Scope
US9903688B2 · kind B2 · utility
0Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2014 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Nov 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A scope for a rifle provides a wide field of view and safe eye relief. The scope includes an objective lens group and an ocular lens group, one lens of the ocular lens group being at least 10% greater in diameter than the first lens of the objective lens groups. Focal lengths of the lenses of the ocular lens groups satisfy relationships to provide safe eye relief and a proper distribution of power amongst the lens groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.