Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2005-04-26
2005-04-26
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C355S072000, C378S034000, C378S035000, C359S260000, C369S147000, C369S115000
Reexamination Certificate
active
06885116
ABSTRACT:
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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Knirck Jeffrey G.
Swanson Paul A.
Aguirrechea J.
Fountainhead Law Group
Schuberg Darren
Walsh Chad R
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