Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1976-10-21
1978-01-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
250216, 250347, 350 55, G01J 120
Patent
active
040705730
ABSTRACT:
A wide angle radiant energy detection apparatus arranged as a catadioptric assegrainian telescope having a plane secondary mirror is disclosed which utilizes a correcting lens as a structural support for the secondary mirror to reduce losses caused by mirror support structure vignetting. Angular resolution at wide field angles is increased by lenses which reduce oblique spherical aberation, spherical aberation, and coma, and by the more uniform energy distribution across the image field caused by the lack of vignetting optical support structure.
REFERENCES:
patent: 3872308 (1975-03-01), Hopson et al.
patent: 3954228 (1976-05-01), Davis
patent: 4030807 (1977-06-01), Briney
Allen Edwin M.
Fitzgerald William C.
Melsted Marino S.
Hennen Thomas
Miller Roy
Nelms David C.
Sciascia R. S.
The United States of America as represented by the Secretary of
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