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Oscillating structure and oscillator device using the same

A technology for oscillators and equipment, which is applied in the field of oscillatory structures and oscillator equipment using the oscillatory structure, can solve problems such as inconstant angular velocity, and achieve the effects of increasing the number of products, reducing costs, and reducing size

Inactive Publication Date: 2011-01-19
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In contrast, in a resonance type deflection device, since the displacement angle of the mirror changes theoretically sinusoidally, the angular velocity is not constant

Method used

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  • Oscillating structure and oscillator device using the same
  • Oscillating structure and oscillator device using the same
  • Oscillating structure and oscillator device using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] refer to Figure 1A to Figure 5 , illustrating a first embodiment of an oscillating structure, an oscillator device, an optical deflecting device, and an imaging device according to the present invention. First, use Figure 1A to Figure 3B Structural features and operating principles of the oscillation structure and oscillator device of this embodiment will be described.

[0041] Figure 1A is a plan view showing an oscillating structure (for example, a micro oscillating structure) according to this embodiment. This oscillating structure 106 includes a pair of supporting members 101, a first oscillating member 102, a second oscillating member 103, a first torsion spring 104 (first elastic supporting member) constituted by a pair of springs, and a second torsion spring 105 (first elastic supporting member). Two elastic support components). Each spring of the first torsion spring 104 extends from the corresponding supporting member 101 to the first oscillating member 1...

Embodiment 2

[0070] A second embodiment will now be described. Its basic structure is the same as that of the first embodiment. refer to Figure 3A and 3B , to explain the operation of the oscillator device of the second embodiment.

[0071] In this embodiment, driving is performed based on a combination of the parallel mode and the reverse mode, such as Figure 3A The triangular waveform shown. The shape of the device, etc. can be designed to generate a parallel mode at sin(ω·t) and an inverse mode at sin(3·ω·t+π), multiply them by respective predetermined coefficients, add them to each other ( Equation 2). Also, assuming ω=2·π·f, it becomes possible to cause the second oscillating member 103 to generate a torsional oscillation having such Figure 3A The displacement angle of the chopped waveform is shown as a function of time. Also, f=1000 [Hz] is employed here.

[0072] f(t)=sin(ω·t)+0.06·sin(3·ω·t+π)...(2)

[0073] If we differentiate Equation (2), we can get Figure 3B The a...

Embodiment 3

[0076] refer to Figure 6 , illustrating an oscillation structure according to a third embodiment of the present invention. Figure 6 is a plan view showing the oscillation structure of this embodiment. In this embodiment, the first oscillating member 702 and the second oscillating member 703 are connected by two second torsion springs 705 . The supporting member 701 is connected to the first oscillating member 702 by the first torsion spring 704 . The supporting member 701 and the first torsion spring 704 are sandwiched by two second torsion springs 705 . The shape of this embodiment is effective when the deformation of the second oscillating member 703 during operation is to be reduced.

[0077] As mentioned above, in this embodiment, the second torsion spring 705 is composed of a plurality of springs, and the first torsion spring 704 is sandwiched by the second torsion spring 705 composed of a plurality of springs. The operation and advantageous features of this embodim...

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PUM

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Abstract

An oscillating structure includes a supporting member, a first oscillating member, second oscillating member, a first resilient supporting member configured to connect the supporting member and the first oscillating member and to support the first oscillating member for oscillatory motion around the supporting member as a central axis, and a second resilient supporting member configured to connect the first oscillating member and the second oscillating member and to support the second oscillating member movably relative to the first oscillating member, wherein the direction in which the firstresilient supporting member extends from the supporting member to the first oscillating member and the direction in which the second resilient supporting member extends from the first oscillating member to the second oscillating member are opposite to each other.

Description

technical field [0001] The present invention relates to, for example, an oscillating structure having a plurality of oscillating members and a plurality of elastic supporting members, an oscillator device using the oscillating structure, an optical deflecting device using the oscillator device, and an imaging device using the optical deflecting device. This optical deflecting device is preferably used in an image forming device such as a scanning display unit, a laser beam printer or a digital copier. Background technique [0002] Conventionally, various optical deflection devices that utilize resonance to drive mirrors have been proposed. Compared with an optical scanning optical system using a rotating polygonal mirror such as a polygonal mirror, the resonance type optical deflecting device has advantageous features such as: the optical deflecting device can be manufactured in a relatively small size; the power consumption is low; the mirror surface theoretically has no fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/08G02B26/10H03H9/02H03H9/24
CPCG02B26/105H03H9/02259H03H9/2457H03H9/02362G02B26/085H03H2009/02511Y10T74/18856
Inventor 牛岛隆志渡边信一郎宫川卓
Owner CANON KK