1974-05-13
1976-01-13
Smith, Alfred E.
350288, 350292, 350299, G02B 508
Patent
active
039320294
ABSTRACT:
Optical surface distorting thermal stresses are significantly reduced in an optical reflector by a structure consisting of a plurality of hollow reflector cells. Each cell has a light reflecting surface arranged to provide a composite continuous reflecting surface for an incident optical wavefront. Each reflector cell includes an internally located feeder tube which directs a flow of coolant from a manifold distribution system against internal cell walls.
REFERENCES:
patent: 291147 (1884-01-01), Calver
patent: 2987961 (1961-06-01), Cotton et al.
patent: 3781094 (1973-12-01), Griest
Evans F. L.
Norton Edward J.
RCA Corporation
Smith Alfred E.
Squire William
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