Scanning optical apparatus having beam scan controller

Details Scanning optical apparatus having beam scan controller Scanning optical apparatus having beam scan controller

1995-06-07

1997-05-06

Tran, Thang V.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359216, 250235, 369 4414, G02B 2610, G03G 1504

Patent

active

056276702

ABSTRACT:
A scanning optical apparatus comprises a light source unit, scanning means for deflecting a beam from said light source unit and scanning a scanning surface with the beam, means for detecting the beam scanned on said scanning surface and control means for controlling the beam scanned on said scanning surface in a direction perpendicular to said scanning surface on the basis of a magnitude and a change as a function of time of a signal output from said detecting means.

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patent: 4949100 (1990-08-01), Hidaka
patent: 4990771 (1991-02-01), Minura
patent: 5018808 (1991-05-01), Meyers et al.
patent: 5109297 (1992-04-01), Izumi

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