body, and a concave lens is arranged at the position close to the lower side in the lens main body;

through above-mentioned technical scheme, watch far away through the assistance of convex mirror, watch near by concave mirror for glasses use more practical.

Further, the front end face of the color-changing layer and the rear end face of the lens main layer are fixedly provided with anti-slip layers;

through above-mentioned technical scheme, increase the frictional force of lens through the skid resistant course that discolours the layer front side and set up, reduce the possibility that drops when installing.

Further, the lens main layer is made of a PC material, the stiffening layer is made of a resin material, and the color-changing layer is made of a silver halide microcrystal material;

through the technical scheme, the main lens layer is made of PC materials and has the advantages of excellent super impact resistance, 100% ultraviolet resistance and no yellowing within 3-5 years, the hardening layer is made of resin materials and has the advantages of light weight, wear resistance, light transmittance of 98% after film addition and strong impact resistance, and the manufacturing of the color-changing layer reduces uncomfortable feeling caused by direct sunlight.

The utility model has the following beneficial effects:

1. according to the bifocal spectacle lens provided by the utility model, the tightness of the bifocal spectacle lens when the bifocal spectacle lens is arranged in the spectacle frame is increased by the plurality of clamping teeth arranged around the outer part of the lens mechanism, and the corresponding clamping grooves in the spectacle frame are clamped by the clamping teeth, so that the lens cannot fall down due to looseness when the spectacles are worn.

2. According to the bifocal spectacle lens provided by the utility model, different distances are watched through the upper viewing lens and the lower viewing lens which are arranged on the lens, the dizziness caused by switching degrees is relieved through the gradual change lens, the strength of the lens is not easy to damage when the lens falls down through the hardening layer and the color changing layer, and the discomfort caused by direct sun is reduced.

Drawings

FIG. 1 is an isometric view of a bifocal ophthalmic lens according to the present utility model;

FIG. 2 is a schematic front view of a progressive lens of a bifocal ophthalmic lens according to the present utility model;

FIG. 3 is a schematic front view of a convex lens of a bifocal ophthalmic lens according to the present utility model;

fig. 4 is a schematic structural diagram of a bifocal ophthalmic lens according to the present utility model.

Legend description:

1. a lens mechanism; 2. latch teeth; 101. a lens body; 102. a lower viewing zone; 103. a gradual change region; 104. an upper viewing zone; 105. a first prism; 106. an upper viewing lens; 107. a progressive lens; 108. a lower vision lens; 109. a second prism; 110. concave mirror; 111. a convex mirror; 112. an anti-slip layer; 113. a color-changing layer; 114. adding a hard layer; 115. a lens primary layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, one embodiment provided by the present utility model is: a bifocal spectacle lens comprises a lens mechanism 1, wherein a plurality of clamping teeth 2 are fixedly arranged on the outer end surface of the lens mechanism 1 so as to increase the tightness when being arranged on a spectacle frame and prevent the lens from falling off easily;

the lens mechanism 1 includes lens main part 101 and lens main layer 115, the fixed stiffening layer 114 that is provided with of terminal surface before the lens main layer 115, the stiffening layer 114 that uses resin material to make has increased the bulk strength of lens, it is cracked when avoiding dropping, the fixed discomfortableness that is provided with of stiffening layer 114 preceding terminal surface reduces the sunshine through the layer 113 that discolours and directly leads to the fact when penetrating, increase the fastening nature of lens installation in the picture frame through the latch 2 that lens mechanism 1 outside set up all around, reduce the possibility that the lens dropped when wearing glasses, and increase the hardness of lens through stiffening layer 114 that sets up before the lens main layer 115, reduce the possibility that the lens falls and break.

The inside upper view area 104 that is provided with of lens main part 101 is provided with down vision area 102 by the upside position in the inside of lens main part 101, watches far away through the high degree lens that upper view area 104 set up, and the low degree lens that lower view area 102 set up is watched near for glasses use is more convenient, need not frequently change, and the inside upper view lens 106 that is provided with of upper view area 104 watches far away through upper view lens 106, and upper view lens 106 inside is provided with first prism 105 in the inside of upper view lens 106, and the inside upper view lens 106 that sets up of upper view area 104 is high degree lens, and the person of facilitating the use watches far away to watch through first prism 105 assistance.

