Photosensor for position detecting device, position detecting device using same and position detecting method
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United States of America Patent
Stats
-
Jan 27, 2015
Issued Date -
N/A
app pub date -
Jul 6, 2012
filing date -
Jul 13, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An object of the present invention is to provide a position detecting device using a reflection type photosensor, which assures a small size and low cost and enables detection of a long distance of about 10 mm or more, and a position detecting method. The position of a moving body is detected by providing, on the moving body, a reflection plate (12) having reflecting surfaces (sa) and non-reflecting surfaces (sb) arranged alternately in a moving direction of the moving body, providing a light receiving element (8) of the reflection type photosensor (9) with, for example, two light receiving portions (8a and 8b) having different light receiving regions in the moving direction of the moving body, outputting output signals from these two light receiving portions (8a and 8b), and carrying out at least one calculation of adding, subtracting, dividing and function calculation of these two output signals.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- G01D Class
- 793 Applications Filed
- 667 Patents Issued To-Date
- 84.12 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G01D Class
- 8.55 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 27, 2026 |
