Photoelectric switch

Details Photoelectric switch Photoelectric switch

1989-11-27

1991-07-09

Laroche, Eugene R.

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Plural periodic switches or multiple contact periodic switch

250214SW, H05B 3702

Patent

active

050308912

ABSTRACT:
A photoelectric switch having a light projector element (L) and a first oscillation circuit (2) for driving the light projector element by use of pulses includes a second oscillation circuit (4) and a coupling circuit (3) for coupling the second oscillation circuit with the first oscillation circuit. The second oscillation circuit sweeps an oscillation frequency of the first oscillation circuit at a predetermined period to vary the oscillation frequency of the first oscillation circuit in a periodical manner.

REFERENCES:
patent: 3886486 (1975-05-01), Maddox
patent: 3967111 (1976-06-01), Brown
patent: 4051411 (1977-09-01), Knoble
patent: 4075474 (1978-02-01), Straus et al.
patent: 4114071 (1978-09-01), Thrower
patent: 4295717 (1981-10-01), Kitagawa
patent: 4441053 (1984-04-01), Daspit
patent: 4675519 (1987-06-01), Price
patent: 4916362 (1990-04-01), Orenstein
patent: 4940889 (1990-07-01), Ono

Affiliated with

Also associated with

Rating

Photoelectric switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoelectric switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectric switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-620394