Optical component

Details Optical component Optical component

2005-03-08

2005-03-08

Nakarani, D. S. (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C359S581000, C359S582000, C359S586000, C359S587000, C428S216000, C428S336000, C428S412000, C428S451000, C428S521000, C428S522000, C428S523000

Reexamination Certificate

active

06863965

ABSTRACT:
This optical component includes a film formation substrate made of plastic, a magnesium fluoride film formed at an upper side of the film formation substrate and a first silicon oxide film formed on the magnesium fluoride film. The magnesium fluoride film may be formed on a surface of the film formation substrate. Alternatively, the optical component further may include a second silicon oxide film formed on a surface of the film formation substrate and between the film formation substrate and the magnesium fluoride film. The optical component can be realized, which is excellent in film adhesiveness, mechanical strength, drug resistance, environment resistance, and the like, as well as optical characteristics, and which is also excellent in productivity, film formation operability, cost, and the like.

REFERENCES:
patent: 4196246 (1980-04-01), Takayama et al.

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