Glass plate film holder for scanners
US7508556B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 16, 2004 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Feb 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0422
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a film holder for an advanced scanner having a notched and grooved frame surrounding a central support, preferably a glass plate. The frame contains grooves along the side edges of the frame that correspond with accepting gears of a scanner such as a 4,000-dpi scanner. The central support provides a mounting surface for a piece of film to be scanned, wherein the film is mounted on the central support with a mounting fluid. The mounting fluid smoothes over imperfections in the film and central support, and holds the film secure to the support over the entire surface area of the film, thereby improving scan quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.