Retractable holographic combiner
US5517337A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1993 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Aug 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A retractable holographic combiner, of the type comprising a movable holographic mirror placed before the pilot's eyes and designed for the presenting of light images collimated at infinity, superimposed on the external scene, and coming from a projector positioned upline with respect to the combiner, the holographic mirror being connected to a fixed part of the aircraft by a hinged support that provides for holding it and positioning it, wherein the support of the holographic mirror is constituted by a single lateral connecting arm comprising a first upper hinge connecting said arm by one of its ends to the fixed part of the aircraft and a second lower hinge connecting said arm by its other end to a side of the holographic mirror so as to obtain a complete retraction of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.