Method of reducing optical coating absorptance

Details Method of reducing optical coating absorptance Method of reducing optical coating absorptance

1980-10-20

1986-08-26

Newsome, John H.

Coating processes

Electrical product produced

Welding electrode

427162, 427164, 427166, B05D 306

Patent

active

046082727

ABSTRACT:
A laser or other light beam is directed onto an optical substrate while an optical coating is being vacuum deposited thereon. The laser has a wavelength at or near that at which a reduced absorptance of the coating is desired. In one embodiment, the substrate is heated electrically. Thin film optical coatings having a substantially lowered absorptance are made in this manner.

REFERENCES:
patent: 3926508 (1975-12-01), Harmsen et al.
patent: 4024291 (1977-05-01), Wilmanns

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