Laser printer having athermalized optical heads

Details Laser printer having athermalized optical heads Laser printer having athermalized optical heads

1989-01-03

1990-10-02

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358 75, 350 13, G01D 1514

Patent

active

049610791

ABSTRACT:
A laser printer is disclosed which is adapted to be used for color imaging. The printer comprises three diode lasers, each of which emits at a different wavelength. Each laser beam is passed through an apodizing mask to trim the final spot size. The beams from the three lasers are combined by the use of dichroic mirrors to form one combined beam. The combined beam is shaped by two spherical mirrors and is scanned onto a receiving medium by a polygon. The receiving medium is sensitive to the infrared, and the diode lasers are selected to obtain the widest possible spectral separation in the light beams from the lasers.

REFERENCES:
patent: 4467334 (1984-08-01), Anzai
patent: 4588269 (1986-05-01), Kessler
patent: 4619892 (1986-10-01), Simpson et al.
patent: 4631551 (1986-12-01), Vergona
patent: 4679891 (1987-07-01), Roberts
patent: 4681427 (1987-07-01), Plummer
patent: 4728965 (1988-03-01), Kessler et al.
patent: 4821113 (1989-04-01), McQuade et al.

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