Process control strip and method for recording
US5748331A · kind A · utility
5Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1997 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Mar 6, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process control strip for visual monitoring of an exposure process for a recording material as course signal elements and fine signal elements. A first stripe extending in a direction of a greatest expanse of the process control strip has a tonal value wedge with process-independent reference tonal values as the course signal elements that change in the stripe direction. A second stripe proceeds parallel to the first stripe and has a raster with fine raster points and the fine signal elements that represent a uniform, highly process-dependent tonal value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.