Method for manufacturing lens mold

Details Method for manufacturing lens mold Method for manufacturing lens mold

2011-08-02

2011-08-02

Vargot, Mathieu D. (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Including step of mold making

C264S001360, C264S227000, C425S808000, C430S321000

Reexamination Certificate

active

07988890

ABSTRACT:
In a method for manufacturing a lens mold, a raw mold is provided. The raw mold defines a cavity therein. The cavity defines a raw molding surface. The raw molding surface includes a molding surface portion. The molding surface portion includes a center. Photoresist material is filled in the cavity, covering the molding surface portion. A photo mask is provided. The photo mask defines a through hole. The size through hole is the same as the molding surface portion of the lens mold. The photo mask is placed above the photoresist material with the through hole aligned with the center. The photoresist material is exposed and developed to form a photoresist portion. A rigid molding material is filled in the cavity. The resist portion is removed to expose the molding surface.

REFERENCES:
patent: 7005243 (2006-02-01), Chen
patent: 7147993 (2006-12-01), Leu et al.
patent: 2005/0142499 (2005-06-01), Chen
patent: 2010/0248161 (2010-09-01), Louh

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