Photographic film inspection apparatus
US5729328A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jun 18, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/247
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic film inspection apparatus for inspecting a photographic film before it undergoes exposure. The photographic film inspection apparatus includes an exposure condition reading unit for reading from the photographic film information regarding exposure conditions necessary for exposure including information regarding each picture frame, a digital image information capturing unit for dividing an image recorded on each picture frame of the photographic film into a plurality of pixels and for capturing them as data, an image presence/absence detection unit for detecting whether or not an image is recorded in a predetermined photographable area of the photographic film, an exposure condition calculation unit for calculating exposure conditions used during exposure based on the exposure condition information read by the exposure condition reading unit, and a digital image information correction unit for correcting the digital image information so as to permit images captured by the digital image information capturing unit to be properly reproduced on the photosensitive material though exposed under standard exposure conditions. With this structure, various inspection processes…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.