Process of making mold for optical film

Details Process of making mold for optical film Process of making mold for optical film

2011-07-26

2011-07-26

Vargot, Mathieu D. (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Including step of mold making

C264S001370, C264S219000, C264S400000, C425S808000

Reexamination Certificate

active

07985358

ABSTRACT:
There is provided a process of making a mold for optical films. The process of making a mold for optical films comprises: etching a stereostructure in a surface of the mold having a flat surface or an engraved convex and concave surface, by using a laser beam. The process of making a mold for optical films may be useful to easily mark spots, to control the height of protrusions and the position where the protrusions are formed, and also to form the protrusions having constant depths even in a curved surface such as a convex and concave surface.

REFERENCES:
patent: 2004-322566 (2004-11-01), None
patent: 2005-324538 (2005-11-01), None
patent: 2006-053371 (2006-02-01), None
patent: 2006-168260 (2006-06-01), None
patent: 2007-237541 (2007-09-01), None
patent: 2007-298911 (2007-11-01), None

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