Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2009-09-24
2010-11-30
Cherry, Euncha P (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C310S090000
Reexamination Certificate
active
07843619
ABSTRACT:
Disclosed herein is a scanner motor. The scanner motor includes a rotor case for mounting a magnetic disc or polygon mirror thereon. A rotating shaft is rotatable and axially supports the rotor case. A hollow cylindrical bearing rotatably supports the rotating shaft. A bearing holder is mounted to the outer circumference of the bearing to support it. A stator is mounted to the outer circumference of the bearing holder to form an electric field which rotates the rotor case. A housing shaft is fitted over the outer circumference of the rotating shaft, seated on the rotor case, and coupled at its outer circumference to the polygon mirror. A hole is formed in the housing shaft, absorbs stress occurring during welding, and reduces variation in levelness of the polygon mirror. A coupling part couples the edge of the hole with the polygon mirror.
REFERENCES:
patent: 4820005 (1989-04-01), Hashimoto et al.
patent: 5124830 (1992-06-01), Omura et al.
patent: 10-2003-0084148 (2003-11-01), None
Bae Young Jin
Oh Song Bon
Shin Woo Chul
Song Sang Jae
Blakely , Sokoloff, Taylor & Zafman LLP
Cherry Euncha P
Samsung Electro-Mechanics Co. Ltd.
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