Focusing reflector
US4179193A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1978 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Apr 10, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A focusing reflective mirror which is fabricated of a hoop structure having a reflective metalized membrane stretched over one face thereof and a metalized backing membrane over the opposite side forming a closed reflective structure. The contour of the flexible reflective surface is controlled by a differential pressure between the enclosed area behind the reflective surface and the ambient pressure. The particular configuration or contour of the reflective surface is controlled by a electropneumatic control system wherein a capacitive member is mounted behind the reflective surface and within the reflective structure which senses the distance between the capacitive member and the reflective surface and adjusts the focus by varying the relative pressure within the enclosed area behind the reflective member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.