Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-06-28
1997-04-01
Phan, James
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359198, 359216, 310 90, 310177, G02B 2608
Patent
active
056172419
ABSTRACT:
A rotating polygon mirror for optical beam scanning. The polygon mirror is fixed to a rotating shaft and is rotated at a high speed by a drive force of a rotating drive with brushes. Additionally, a magnet is fixed to an inner circumferential surface of a yoke casing that supports the rotating shaft through a bearing, and a rotor core is positioned to confront the magnet fixed to the rotating shaft.
REFERENCES:
patent: 4523800 (1985-06-01), Yamashita et al.
patent: 4609251 (1986-09-01), Nakaoka et al.
patent: 5142176 (1992-08-01), Takahashi
patent: 5371347 (1994-12-01), Plesko
Kabushiki Kaisha Sankyo Seiki Seisakusho
Phan James
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