Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1997-08-26
1999-06-01
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 17, 264 27, B29D 1100
Patent
active
059085860
ABSTRACT:
Method for correcting aberrations of an optical system and solving the problem of tolerance buildup. The method posits a desired specification limit for each of at least one optical characteristic of an optical element, and requires embossing at least a portion of a surface of the optical element for bringing the or each optical characteristic within its corresponding specification limit.
REFERENCES:
patent: 3922327 (1975-11-01), Howden
patent: 4902100 (1990-02-01), Reynolds et al.
Hobbs Philip Charles Danby
van Kessel Theodore G.
International Business Machines - Corporation
Kaufman, Esq. Stephen C.
Vargot Mathieu D.
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