Plywood effect suppression in photosensitive imaging members
US5096792A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jul 2, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A layered photosensitive imaging member is modified to reduce the effects of interference within the member caused by reflections from coherent light incident on a base ground plane. The modification described is to form the ground plane surface with a rough surface morphology by various selective deposition methods. In one method the metal forming the ground plane is deposited through a fine mesh screen which is either held stationary during a single pass or alternatively vibrated at a specific frequency during a single pass of deposition. Light reflected from the ground plane formed with the rough surface morphology is diffused through the bulk of the photosensitive layer breaking up the interference fringe patterns which are later manifested as a plywood pattern on output prints made from the exposed sensitive medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.