Lens-fitted film unit and production method thereof
US6480674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens-fitted unit includes a photographic film loaded in advance, a shutter, a taking lens, an exposure counter plate that is provided with numerals indicating the number of exposures or the number of exposed frames, and is moved in one direction for each exposure, and an exposure counter window through which the numeral on the exposure counter plate can be recognized. A distance between the prescribed numeral on the exposure counter plate and the immediate neighboring numeral provided to be next to the prescribed numeral on a downstream side in a moving direction of the exposure counter plate is greatest, compared with other distances between other immediate neighboring numerals on the exposure counter plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.