Humidity tolerant scan lens

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 barr...

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Bibliographic Details
Main Authors CANNON ROGER STEVEN, DODDS DANA ALLEN, PATERSON ROBERT LEROY, PAWLEY DANIEL EUGENE, HEINK PHILIP JEROME, ROUTT WILSON MORGAN
Format Patent
LanguageEnglish
Published 22.07.2004
Edition7
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary: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.
Bibliography:Application Number: US20030346203