Telescopic optics with peripheral vision
US6239918A · kind A · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Jul 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device and a viewing method having a higher magnification viewing area located substantially centrally in a lower magnification area, whereby the structure facilitates locating viewing object within in higher magnification viewing area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.