Radiant energy – Photocells; circuits and apparatus – Housings
Patent
1978-01-27
1979-11-06
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Housings
H01J 502
Patent
active
041737172
ABSTRACT:
An optical assembly comprising a spherically shaped optical module. A flexure member cooperates with a portion of a supporting housing to support the module for rotation in two mutually perpendicular planes. The assembly is particularly useful in photoelectric beam systems commonly known as "electric eyes".
REFERENCES:
patent: 3653021 (1972-03-01), Litman et al.
patent: 3679906 (1972-07-01), Myers
patent: 4021665 (1977-05-01), Haas et al.
Detection Systems Inc.
Kurz Warren W.
Nelms David C.
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