Holographic sight with optimized reflection and image angles
US10247515B2 · kind B2 · utility
11Cited by
40References
22Claims
0Family size
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Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Jul 1, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2284
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic gun sight has a housing with a viewing end and an opposing target end, a viewing path being defined from the viewing end to the target end. A light source projects a light beam along a path to illuminate a reflection-type holographic optical element (HOE). The HOE reconstructs an object beam with an image of a reticle. The absolute difference between the incidence angle of the light beam on the HOE and the object beam angle is greater than zero and less than or equal to 30 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.