Micro-oscillating member, light-deflector, and image-forming apparatus
First Claim
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1. An oscillating apparatus, comprising:
- a movable system comprising a plurality of movable elements and a plurality of torsion springs, the movable system having a plurality of isolated characteristic oscillation modes;
a support portion for supporting the movable system;
a driver for oscillating the movable system; and
a driving controller for controlling the driver,wherein the driving controller controls the driver such that the movable system simultaneously oscillates in at least a first characteristic oscillation mode of a reference frequency and a second characteristic oscillation mode of a frequency being approximately an even number times the reference frequency.
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Abstract
The present invention provides a resonance type micro-oscillating member capable of retraining a fluctuation of angular velocity, and specifically provides a micro-oscillating member, which is a nested micro-oscillating member, wherein there exist a reference oscillation mode which is the characteristic oscillation mode of a reference frequency, and an even numbered oscillation mode which is the characteristic oscillation mode of a frequency being approximate even number times the reference frequency.
25 Citations
11 Claims
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1. An oscillating apparatus, comprising:
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a movable system comprising a plurality of movable elements and a plurality of torsion springs, the movable system having a plurality of isolated characteristic oscillation modes; a support portion for supporting the movable system; a driver for oscillating the movable system; and a driving controller for controlling the driver, wherein the driving controller controls the driver such that the movable system simultaneously oscillates in at least a first characteristic oscillation mode of a reference frequency and a second characteristic oscillation mode of a frequency being approximately an even number times the reference frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An oscillating member, comprising:
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a movable system comprising a plurality of movable elements and a plurality of torsion springs, the movable system having a plurality of isolated characteristic oscillation modes; and a support portion for supporting the movable system, wherein the movable system has at least a first characteristic oscillation mode of a reference frequency and a second characteristic oscillation mode of a frequency being approximately an even number times the reference frequency. - View Dependent Claims (11)
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Specification