Laser exposure unit including plural laser beam sources differin

Details Laser exposure unit including plural laser beam sources differin Laser exposure unit including plural laser beam sources differin

1998-04-16

2000-10-31

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347241, 347256, B41J 2455

Patent

active

061410306

ABSTRACT:
An exposing apparatus is provided with a first laser beam source for being directly modulated in terms of light amount and for emitting a first laser beam having a first wavelength; a second laser beam source for emitting a second laser beam having a second wavelength different from the first wavelength; and an audio-optical modulation element for modulating the second laser beam in terms of light amount.

REFERENCES:
patent: Re33931 (1992-05-01), Whitney
patent: 4987426 (1991-01-01), Ota et al.
patent: 5296958 (1994-03-01), Roddy et al.
patent: 5373395 (1994-12-01), Adachi
patent: 5557303 (1996-09-01), Agano et al.
patent: 5838355 (1998-11-01), Narayan et al.
Patents Abstracts of Japan, vol. 1995, No. 3, Apr. 28, 1995 & JP 06-334818, Publication date 2/12/94.

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