Laser picture-drawing apparatus

Details Laser picture-drawing apparatus Laser picture-drawing apparatus

1986-10-08

1987-12-22

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

250201, 355 8, G01J 942, G03G 1528, G01J 120

Patent

active

047149337

ABSTRACT:
A laser picture drawing apparatus comprises a movable stage for supporting a screen having a surface on which a figure is to be drawn, a laser oscillator for emitting a laser beam, a galvanomirror for deflecting the laser beam, a F-.theta. for focussing the deflected beam a focal point on the surface to be drawn upon, and a mirror disposed movably along an optical axis between the F-.theta. lens and the surface to be drawn upon, for reflecting the beam from the F-.theta. lens in a figure-drawing direction. The reflector is moved along the optical axis at a distance equal to the thickness of the screen.

REFERENCES:
patent: 3614456 (1971-10-01), Hamisch
patent: 4259004 (1981-03-01), Tateoka et al.
patent: 4274101 (1981-06-01), Kataoka et al.
patent: 4358774 (1982-11-01), Wilkinson
patent: 4578689 (1986-03-01), Spencer et al.

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