Position transmitter for acquiring the position of a light beam

Details Position transmitter for acquiring the position of a light beam Position transmitter for acquiring the position of a light beam

1994-09-26

1995-08-22

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

2502082, 3561415, G05D 312, H01L 2714

Patent

active

054442346

ABSTRACT:
A position transmitter for acquiring the position of a light beam has at least one group of photodiodes arranged neighboring one another and fashioned strip-shaped such that at least two, typically 5-10, strip-shaped electrodes of a photodiode structure are at least partially covered by the light beam or particle beam whose position is to be acquired. An evaluation circuit measures the photocurrent or a correlated quantity of the individual strip electrodes and indicates the position of the beam on the basis of the distribution of the strengths of the photo currents.

REFERENCES:
patent: 4490036 (1984-12-01), Anagnostopoulos
patent: 4766307 (1988-08-01), Pelgrom et al.
patent: 4769546 (1988-09-01), Kniffler et al.
patent: 4806747 (1989-02-01), Dunavan et al.
patent: 4847489 (1989-07-01), Dietrich
patent: 4857721 (1989-08-01), Dunavan et al.
patent: 5130775 (1992-07-01), Maeda et al.
patent: 5184018 (1993-02-01), Conrads et al.
"Elektronische Kamera," Wellhauser, Elektronik Jan. 1991, pp. 60-64.

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