Apparatus for compensating for thermally introduced distortions

Details Apparatus for compensating for thermally introduced distortions Apparatus for compensating for thermally introduced distortions

1977-04-14

1979-05-22

Henry, Jon W.

G02B 718, G02B 508

Patent

active

041556313

ABSTRACT:
The invention is concerned with novel pre-stressing of a reflecting surface such as a mirror, that is to be irradiated by a high energy laser beam or similar source, in such a manner that the beam-induced heating of the reflective surface causes a relaxation of the pre-stress that is designed to produce a surface distortion substantially equal and opposite to that caused by the heating.

REFERENCES:
patent: 1530441 (1925-03-01), Thomson
patent: 3555450 (1971-01-01), Rockwell
patent: 3731992 (1973-05-01), Mansell
patent: 3781095 (1973-12-01), Rushing et al.

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