Single-axis drive, two-dimensional specimen position-shifting apparatus and methods

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United States of America Patent

APP PUB NO 20070270258A1
SERIAL NO

11438542

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A single-axis drive, two-dimensional specimen position-shifting apparatus includes a rotary drive mechanism drivingly coupled to a cam shaft to rotate it about a longitudinal axis. The cam shaft has a threaded portion around which a compatibly threaded extender can spin and a cam throw including a cam bearing surface portion of changing distance relative to the longitudinal axis as the cam shaft rotates. A stages bracket includes first and second portions operatively coupled to, respectively, the threaded extender and the cam bearing surface to impart concurrent movement of the stages bracket in orthogonal directions in response to rotation of the cam shaft. The threaded extender provides longitudinal displacement as the cam bearing surface portion provides lateral displacement, to the stages bracket. A target specimen, such as an optical element, is typically mounted to the stages bracket and moves in concert with it.

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Patent Owner(s)

Patent OwnerAddress
SPECTRA-PHYSICS3333 N 1ST STREET SAN JOSE CA 95134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stanescu, Dragos M San Jose, CA 10 30

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