Laser beam facsimile apparatus

Details Laser beam facsimile apparatus Laser beam facsimile apparatus

1979-08-20

1981-05-26

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358285, H04N 104

Patent

active

042701490

ABSTRACT:
A laser beam facsimile apparatus is disclosed. The apparatus utilizes a slit to define the light of a scan line. A laser beam is subjected to amplitude modulation and rapidly deflected toward the slit in a sub-scanning direction by an accousto-optic modulator (AOM) cell. An aperture of the slit is selected to be larger than the diameter of the deflected beam and smaller than the deflection scan in the sub-scanning direction. The light beam passed through the slit is focused on a light-sensitive medium by an optical system, whereby the optical intensity across the entire width of the scan line is constant without losing the sharpness at the edges of the scan line.

REFERENCES:
patent: 3358081 (1967-12-01), Young et al.
patent: 3997722 (1976-12-01), Bardos
patent: 4118734 (1978-10-01), Bowhuis et al.
patent: 4180822 (1979-12-01), Hudson et al.

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