Optical scanning system and method for adjusting thereof

Details Optical scanning system and method for adjusting thereof Optical scanning system and method for adjusting thereof

1989-06-28

1991-10-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250235, 359662, 359663, 359206, H01J 4000

Patent

active

050556630

ABSTRACT:
An optical scanning system has a deflector for deflecting a beam emitted from a light source portion, a telecentric scanning lens for focusing the deflected beam onto a scanning surface, a beam splitter for splitting a beam reflected by the scanning surface on an optical path between the deflector and the light source portion from an outgoing optical path, and a focus point detector for receiving the beam split by the beam splitter and detecting a focused state of the beam on the scanning surface.

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patent: 4445126 (1984-08-01), Tsukada
patent: 4851698 (1989-07-01), Hippenmeyer
patent: 4925279 (1990-05-01), Shirota
English Language abstract of Japanese Application 60-123815.

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