Laser printer with harmonic wave separation of the beam

Details Laser printer with harmonic wave separation of the beam Laser printer with harmonic wave separation of the beam

1989-08-15

1990-09-25

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, 372 22, 307427, G01D 900, G01D 1514, H01S 310

Patent

active

049596659

ABSTRACT:
In an information device which has a laser light source and a non-linear optical crystal for converting the laser fundamental wave light irradiated from the laser light source into harmonic wave light and uses the laser light passing through the non-linear optical crystal, a prism or an optical grating is provided to separate an optical path of the fundamental wave light remaining in the laser light passing through the crystal from an optical path of the harmonic wave light with the purpose of eliminating the fundamental wave light. In another embodiment, a polarization filter is provided to eliminate the fundamental wave light.

REFERENCES:
patent: 4824220 (1989-04-01), Yamamoto et al.
patent: 4830447 (1989-05-01), Kamiyama et al.
Handbook of Lasers with Selected Data on Optical Technology, Chemical Rubber Co., 1971, "Non-Linear Optical Materials", S. Singh, pp. 489-492.

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