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Manufacturing method of polarized lens and structure of polarized lens

A technology of polarizing lenses and manufacturing methods, applied in glasses/goggles, optics, optical components, etc., can solve the problems of optical condition stability and lack of lens internal stress, which cannot be taken into account, and achieve both good lens internal stress characteristics and optical Conditional stability combined with excellent results

Active Publication Date: 2013-05-08
XIAMEN JS POLARIZERS TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The manufacturing processes of the above-mentioned polarized lenses have some deficiencies, the stability of optical conditions and the internal stress of the lens are either missing, or they cannot be balanced

Method used

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  • Manufacturing method of polarized lens and structure of polarized lens
  • Manufacturing method of polarized lens and structure of polarized lens
  • Manufacturing method of polarized lens and structure of polarized lens

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Embodiment Construction

[0024] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] The applicant analyzed and tested several existing manufacturing processes of polarized lenses and found the following:

[0026] 1. In the existing manufacturing processes A) and B), PC lenses are used, so the internal stress of PC polarized lenses is relatively large. refer to figure 1 As shown, it is the internal stress test of the polarized lens manufactured by the manufacturing process B). It can be seen from the test results that the polarized lens has a very obvious rainbow, indicating that the internal stress of the lens is relatively large.

[0027] 2. In C) and D) of the existing manufacturing process, nylon lenses are used. Although the performance of nylon lenses is higher than that of PC lenses, there are still some internal stresses. refer to figure 2 As shown, it is the internal stress test of the polarized lens manufactured ...

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Abstract

The invention relates to the improvement on a lens manufacturing process. A manufacturing method of a polarized lens comprises the following steps of: A. cutting: selecting a polarized membrane and cutting the polarized membrane into a membrane size for producing the lens; B. coating: uniformly coating a bonding agent on one surface of the polarized membrane with the cut size; C. bending the membrane: carrying out extending and stretching on the polarized membrane coated with the bonding agent to meet the surface curvature of a lower mould of a mould; D. injecting glue: placing and fixing the bent membrane on the surface of the lower mould; and after an upper mould and the lower mould are combined, ejecting fused liquid from a cavity, wherein the temperature of the fused liquid is 220-260 DEG C; E. de-molding: after cooling, taking out a molded polarized lens semi-finished-product from the mould; and F. hardening: carrying out surface hardening treatment on the polarized lens semi-finished-product. The polarized lens structurally comprises a polarized membrane layer, a glue layer and a lens layer which are overlapped in sequence. The manufacturing method of the polarized lens, disclosed by the invention, can manufacture the polarized lens with excellent optical condition stability and an excellent lens inner stress function.

Description

technical field [0001] The invention relates to the improvement of the lens manufacturing process, in particular to a method for manufacturing a polarized lens and a structure of the polarized lens. Background technique [0002] In order to filter the glare of the sun in the same direction on the water surface, land or snow, people generally wear polarized glasses, which are formed by processing the polarized bare chip into a suitable size lens and installing it in the frame. The effect of polarized glasses is to use the characteristics of polarized lenses - that is, only light of a certain polarization direction in natural light is allowed to pass through. Polarized lenses are formed by attaching a layer of polarizing film to ordinary optical lenses. Optical lenses can be made of glass or polymer materials. Compared with glass materials, polymer materials are lighter in weight and easier to produce and process. Therefore, polymer material lenses have been widely used and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00G02B5/30G02C7/12
Inventor 吴俊男
Owner XIAMEN JS POLARIZERS TECH
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