Optical scanner having laser diode as light source

Details Optical scanner having laser diode as light source Optical scanner having laser diode as light source

1992-04-24

1994-08-30

Cross, E. Rollins

Registers

Coded record sensors

Particular sensor structure

362373, 361694, 359216, G06K 710

Patent

active

053430298

ABSTRACT:
An optical scanner includes a light source including a laser diode for emitting a laser beam, and an optical deflector such as a rotary polygonal mirror for deflecting the laser beam to thereby produce a scanning laser beam. The laser diode is protected from being overheated by arranging the light source in a heat insulating chamber or by cooling the light source with the air flow circulated by the rotation of the rotary polygonal mirror in cooperation with a curved guide plate.

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patent: 3126785 (1964-03-01), Zillmer
patent: 3772464 (1973-11-01), Chan et al.
patent: 4605992 (1986-08-01), Cover
patent: 4673804 (1987-06-01), Filauro
patent: 4701674 (1987-10-01), Oono et al.
patent: 4729076 (1988-03-01), Masami et al.
patent: 5000529 (1991-03-01), Katoh et al.
patent: 5034866 (1991-07-01), Pujol
patent: 5039184 (1991-08-01), Murakawa
patent: 5111367 (1992-05-01), Churchill

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