Video finder for single-lens reflex camera
US4704022A · kind A · utility
20Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1986 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A video finder in a single-lens reflex camera comprises a finder eyepiece, a penta roof prism disposed between the eyepiece and a focusing screen, a beam splitter disposed between the penta roof prism and the finder eyepiece, an image-forming optical system for forming a light image from the split beam and an image pickup device for forming a video signal corresponding to the light image formed by the image-forming optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.