Segmented position sensing detector for reducing non-uniformly distributed stray light from a spot image
US5554858A · kind A · utility
8Cited by
6References
5Claims
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Key dates
| Filing date | Sep 22, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position sensing detector in which each of a plurality of sensing channels is provided with ends and an output current lead at each end of each channel. A light spot is imaged along the length of the channel. The channels are electrically isolated from each other. The channels may be proportional to a selected keystone pattern, and the channels may be rectangular-shaped and accommodate keystoning effects of an imaged beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.