Photographic film and cartridge
US5192648A · kind A · utility
5Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/241
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic film comprises an elongated light-sensitive strip having a longitudinal series of similar size rectangular exposure areas whose proportion of the width to the height is less than 2:1. Each exposure area is pre-exposed along a top-most portion and/or a bottom-most portion to limit the useable size of each exposure area during picture-taking to one whose proportion of the width to the height is at least 2:1. Thus, the useable size of each exposure area provides a panorama-like image format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.