US Patent 7697185 Actuator, optical scanner and image forming device

Patent 7697185 was granted and assigned to Seiko Epson on April, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Seiko Epson

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7697185

Date of Patent

April 13, 2010

Patent Application Number

12110432

Date Filed

April 28, 2008

Patent Citations Received

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US Patent 11892728 Display with piezo material to alter a distance between a light source and an aperture layer

Patent Primary Examiner

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James Phan

Patent abstract

An actuator includes a movable plate having a plate shape, a pair of axial parts that is elastically deformable and supporting the movable plate rotatable, and a tension adjuster adjusting tension on an axial direction of the pair of the axial parts and including a torsional axis that is formed jointly or integrally with one of the axial parts and disposed orthogonally to the axial direction of the axial parts, and a drive source that torsionally deforms the torsional axis, wherein the torsional axis is torsionally deformed through the action of the drive source and a spring constant of the pair of the axial parts is adjusted by adjusting the tension on the pair of the axial parts.