Moving coil linear motor positioning stage with a concentric aperture

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6885116
APP PUB NO 20040174076A1
SERIAL NO

10138816

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Abstract

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A moving coil linear motor positioning stage with a concentric aperture is disclosed. The present invention relates to positioning an element or device such as an optic or lens. The apparatus is ideal for moving an optic coaxial with a light beam. The present invention uses a voice coil motor with a cylindrical moving coil and a cylindrical permanent magnet assembly with a radial gap. The moving coil and magnet assemblies have clear apertures concentric with the apparatus and the axis of motion. A pair of planar flexures guides the moving coil. A position-sensing device is used to sense the position of the moving coil to enable fine position control.

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Patent Owner(s)

Patent OwnerAddress
EQUIPMENT DESIGN SERVICES INC868 JASMINE DR SUNNYVALE CA 94086

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Knirck, Jeffrey G 868 Jasmine Dr., Sunnyvale, CA 94086 15 286
Swanson, Paul A 19890 Pear Tree La., Cupertino, CA 94086 9 197

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