Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1995-10-12
2000-07-18
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
250239, 257 81, G02B 2700
Patent
active
060910739
ABSTRACT:
Apparatus is described for transmitting signals between electric terminals through photo diodes to electrically isolate circuits connected to the terminals, which is compact and rugged. The apparatus includes a metal shell, (24, FIG. 2) a pair of circuit boards (40, 42) mounted in the shell and axially spaced apart, pairs of terminals (12, 14) with one terminal of each pair mounted on a different one of the circuit boards, and pairs of photo diodes or other optoelectric transducers (16, 18). Each transducer of a pair is mounted to a different circuit board and connected to a corresponding terminal, and the two transducers are aligned and extend toward each other. A separator element (90) of opaque material occupies most of the space between the circuit boards and has holes (92) that receive the two transducers of each pair. The separator element prevents the leakage of light between different pairs of transducers, and also helps to assure alignment of each pair of transducers.
REFERENCES:
patent: 3414733 (1968-12-01), Wunderman
patent: 3562527 (1971-02-01), Chaimowicz
patent: 4354115 (1982-10-01), Warabisako et al.
patent: 4401360 (1983-08-01), Streckman et al.
patent: 4634877 (1987-01-01), Wills
patent: 4776659 (1988-10-01), Mruk
patent: 4829192 (1989-05-01), Kokubu
patent: 5148243 (1992-09-01), Merrick et al.
patent: 5285076 (1994-02-01), Kusuda et al.
patent: 5296715 (1994-03-01), Kronberg
patent: 5299727 (1994-04-01), Kofler
Allen Stephone B.
ITT Corporation
Peterson Thomas L.
LandOfFree
Optoelectric coupler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optoelectric coupler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optoelectric coupler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2039012