Vibrating element, optical scanning device, and image forming device and image projection device using same

US9024992B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9024992-B2
Application numberUS-201213978192-A
CountryUS
Kind codeB2
Filing dateJan 4, 2012
Priority dateJan 7, 2011
Publication dateMay 5, 2015
Grant dateMay 5, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The oscillation element according to the present invention includes a torsion bar mounted on a base, and an oscillating member having a light reflection surface for reflecting light from a light source, which is fixed on the torsion bar protruding from the base. The oscillating member oscillates about a longitudinal axis of the torsion bar with an elastic deformation of the torsion bar, thereby deflecting the light that reflects at the light reflection surface in a direction intersecting the longitudinal axis. The oscillating member has two plates that are joined together so as to sandwich the torsion bar. On joining surfaces of the plates are provided with grooves for receiving the torsion bar, respectively. The plates have a symmetrical shape that the longitudinal axis serves as the axis of symmetry.

First claim

Opening claim text (preview).

The invention claimed is: 1. An oscillation element comprising: a base; a torsion bar protruding from the base; and an oscillating member arranged on a side of the torsion bar away from the base, the oscillating member having two plates, each of the two plates having a same shaped groove, and the two plates being joined together so that the two plates sandwich the torsion bar within the grooves. 2. The oscillation element as claimed in claim 1 , wherein…

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What does patent US9024992B2 cover?
The oscillation element according to the present invention includes a torsion bar mounted on a base, and an oscillating member having a light reflection surface for reflecting light from a light source, which is fixed on the torsion bar protruding from the base. The oscillating member oscillates about a longitudinal axis of the torsion bar with an elastic deformation of the torsion bar, thereby…
Who is the assignee on this patent?
Wakabayashi Takayuki, Suzuki Naruki, Arai Katsumi, and 2 more
What technology area does this patent fall under?
Primary CPC classification G02B7/1821. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue May 05 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).