Terrestrial telescope with digital camera
US6822802B2 · kind B2 · utility
6Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A terrestrial telescope with digital camera includes objective lenses, an imaging element located downstream of the objective lenses, a retractable optical-path splitter between the objective lenses and the imaging element, and an optical system for observing an optical image divided from the optical path of the imaging optical system by the optical-path splitter. An optical element is inserted into the optical axis of the imaging optical system to correct for any change in the image-formation position when the optical-path splitter is retracted from the optical path of the imaging optical system during imaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.