Multiple beam scanning apparatus

Details Multiple beam scanning apparatus Multiple beam scanning apparatus

1996-05-23

1998-05-19

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250236, 250225, 359204, G01P 942, H01J 314

Patent

active

057539073

ABSTRACT:
A multiple beam scanning apparatus in which a plurality of light beams are repeatedly scanned at the same time, including a light source unit defining an optical axis and including plural laser diodes, collimator lenses for respectively converting light beams emitted by the laser diodes to respective parallel light fluxes, and a beam composing unit for superposing the light beams and emitting the superposed light beams therefrom. The light source unit is rotatively adjustable around the optical axis and is constructed such that respective light fluxes emitted from the beam composing unit are emitted with predetermined respective different angles at least in a main scanning direction.

REFERENCES:
patent: 5007692 (1991-04-01), Matsura
patent: 5018806 (1991-05-01), Nakajima
patent: 5113279 (1992-05-01), Hanamoto et al.
patent: 5153768 (1992-10-01), Appel
patent: 5210635 (1993-05-01), Nagata et al.
patent: 5233188 (1993-08-01), Arimoto et al.
patent: 5347124 (1994-09-01), Narukawa et al.
patent: 5371608 (1994-12-01), Muto et al.

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