Lens-fitted film unit provided with focus adjusting mechanism
US6466740B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens-fitted film unit has a simple structured lens mechanism that can adapt to photographing under close-up photographing and normal photographing and also with a finder that enable a photographer to check the photographing field from the front in close-up photographing and take pictures including the photographer in a composition.The unit is provided with a selector member selecting a focus adjusting position between a normal photographing position and a close-up photographing position. The unit has a cylindrical lens holding member fixed to the unit body, a lens holding frame, in which a taking lens is fixed, arranged in the cylindrical lens holding member so as to be able to rotate and move in the direction of light, and a cam mechanism formed between the cylindrical lens holding member and the lens holding frame, and the selector member is arranged in the camera body so as to be movable between a normal photographing position and a close-up photographing position, to rotate the lens holding frame by movement, and cause the lens holding frame to move along the optical axis by the action of the cam mechanism. Adjacent to the photographing field finder, a reflexive mirror to ena…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.