Radiant energy – Photocells; circuits and apparatus – Housings
Patent
1997-02-13
1998-08-11
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Housings
250221, G01V 904
Patent
active
057930376
ABSTRACT:
Photoelectric detector fitted with an optical unit having lenses focused along optical axes of transmitting and receiving components 15, 16 and with an electronic circuit 14 on one edge of which are fixed the components. A reflection head 30 is fixed in sealed manner to body 10 of the detector, said head comprising a prism preferably with total reflection 32 inserted into hood 31 with an air space maintained between reflection surface 32a of the prism and front surface 31a of the hood.
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patent: 5254855 (1993-10-01), Mathivat et al.
W. B. Archey, et al, "Low Loss Optical Coupler", IBM Technical Disclosure Bulletin, vol. 22, No. 12, May 1980, pp. 5288-5290.
Patent Abstracts of Japan, vol. 18, No. 253, Oct. 2, 1994, p. 1.
Guillot Alain
Maurin, deceased Jacques
Maurin, executrix Karine
Allen Stephone B.
Schneider Electric SA
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