Rotary polygon mirror type light deflecting system

Details Rotary polygon mirror type light deflecting system Rotary polygon mirror type light deflecting system

1995-09-01

1997-08-26

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359200, 310 90, G02B 2608

Patent

active

056615884

ABSTRACT:
A rotary polygon mirror type light deflecting system including a mirror, a hub, and a fixed shaft made of materials whose coefficients of linear expansion are equal to one another. A fixed shaft is erected integrally with a frame. Inner races of ball bearings are secured to the fixed shaft. A stator has a coil wound around a stator core formed contiguously with the frame. A drive magnet annularly surrounding the outer circumferential surface of the stator core and a yoke are fixed to a polygon mirror with a clamper and screws through a hub. The drive magnet, the yoke, and the hub are secured to the fixed shaft and made rotatable by the outer races of the ball bearings secured to the fixed shaft.

REFERENCES:
patent: 4836631 (1989-06-01), Shimazu et al.
patent: 4934836 (1990-06-01), Tanaka et al.
patent: 5357272 (1994-10-01), Watanabe et al.

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