Unstressed polarized bifocal lens

Abstract

The utility model relates to the technical field of spectacle lenses, in particular to an unstressed polarized bifocal lens which comprises a spectacle frame, two lenses are mounted in the spectacle frame, and two supporting legs are further mounted on the rear side of the spectacle frame; each lens comprises two polarizers, a polarizing film is arranged between the two polarizers, and the internal structure of the polarizing film is of a linear or wavy structure; a scratch-proof protective film layer is arranged on the outer side of each polaroid, and a hyperopia presbyopia area is further arranged between the polaroid on the rear side and the scratch-proof protective film layer. According to the bifocal lens, the internal structure of the polarizing film made of the PVC material is of a linear or wave-shaped structure, the polarizing film cannot be influenced under the action of stress, the stress-free effect of the lens is achieved, meanwhile, the hyperopia presbyopia area is further arranged, the bifocal lens can be used by people with presbyopia, and the bifocal lens is high in functionality, good in practicability and capable of being applied to various scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of eyeglass lenses, in particular to a stress-free polarized bifocal lens. Background Art

[0002] Glasses are a tool for vision correction and can also be a fashion accessory. They help improve vision problems such as hyperopia, myopia and astigmatism. Current glasses lenses are easily affected by stress, which may cause astigmatism, visual fatigue and other problems after wearing the lenses. Therefore, those skilled in the art provide a stress-free polarized bifocal lens to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a stress-free polarized bifocal lens, comprising a frame, two lenses are installed in the frame, and two legs are installed on the rear side of the frame;

[0004] The lens includes two polarizers, a polarizing film is arranged between the two polarizers, and the internal structure of the polarizing film is a linear or wavy structure;

[0005] Each polarizer is provided with an anti-scratch protective film layer on the outside, and a hyperopia and presbyopia area is provided between the rear polarizer and the anti-scratch protective film layer.

[0006] Preferably, the polarizing film is made of PVC.

[0007] Preferably, the polarizer is made of triacetyl cellulose sheet, and nylon optical material is added to the polarizer.

[0008] Preferably, an anti-ultraviolet layer is also provided on the outer side of the anti-scratch protective film layer on the front side.

[0009] Preferably: the anti-ultraviolet layer is coated with a layer of anti-ultraviolet UV powder on the anti-scratch protective film layer by a spraying process.

[0010] Preferably, the polarizer, polarizing film, anti-scratch protective film layer and hyperopia presbyopia area are bonded and fixed by optical UV glue.

[0011] Technical effects and advantages of the utility model:

[0012] The polarizing film of PVC material in the bifocal lens of the utility model has an internal structure of a linear or wavy structure, which will not be affected when stress acts, thereby achieving stress-free lenses. At the same time, a hyperopia and presbyopia area is also provided, so that people with presbyopia can also use the lens. The lens has strong functionality and good practicality and can be applied in various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural schematic diagram of a stress-free polarized bifocal lens provided in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the decomposition of a lens in a stress-free polarized bifocal lens provided in an embodiment of the present application. Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the decomposition of a lens in a stress-free polarized bifocal lens provided in an embodiment of the present application. Figure 2 .

[0016] In the figure:

[0017] 1. Frame; 2. Lens; 3. Leg; 21. Polarizer; 22. Polarizing film; 23. Anti-scratch protective film layer; 24. Anti-ultraviolet layer; 25. Hyperopia and presbyopia area. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] Example

[0020] See also Figure 1 to Figure 3 In this embodiment, a stress-free polarized bifocal lens is provided, comprising a frame 1, two lenses 2 are installed in the frame 1, the lenses 2 have polarized and presbyopic effects, and are highly functional. At the same time, two legs 3 are installed on the rear side of the frame 1 for the convenience of users to wear;

[0021] In the specific structure, the lens 2 includes two polarizers 21, and a polarizing film 22 is arranged between the two polarizers 21. It should be particularly noted that the internal structure of the polarizing film 22 is a linear or wavy structure, and is made of PVC. The design of this structure can ensure that the entire lens 2 will not be affected when subjected to stress, and thus will not have problems such as astigmatism, thereby achieving a stress-free effect;

[0022] The polarizer 21 is made of triacetyl cellulose sheet, and nylon optical material is added to the polarizer 21 to increase the toughness of the polarizer 21;

[0023] Moreover, an anti-scratch protective film layer 23 is provided on the outer side of each polarizer 21, which protects the lens 2 and prevents other objects from damaging the lens 2. At the same time, a hyperopia presbyopia area 25 is provided between the rear polarizer 21 and the anti-scratch protective film layer 23, which can achieve stress-free and better effects for people with presbyopia, bringing convenience to users.

[0024] The outer side of the front anti-scratch protective film layer 23 is also provided with an anti-ultraviolet layer 24, which can make the lens 2 have an anti-ultraviolet effect, increase its functionality and practicality, and the anti-ultraviolet layer 24 is a layer of anti-ultraviolet UV powder coated on the anti-scratch protective film layer 23 by a spraying process;

[0025] When the lens 2 is processed, optical UV glue is used to bond and fix the polarizer 21, the polarizing film 22, the anti-scratch protective film layer 23 and the hyperopia presbyopia area 25. The use of optical UV glue can increase the bonding strength.

[0026] The internal structure of the polarizing film 22 made of PVC in the bifocal lens of the utility model is a linear or wavy structure, which will not be affected when stress acts, so that the lens 2 is stress-free. At the same time, a hyperopia and presbyopia area 25 is also provided, so that it can also be used by people with presbyopia. It has strong functionality and good practicality and can be applied in various scenes, such as fishing, cycling, reading, etc.

[0027] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A stress-free polarized bifocal lens, comprising a frame (1), two lenses (2) are mounted in the frame (1), and two legs (3) are mounted on the rear side of the frame (1). Features: The lens (2) comprises two polarizing plates (21), a polarizing film (22) is arranged between the two polarizing plates (21), and the internal structure of the polarizing film (22) is a linear or wavy structure; An anti-scratch protective film layer (23) is provided on the outer side of each polarizer (21), and a hyperopia presbyopia area (25) is provided between the rear polarizer (21) and the anti-scratch protective film layer (23).

2. A stress-free polarized bifocal lens according to claim 1, It is characterized in that The polarizing film (22) is made of PVC material.

3. The stress-free polarized bifocal lens according to claim 1, It is characterized in that The polarizer (21) is made of triacetyl cellulose sheet, and nylon optical material is also added to the polarizer (21).

4. The stress-free polarized bifocal lens according to claim 1, It is characterized in that An anti-ultraviolet layer (24) is also provided on the outer side of the anti-scratch protective film layer (23) on the front side.

5. The stress-free polarized bifocal lens according to claim 4, It is characterized in that The anti-ultraviolet layer (24) is coated with a layer of anti-ultraviolet UV powder on the anti-scratch protective film layer (23) through a spraying process.

6. The stress-free polarized bifocal lens according to claim 1, It is characterized in that The polarizer (21), the polarizing film (22), the anti-scratch protective film layer (23) and the hyperopia and presbyopia area (25) are bonded and fixed by using optical UV glue.

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