Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

1995-04-13

1997-09-23

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359198, G02B 2608

Patent

active

056710810

ABSTRACT:
A damping member is disposed between a motor cover attached near a rotary polygon mirror drive motor so as to cover a rotary polygon mirror and an optical cover attached to an optical box so as to cover the motor cover and a (f-.theta.) optical lens group. The damping member can absorb a vibration generated in the motor cover when the rotary polygon mirror and the rotary polygon mirror drive motor are driven to thereby alleviate a transmission of a vibration to the optical cover. Furthermore, a heat generated from the rotary polygon mirror drive motor is radiated from the optical cover through the damping member to thereby prevent a heat from being filled in the inside of the optical cover. In this way, it is possible to avoid the vibration and the heat from affecting the (f-.theta.) lens group or the like as much as possible. Thus, the light beam can be focused on the photosensitive material under satisfactory condition.

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