Diopter-adjusting device for use in finder-interchangeable type single lens reflex camera
US4164369A · kind A · utility
9Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1978 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Jun 2, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B19/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The eyepiece in an interchangeable finder is made axially adjustable by mounting it in a holder which, in turn, is slidably mounted within the finder. In the preferred embodiment, sliding movement of the eyepiece holder is accomplished through a rack and pinion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.