Viewing-direction changing optical system
US4398811A · kind A · utility
139Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1982 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Mar 16, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/00183
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A viewing-direction changing optical system comprising an optical fiber bundle, a reflecting means arranged to deflect the optical axis to a direction different from the axis of the optical fiber bundle, and lenses arranged in front and rear (the object side and image side) of the reflecting means, the viewing-direction changing optical system being arranged to change the viewing direction by sliding the reflecting means in the direction of optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.