Process and apparatus for producing a photographic print
US6111381A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1999 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Sep 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0414
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For the production of a photographic print of an original present in electronic format, optical representations (D) are produced from sequentially changing strip-shaped portions of the original by way of an electro optical, pixel wise operating converter device (3) and these optical representations (D) are projected onto a strip-shaped exposure region (E) on the copy material (P), whereby the strip-shaped exposure region (E) and the copy material (P) are moved relative to one another and at an essentially constant speed in a direction transverse to the longitudinal extent of the strip-shaped exposure regions (E), so that successively the image information of the whole original is exposed onto the total available surface of the copy material (P). Each strip-shaped portion of the original is thereby divided into at least two strip-shaped sections positioned one behind the other in longitudinal direction of the portion, separate optical representations are produced from the sections by way of the electro optical converter device (3) and these separate optical representations of the sections are projected onto the copy material (P) in at least two strip-shaped partial exposure regions …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.