Unicell photoelectric photometer

Details Unicell photoelectric photometer Unicell photoelectric photometer

1977-03-30

1978-07-25

Corbin, John K.

Optics: measuring and testing

Photometers

Photoelectric

250237R, G01J 142, H01J 314

Patent

active

041025814

ABSTRACT:
A unicell photometer of the photoelectric type having a single tilted plano-convex lens with a series of spaced prisms integrated with the plano surface to provide the photometer with different horizontal and vertical specific acceptance angles while simultaneously aiming the field of view of the photometer below the horizontal plane.

REFERENCES:
patent: 2227166 (1940-12-01), Tonnies
patent: 2248758 (1941-07-01), Higonnet et al.
patent: 3062964 (1962-11-01), Lubin
patent: 3134021 (1964-05-01), Ploke
patent: 3162766 (1964-12-01), Ploke
patent: 3442191 (1969-05-01), Harvey
patent: 4040751 (1977-08-01), Baker et al.

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