Optical: systems and elements – Lens
Reexamination Certificate
2007-06-12
2007-06-12
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Lens
C359S206100, C359S662000
Reexamination Certificate
active
10915837
ABSTRACT:
A lens has a lens body (1), reinforcing extensions (3a,3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as most polymers, particularly acrylate polymers. Aluminum sheets as vapor barriers are attached on each side of the lens body. This results in excellent resistance to change or distortion in high humidity environments.
REFERENCES:
patent: 4523801 (1985-06-01), Baba et al.
patent: 6807011 (2004-10-01), Cannon et al.
patent: 2003/0021307 (2003-01-01), Yamazaki
patent: 01100510 (1989-04-01), None
patent: 07325206 (1995-12-01), None
Cannon Roger Steven
Dodds Dana Allen
Heink Philip Jerome
Paterson Robert LeRoy
Pawley Daniel Eugene
Coats & Bennett
Lexmark International Inc.
Sugarman Scott J.
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