Scanning unit for an optical position measuring device

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United States of America Patent

PATENT NO 6965437
APP PUB NO 20040046113A1
SERIAL NO

10258892

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A scanning unit for an optical position measuring device for scanning a periodic strip pattern in a detector plane, the scanning unit including a detector arrangement including a first detector array with a first set of several radiation-sensitive detector elements, which are arranged next to each other in a first direction on a common support substrate and a second detector array including a second set of several radiation-sensitive detector elements arranged adjacent to the first detector array in a second direction perpendicular with respect to the first direction a detection plane. The second set of several radiation-sensitive detector elements are arranged next to each other in the first direction with a common period PDET, and have a geometrically defined offset (Δx1i) in the first direction with respect to the first set of several radiation-sensitive detector elements.

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Patent Owner(s)

Patent OwnerAddress
DR JOHANNES HEIDENHAIN GMBHDR -JOHANNES-HEIDENHAIN-STRASSE 5 TRAUNREUT 83301

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holzapfel, Wolfgang Obing, DE 125 1123
Mayer, Elmar J Nussdorf, DE 2 4

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