Multichannel position sensing detector

Details Multichannel position sensing detector Multichannel position sensing detector

1996-09-05

1998-03-03

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

2502062, 25055931, 356 301, G01V 800

Patent

active

057238693

ABSTRACT:
A position sensing detector in which each of a plurality of sensing channels is provided with ends and an output current lead at each end of each channel. A light spot is imaged along the length of the channel. The channels are electrically isolated from each other. The channels may be proportional to a selected keystone pattern, and the channels may be rectangular-shaped and accommodate keystoning effects of an imaged beam.

REFERENCES:
patent: 4361758 (1982-11-01), Rotolo
patent: 4576481 (1986-03-01), Hansen
patent: 4691101 (1987-09-01), Leonard
patent: 5004929 (1991-04-01), Kakinoki et al.
patent: 5137350 (1992-08-01), Misawa et al.
patent: 5210402 (1993-05-01), Oomen
patent: 5554858 (1996-09-01), Costa et al.

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