Lens-fitted photo film unit provided with a stop-changing mechanism, and device for changing a stop
US6705775B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2003 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | May 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A first pin to be used for rotatably supporting a shutter blade is disposed near a second pin to be used for rotatably supporting a stop-changing plate. A rotational direction of the shutter blade from a closed position to an open position is set so as to be identical with a rotational direction of the stop changing plate directing from a smaller-stop position to a larger-stop position. Rotational spaces of the shutter blade and the stop changing plate are arranged at one side of a photographic optical axis so that a protrusion of a front cover for containing them is prevented from enlarging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.