Binoculars having hand-vibration compensation system
US6067195A · kind A · utility
6Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A binocular is provided with a pair of telescopic optical systems. Each of the pair of telescopic optical systems has an objective lens system, an erecting optical system, and an observing optical system. The erecting optical system of each of the telescopic optical systems may be a type I or type II Porro prism, which is divided into two sub prisms respectively have two reflection surfaces. First and second hand vibration compensation mechanism is provided: (a) between the objective lenses and erecting optical systems; and (b) between the first sub prisms and the second sub prisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.