Light beam deflecting device

Details Light beam deflecting device Light beam deflecting device

1995-08-24

1997-11-11

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359198, 359216, 310 51, 310 90, 384490, 384491, 384492, G02B 2608

Patent

active

056870167

ABSTRACT:
In a light beam deflecting device for deflecting a laser beam by using a rotary polygon mirror, the rotary shaft of the rotary polygon mirror is rotatably supported by a plurality of ball bearings which, when turned, vibrate at different frequencies, thus producing no beat sound.

REFERENCES:
patent: Re33813 (1992-02-01), Heide et al.
patent: 4609251 (1986-09-01), Nakaoka et al.
patent: 5002243 (1991-03-01), Kraus et al.
patent: 5118205 (1992-06-01), Hoffmann
patent: 5138477 (1992-08-01), Omura et al.
patent: 5245234 (1993-09-01), Okada et al.
patent: 5274288 (1993-12-01), Stefansky

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