Auto-focus setting method and apparatus for printing slide films
US4592647A · kind A · utility
4Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1984 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Jun 6, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved auto-focus setting operation of a slide film in a printing system can be carried out by preliminarily measuring auto-focus information before the slide film is fed to a printing position in the printing system. An auto-focus mechanism assembled in the printing system is operated in accordance with the auto-focus information for preliminarily setting a slide film setting member to a focus position of the slide film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.