Apparatus for laser marking indicia on a photosensitive web
US6400389B1 · kind B1 · utility
9Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jan 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/521
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for laser marking indicia on a moving photosensitive web by impinging laser energy upon the moving web with a laser printer device. The laser printer device is provided with a nozzle element that concentrates beams of radiation onto the web with substantially reduced incidences of fog spots on the web. The nozzle element extends circumferentially, substantially around a laser beam tube and the predetermined optical path defined by laser beams emanating from the laser beam tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.