Progressive multi-focal polarized lens made of light and thin tempered glass

Abstract

The invention belongs to the field of optical lenses and particularly relates to a progressive multi-focal polarized lens made of light and thin tempered glass. The progressive multi-focal polarized lens comprises a first coating layer, a second coating layer, a first glue layer, a second glue layer, a progressive multi-focal sheet layer, a B thin-sheet layer and a polarizing film layer, wherein the convex surface of the first coating layer is connected with the concave surface of the B thin-sheet layer, the convex surface of the B thin-sheet layer is connected with the concave surface of the first glue layer; the convex surface of the first glue layer is connected with the concave surface of the polarizing film layer; the convex surface of the polarizing film layer is connected with the concave surface of the second glue layer; the convex surface of the second glue layer is connected with the concave surface of the progressive multi-focal sheet layer; the convex surface of the progressive multi-focal sheet layer is connected with the concave surface of the second coating layer. The polarizing film layer is simple in structure and practical, can overcome the defects such as uncontinuous view, breaking of a visible image, blurred vision in middle distance and the like caused during conversion of a bi-focal lens between a distance vision and near vision, and is suitable for mid-aged and old people.

Description

technical field [0001] The invention belongs to the field of optical lenses, in particular to a light and thin tempered glass progressive multi-focus polarizing lens. Background technique [0002] Presbyopia is a major visual defect in the elderly population. Presbyopic wearers need vision correction at different distances, such as distance, middle distance, and near vision. Therefore, it is required to integrate different refractive correction functions into the same lens to form glasses with multiple focal points. Progressive multifocal ophthalmic lenses can meet the needs of both distance vision and near vision, and also overcome the discontinuity of vision, broken images, and inconsistencies in middle-distance vision when people use bifocals to switch between far and near vision. Clear and other defects; At present, progressive multi-focal ophthalmic lenses have been widely used in major western countries, and are increasingly widely used in large and medium-sized cities...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art that the progressive multifocal polarizing lens is easy to be damaged and has a short service life due to oxidation, the object of the present invention is to provide a progressive multifocal polarizing lens made of light and thin tempered glass. The lens structure of the present invention is simple and practical, not only durable Smooth grinding, anti-oxidation, and the use of light and thin materials is convenient for people to use. In addition, the lens of the present invention has a longer service life

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