Image processing method and image processing apparatus
US8098266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2009 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jul 7, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4753
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image processing method which contains: delivering laser light to a thermoreversible recording medium to heat the medium and record an image thereon, the medium reversibly changing a transparency or tone thereof depending on a temperature thereof; and heating the medium to erase the image recorded thereon, wherein the delivering is carried out using an image processing device containing: a laser light emitting unit; a light scanning unit disposed on a plane onto which laser light emitted from the laser light emitting unit is delivered; a light intensity distribution adjusting unit to change a light intensity distribution of the laser light; and a fθ lens to condense the laser light, and wherein energy of the laser light passing through a peripheric portion of the fθ lens and traveling onto the medium is lower than energy of the laser light passing through a center portion of the fθ lens and traveling onto the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.