METHOD OF INSERTING A LENS ELEMENT AND A LENS HAVING SUCH AN ELEMENT Russian patent published in 2020 - IPC G02C7/04 G02B1/04 B29D11/00 

Abstract RU 2733094 C2

FIELD: optics.

SUBSTANCE: method involves the following steps: obtaining differing reaction mixtures of a lens element and a lens, immersing a convex surface of optical quality of the forming optical element into a reservoir, containing a reaction mixture of a lens element, feeding actinic radiation and controlling it for voxel-by-voxel polymerisation or partial polymerisation of a portion of the reaction mixture of the lens element. Forming optical element and applied reaction mixture of lens element from reservoir are removed and immersed into second container with reaction mixture of lens; feeding actinic radiation and controlling it for voxel-by-voxel polymerisation or partial polymerisation of part of reaction mixture of lens, which surrounds polymerised or partially polymerised reaction mixture of lens element, extracting forming optical element from reaction mixture of lens and fixing radiation is supplied to form a contact lens.

EFFECT: technical result is improved method of inclusion of lens elements in contact lens due to formation of homogeneous lens structure.

33 cl, 9 dwg

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RU 2 733 094 C2

Authors

Wildsmith, Christopher

Sites, Peter W.

Kanaujia, Mukul

Wood, Joe M.

Dates

2020-09-29Published

2016-12-14Filed