Excess polymer ring removal during ophthalmic lens manufacture

Details Excess polymer ring removal during ophthalmic lens manufacture Excess polymer ring removal during ophthalmic lens manufacture

2011-01-25

2011-01-25

Vargot, Mathieu D. (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

C264S001380, C264S002500, C425S808000

Reexamination Certificate

active

07875217

ABSTRACT:
The present invention includes molds for forming ophtalmic lenses, such as contact lens. In particular, the present invention relates to apparatus, molds and methods for fashioning an ophthalmic lens with a mold assembly that includes two or more mold parts with at least one of the mold parts including a flange surface and a static charge differential between each mold part, including the flange surface.

REFERENCES:
patent: 5882698 (1999-03-01), Su et al.
patent: 5894002 (1999-04-01), Boneberger et al.
patent: 6951894 (2005-10-01), Nicohlson et al.
patent: 2006/0116437 (2006-06-01), Turek et al.
patent: 1629960 (2006-03-01), None
patent: 2004171 (1969-11-01), None

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