Image processing method and image processing apparatus
US7439993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2007 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Apr 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/105
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To provide an image processing method including at least an image recording step and an image erasing step, wherein a laser beam is parallel light and wherein the laser scanning speed for the peripheral region surrounding the central region of the optical axis of the laser beam is lower than the laser scanning speed for the central region, the laser output for the peripheral region is greater than the output for the central region, or an overlapping area between a laser irradiation area that corresponds to a peripheral region surrounding a central region of the optical axis of the laser beam and a nearby laser irradiation area is larger than an overlapping area between a laser irradiation area that corresponds to the central region and the nearby laser irradiation area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.