Photographic film package and method of making the same
US4954857A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Sep 19, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2219/045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens-fitted photographic film package comprising a light-tight film casing having an exposure opening, a rolled film disposed on one side of the exposure opening in the light-tight casing, a removable light-tight container having a film winding spool therein disposed on the other side of the exposure opening in the light-tight film casing, and an externally operable film winding member for winding the rolled film around said film winding spool of the light-tight film container. The lens-fitted photographic film package is assembled by the steps of winding film withdrawn from a light-tight film container in a roll in a darkroom; loading the rolled film and the light-tight film container in separate respective receiving chambers formed in a main body section of the lens-fitted photographic film package; and fixing a back cover section to the main body section so as to assemble light-tightly the lens-fitted photographic film package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.