Two-dimensional position sensing systems and sensors therefor
US8969769B2 · kind B2 · utility
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12References
25Claims
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Key dates
| Filing date | Dec 16, 2011 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Two dimensional position sensing system and sensors for use in such systems are disclosed. The sensors incorporate linear array sensors having sensor elements and an aperture plate. Some embodiments include a radiation source that directs radiation onto some of the sensor elements. Other embodiments including radiation blocking objects that block radiation from reaching some of sensor elements. The direction or position of the radiation source or radiation blocking object may be estimated from the radiation incident on the sensor elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.