Optical lens mold and method of making the mold

Details Optical lens mold and method of making the mold Optical lens mold and method of making the mold

1995-03-09

1997-03-18

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Including step of mold making

264 22, 264219, 264230, 425808, 249 82, 249155, B29D 1100

Patent

active

056119690

ABSTRACT:
In this method of making a mold for molding an optical lens an annular closure sleeve is fitted around two molding shells and cooperates with them to define the required molding cavity. The closure sleeve is made from a heat shrinkable synthetic material and is heated to shrink it onto the molding shells. Applications of the method include molds for molding ophthalmic lenses.

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