Rotary polygon mirror type light deflector

Details Rotary polygon mirror type light deflector Rotary polygon mirror type light deflector

1998-03-05

1999-08-03

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359198, 359216, G02B 2608

Patent

active

059332670

ABSTRACT:
In a rotary polygon mirror type light deflector 1, since a ring-shaped polygon mirror 8 is mounted on the periphery of a bearing rotor 3, there exists a clearance between the bearing rotor 3 and polygon mirror 8. Even in this structure, if the leading end portion 110 of a fixing screw 11 is contacted with a wedge-shaped positioning member 12A within a groove 35 when the fixing screw 11 is threadedly engaged into the screw hole 35, then the positioning member 12A is allowed to push out the polygon mirror 8 toward the outer peripheral side thereof by an amount equivalent to the above-mentioned clearance, thereby being able to position and fix the polygon mirror 8 in the radial direction.

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