Light responsive motion sensing device
US4938597A · kind A · utility
2Cited by
11References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1988 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Apr 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A motion sensing device which includes a means including a light source for sympathetic movement with the motion, a light responsive fluid contained in a resilient envelope contiguous to the light source to receive light from the source for either absorption or fluorescence illumination, and photo-responsive means contiguous to the resilient envelope to provide electrical output of the light absorption or fluorescence variations which are inversely or directly proportional, respectively, of said motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.