Three-dimensional display system with a feedback control loop sensitive to the instantaneous positioning of a flexible mirror membrane
US4743748A · kind A · utility
5Cited by
6References
4Claims
0Family size
Inventor
Key dates
| Filing date | Aug 9, 1985 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Aug 9, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for accurately controlling the motion of a mirror membrane used in a three-dimensional display system. The system senses the pressure differential across the membrane mirror as a means of indirectly measuring mirror position. This pressure differential is converted into an electrical signal which is used in a closed loop feedback system to force the membrane position to follow accurately the command signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.