Light beam scanner

Details Light beam scanner Light beam scanner

2004-07-08

2008-11-11

Tran, Huan H (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

Reexamination Certificate

active

07450145

ABSTRACT:
A light beam scanner switches between a first mode in which a laser is turned ON to emit a light beam every surface period of a rotary polygon to detect the light beam, and a second mode in which the laser is turned ON to emit the light beam with a long period specified with an integral multiple of two or more of the surface period of the rotary polygon to detect the light beam, for formation of an image and non-formation of an image, thereby improving a life of the laser.

REFERENCES:
patent: 5808431 (1998-09-01), Koyama et al.
patent: 5821977 (1998-10-01), Nishimura
patent: 2002/0005889 (2002-01-01), Kishida
patent: 9-183251 (1997-07-01), None
patent: 11218697 (1999-08-01), None

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