LIGHT DEFLECTOR
PURPOSE:To miniaturize a motor driving the rotation of a polygon mirror and to reduce the power consumption thereof by reducing windage-loss torque when the polygon mirror is rotated at a high speed. CONSTITUTION:In the light deflector provided with the polygon mirror 1 obtained by forming plural re...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To miniaturize a motor driving the rotation of a polygon mirror and to reduce the power consumption thereof by reducing windage-loss torque when the polygon mirror is rotated at a high speed. CONSTITUTION:In the light deflector provided with the polygon mirror 1 obtained by forming plural reflecting mirror surfaces on the outside circumference, a rotating member 2 provided with a mirror flange 3 where the mirror 1 is disposed, and rotated at a prescribed speed, a mirror cap 4 interposing and fixing the mirror 1 in cooperation with the flange 3 and an aperture part 20a where a light beam made incident and reflected on the reflecting mirror surfaces 1a of the mirror 1 is passed, and constituted of a mirror cover 20 covering the mirror 1 and the cap 4, a recessed part 21 where the cap 4 is housed, is formed on the cover 20. |
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