Auto-focus camera
US4400071A · kind A · utility
8Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1982 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | May 3, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a mark finder for an auto-focus camera provided with a photographic field mark indicating a picture frame within the field of view of the finder, and a distance measuring area mark indicating the light metering field of a photo-electric in-focus detecting device, the above-described phototgraphic field mark and the above-described distance measuring area mark are formed to be adjustable independently of each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.