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A kind of manufacturing method of double diopter glasses

A manufacturing method and diopter technology, applied in glasses/goggles, optics, optical components, etc., can solve problems such as unsightly appearance, prism jumping, bifocal lens spacing, etc.

Active Publication Date: 2019-04-16
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose is to realize switchable adjustment of two diopters of spectacle lenses, and to solve the problems of obvious intervals between different areas of bifocal lenses in the prior art, unsightly appearance, prismatic jumping phenomenon, dizziness when going up and down stairs, etc.

Method used

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  • A kind of manufacturing method of double diopter glasses
  • A kind of manufacturing method of double diopter glasses
  • A kind of manufacturing method of double diopter glasses

Examples

Experimental program
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Effect test

example 1

[0079] Example 1, such as Figure 7 As shown, the user needs to be equipped with myopia glasses with a normal diopter of 200 degrees and a second diopter of 150 degrees, that is, the first diopter is -2D, the second diopter is -1.5D, and the double diopter difference is -0.5D. In the figure, from bottom to top are the first lens substrate 101 , the liquid crystal layer 104 , and the second lens substrate 107 . Wherein, the lower surface of the first lens substrate 101 also uses polishing to fine-tune the lens diopter, and the radius of curvature of the upper and lower interfaces of the second lens substrate 107 is the same, and the diopter is 0.

[0080] The optical structure of the liquid crystal layer 104 is in the form of a concave-convex mirror, α=-1, and β=1; after the liquid crystal material is selected, the birefringence of the liquid crystal and the difference between the birefringence of the liquid crystal are determined, assuming that the first refractive index of ...

example 2

[0085] Example 2, such as Figure 8 As shown, the user needs to be equipped with reading glasses with a normal diopter of 100 degrees and a second diopter of 50 degrees, that is, the first diopter is +1D, the second diopter is +0.5D, and the double diopter difference is 0.5D. In the figure, from bottom to top are the first lens substrate 101 , the liquid crystal layer 104 , and the second lens substrate 107 . Wherein, the lower surface of the first lens substrate 101 also uses polishing to fine-tune the lens diopter, and the radius of curvature of the upper and lower interfaces of the second lens substrate 107 is the same, and the diopter is 0.

[0086] The optical structure of liquid crystal layer 104 selects the double-convex mirror form for use, α=1, β=1; Adopt because after the liquid crystal material is selected, the birefringence of liquid crystal and the difference of birefringence have just determined, suppose, the first refraction of liquid crystal The index is 1.8...

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Abstract

The invention discloses a manufacturing method of dual-diopter glasses. The manufacturing method of the dual-diopter glasses relates to the field of glasses manufacturing, and comprises the followingsteps of firstly, according to parameters of glasses to be prepared, selecting a first lens substrate and a second lens substrate, plating a first electrode and a second electrode, and generating an alignment film; then, photoetching support pillars, printing a border glue, and filling a liquid crystal; finally, cutting and polishing to generate dual-diopter lenses, and installing on a glasses frame. According to the manufacturing method of the dual-diopter glasses provided by the invention, a liquid crystal birefringence principle is utilized, and the dual-diopter glasses is manufactured, sothat two diopters of the liquid crystal can be switched, and different areas of the glasses have no space or a prism jumping phenomenon. According to the steps S1 to S6 provided by the invention, a photoetching process, a liquid crystal filling process and a screen printing plate process are contained, so that the yield is improved through volume production of a factory, and the production cost isreduced.

Description

technical field [0001] The invention relates to the field of manufacturing double diopter glasses, in particular to a method for manufacturing double diopter glasses. Background technique [0002] In the case of vision correction, it is often necessary to have two corrections in one pair of glasses. For example, when old people or presbyopic users read newspapers, they need to use presbyopic glasses (convex lenses) to watch them, and when looking at distant objects, they need to use flat mirrors to watch them. For another example, in adolescents with pseudomyopia, glasses with two degrees are also needed to avoid deepening myopia and correct vision. Users can adjust the degree of glasses by themselves to meet the needs of different scenarios. [0003] In the prior art, there is a bifocal lens (or bifocal lens), which grinds two different refractive powers on the same lens to become a lens in two regions, such as figure 2 shown. Its disadvantages are: it divides one lens i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/08G02F1/1333
CPCG02C7/083G02F1/1333
Inventor 李梅英
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY