Optical control system
US4854219A · kind A · utility
2Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2071
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An optical actuator position demand signal through optic fiber 14 is focused on one side 32 of optical fluidic interface 16. A second optical signal through optic fiber 56 is attentuated 50 in proportion to actuator 38 position and focused on a second side 34 of the interface 16. Amplified fluidic signals 68, 70 drive the actuator until the demand signal 14 and actual signal 58 are in balance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.