Scanning unit for an optical position measuring device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 15, 2005
Grant Date -
Mar 11, 2004
app pub date -
Apr 14, 2001
filing date -
Apr 28, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
DR JOHANNES HEIDENHAIN GMBH | DR -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 |
# of filed Patents : 125 Total Citations : 1123 | |||
Mayer, Elmar J | Nussdorf, DE | 2 | 4 |
# of filed Patents : 2 Total Citations : 4 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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