The inside lower vision area 102 is provided with down vision lens 108, look through plating the near of lower vision lens 108, the inside second prism 109 that is provided with of lower vision lens 108, the inside lower vision lens 108 that sets up of lower vision area 102 is the lens of low number of degrees, the user watches near, and look is assisted through second prism 109, the inside intermediate position of lens main part 101 is provided with graded region 103, graded region 103 inside is provided with graded lens 107, graded lens 107 from the top down number of degrees constantly reduces, help the adaptation of eyes, the giddiness sense that produces when reducing the change number of degrees, graded lens 107 number of degrees from the top down that graded region 103 inside set up is from the top down to help the change of eye adaptation number of degrees, the giddiness sense that reduces the quick switch and leads to.

The convex mirror 111 is arranged at the position close to the upper side in the lens main body 101, the concave mirror 110 is arranged at the position close to the lower side in the lens main body 101, the far side is watched through the assistance of the convex mirror 111, the near side is watched through the concave mirror 110, the glasses are more practical to use, the anti-slip layers 112 are fixedly arranged on the front end face of the color-changing layer 113 and the rear end face of the main lens layer 115, the friction force of the lenses is increased through the anti-slip layers 112 arranged on the front side of the color-changing layer 113, the possibility of dropping during installation is reduced, the main lens layer 115 is made of PC materials, the stiffening layer 114 is made of resin materials, the color-changing layer 113 is made of silver halide microcrystal materials, the main lens layer 115 is made of PC materials and has the advantages of super impact resistance and 100% ultraviolet resistance, yellowing within 3-5 years, the stiffening layer 114 is made of resin materials and has the advantages of light wear resistance, the light transmittance can reach 98% after film addition, the impact resistance is strong, and the discomfort caused by direct sunlight is reduced.

Working principle: the corresponding clamping grooves in the glasses frame are clamped through the clamping teeth 2 arranged on the periphery of the outer portion of the lens mechanism 1, the tightness of the lens mechanism 1 is increased, the situation that a user falls when wearing glasses is avoided, a plurality of areas are arranged in the lens main body 101, the user views the glasses far away through the upper viewing lens 106, views the glasses near through the lower viewing lens 108, the dizziness caused when the angle of the eyes is changed up and down is slowed down through the gradual change lens 107, the strength of the lenses is increased through the stiffening layer 114, and the discomfortableness caused when the direct sunlight is reduced through the color changing layer 113.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A bifocal ophthalmic lens comprising a lens mechanism (1), characterized in that: a plurality of clamping teeth (2) are fixedly arranged on the outer end surface of the lens mechanism (1);

the lens mechanism (1) comprises a lens main body (101) and a lens main layer (115), wherein a hardening layer (114) is fixedly arranged on the front end surface of the lens main layer (115), and a color-changing layer (113) is fixedly arranged on the front end surface of the hardening layer (114).

2. A bifocal ophthalmic lens according to claim 1, wherein: an upper visual zone (104) is arranged at the position close to the upper side in the lens main body (101), and a lower visual zone (102) is arranged at the position close to the lower side in the lens main body (101).

3. A bifocal ophthalmic lens according to claim 2, characterized in that: an upper viewing zone (104) is internally provided with an upper viewing lens (106), and the upper viewing lens (106) is internally provided with a first prism (105).

4. A bifocal ophthalmic lens according to claim 2, characterized in that: a lower vision lens (108) is arranged in the lower vision area (102), and a second prism (109) is arranged in the lower vision lens (108).

5. A bifocal ophthalmic lens according to claim 1, wherein: the middle position inside the lens main body (101) is provided with a gradual change region (103), and the gradual change region (103) is internally provided with a gradual change lens (107).

6. A bifocal ophthalmic lens according to claim 1, wherein: a convex mirror (111) is arranged at the position close to the upper side inside the lens main body (101), and a concave mirror (110) is arranged at the position close to the lower side inside the lens main body (101).

7. A bifocal ophthalmic lens according to claim 1, wherein: the front end face of the color-changing layer (113) and the rear end face of the lens main layer (115) are fixedly provided with anti-slip layers (112).

8. A bifocal ophthalmic lens according to claim 1, wherein: the lens main layer (115) is made of a PC material, the stiffening layer (114) is made of a resin material, and the color-changing layer (113) is made of a silver halide microcrystal material.