Optical deflector

Details Optical deflector Optical deflector

1986-11-19

1988-01-05

Corbin, John K.

G02B 2610

Patent

active

047172231

ABSTRACT:
In an optical deflector of a polygonal mirror type, a cylinder rotatably overlaps on a fixed shaft with a gap between them. The cylinder rotates the polygonal mirror therewith. The cylinder is radially supported by a journal bearing of dynamic pressure type and axially suspended by a magnetic thrust bearing. The cylinder and the fixed shaft are made of nonmagnetic material, so that the cylinder is prevented from eccentric rotation because of local magnetization of cylinder and the shaft.

REFERENCES:
patent: 4512626 (1985-04-01), Kamiya et al.
patent: 4523800 (1985-06-01), Yamashita et al.

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