Dual field of view sighting system
US7768703B2 · kind B2 · utility
7Cited by
6References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2007 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G1/38
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dual field of view sighting system uses liquid crystals, flip-polarizers and/or flip-mirrors to select between at least two fields of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.