Holographic gunsight with low profile collimator
US11112215B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G1/345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic weapon sight with a low profile collimator has a housing with a viewing end and an opposed target end. The holographic weapon sight has a light source operable to project a light beam along a light path. The low profile collimator has a first optical element and a second optical element disposed in the light path of the light beam such that the second optical element provides a fully collimated light beam. The holographic weapon sight also has a first diffractive optical element (DOE), a second DOE, and a mirror. The first DOE or the second DOE reconstructs an image of a reticle and respectively reflects the reconstructed image toward the mirror or the NDE such that a user views a target along a viewing path through the NDE from the viewing end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.