Compact optical sight
US10429150B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2019 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Feb 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0972
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improvement to an optical assembly that is adapted to accept light from a field of view in front of the optical assembly and create a first inverted image on a first image plane. Further the assembly includes an objective lens, a first prism adapted to receive light from the objective lens and a second prism, adapted to receive light from the first prism and emit light. The improvement is the addition of a negative lens interposed between the first prism and the second prism, thereby reducing the total optical pathway of the optical assembly, relative to a device performing the same optical function and lacking the negative lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.