Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Optical fiber – waveguide – or preform
Patent
1989-10-23
1991-12-10
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Optical fiber, waveguide, or preform
264 19, 264 81, B29D 1100
Patent
active
050715968
ABSTRACT:
A process to fabricate lightweigth ceramic mirrors, and in particular, silicon/silicon carbide mirrors, involves three chemical vapor deposition steps: one to produce the mirror faceplate, the second to form the lightweight backstructure which is deposited integral to the faceplate, and the third and final step which results in the deposition of a layer of optical grade material, for example, silicon, onto the front surface of the faceplate. The mirror figure and finish are fabricated into this latter material.
REFERENCES:
patent: 4142006 (1979-02-01), Choyke et al.
patent: 4378626 (1983-04-01), Eitel
patent: 4444467 (1984-04-01), Shuskus et al.
patent: 4814232 (1989-03-01), Bluege et al.
Goela Jitendra S.
Taylor Raymond L.
CVD Incorporated
Fiorilla Christopher A.
Lowe James
White Gerald K.
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