Panoramic reverse Galilean telescope optics for an underwater diving mask
US6612693B2 · kind B2 · utility
1Cited by
2References
32Claims
0Family size
Inventors
Key dates
| Filing date | Jan 17, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jan 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dive mask having a configuration of reverse Galilean telescopes. The reverse Galilean telescopes are tilted relative to each other. This configuration achieves panoramic true-sized vision underwater, instead of vision that exhibits the magnification effects experienced with flat dive masks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.