Linear array optical edge sensor

Details Linear array optical edge sensor Linear array optical edge sensor

1985-10-29

1987-09-15

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

318577, G05B 100

Patent

active

046941533

ABSTRACT:
A series of independent parallel pairs of light emitting and detecting diodes for a linear pixel array, which is laterally positioned over an edge-like discontinuity in a workpiece to be scanned, is disclosed. These independent pairs of light emitters and detectors sense along intersecting pairs of separate optical axes. A discontinuity, such as an edge in the sensed workpiece, reflects a detectable difference in the amount of light from that discontinuity in comparison to the amount of light that is reflected on either side of the discontinuity. A sequentially sychronized clamping and sampling circuit detects that difference as an electrical signal which is recovered by circuitry that exhibits an improved signal-to-noise capability for the system.

REFERENCES:
patent: 3781115 (1973-12-01), Rader et al.
patent: 3883735 (1975-05-01), Murphy et al.
patent: 4112309 (1978-09-01), Nakazawa et al.
patent: 4427880 (1984-01-01), Kanade et al.
patent: 4479717 (1984-10-01), Cornillault
patent: 4493968 (1985-01-01), Brown
patent: 4518856 (1985-05-01), Blockington
patent: 4553846 (1985-11-01), Hilton et al.
patent: 4559451 (1985-12-01), Curl
patent: 4559452 (1987-12-01), Igaki et al.
patent: 4567347 (1986-01-01), Ito et al.
Sensors and Computer Aided Control of Manipulators in Space, by Antal K. Bejczy, May 3, 1979 in "Midcon 1979 Professional Program Papers".
Smart Sensors for Smart Hands No. 78-1714, by A. K. Bejczy, NOV 14-16, 1978 at the AIAA/NASA Conference on "Smart" Sensors.

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