Hermetically sealed polished optical surface

Details Hermetically sealed polished optical surface Hermetically sealed polished optical surface

1994-12-08

1996-03-05

Nguyen, Thong Q.

Optical: systems and elements

Protection from moisture or foreign particle

Sealing

359507, G02B 110

Patent

active

054972680

ABSTRACT:
A method and apparatus for protecting polished surfaces of optical crystals includes placing a thin film of index-matching liquid between the polished surface and an optical flat, and hermetically sealing the liquid in place.

REFERENCES:
patent: 4316204 (1982-02-01), Inagaki et al.
patent: 5048942 (1991-09-01), Ohbayashi
Immersion Lens Assembly for Diode Laser--24231.
"Lens design fundamentals", Kingslake, Academic Press, New York, San Francisco, London 1978.
"Principles of Optics", Born et al. The MacMillan Company, New York, 1964, pp. 252-253.
English abstract of the Japanese Reference No. 56-28571.

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