Head up display for firearms
US7721481B2 · kind B2 · utility
39Cited by
20References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Oct 31, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2252
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head up display for firearms is provided, wherein a light valve is employed to create variable images in response to user input. The images from the light valve are entrained in an illuminating beam which intersects a diffractive optic. The diffractive optic includes a recorded infinite focal plane which is reconstructed by the illuminating beam, thereby displaying the image from the light valve at an infinite focal plane which is readily viewed be a user looking through the diffractive optic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.