Camera having adjustable aperture
US5787318A · kind A · utility
2Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera in which lenses in a lens system can be easily adjusted and manufacturing steps can be eliminated. The camera is equipped with an aperture which regulates the exposure region of a film, and a pressure plate with a tool insertion aperture hole formed in a region opposite the aperture. The tool insertion hole is disposed at the back surface of the aperture. This tool insertion hole allows for easy and efficient adjustment of the lenses making up the camera's lens system. Usually, the lens system is a zoom lens system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.