Signal detection apparatus with plural elongate beams correspond

Details Signal detection apparatus with plural elongate beams correspond Signal detection apparatus with plural elongate beams correspond

1983-11-23

1986-09-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356401, G01N 2186

Patent

active

046111220

ABSTRACT:
A signal detection apparatus comprises a device for forming with separable lights illumination areas extending in different plural directions, a scanner for causing the illumination areas to scan bar-like marks extending in different directions on an object, and a photoreceptor for separately receiving signal lights corresponding to the respective different directions from the rays reflected by the marks.

REFERENCES:
patent: 3683195 (1972-08-01), Johannsmeier et al.
patent: 3865483 (1975-02-01), Wojcik
patent: 4167677 (1979-09-01), Suzki
patent: 4202627 (1980-05-01), Suzki
patent: 4301363 (1981-11-01), Suzuki et al.
patent: 4515481 (1985-05-01), Yamada et al.

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