Laser printer using multiple sets of lasers with multiple wavelengths
US6064417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/473
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color printer for imaging on an image plane includes: (a) a plurality of light sources, each of the light sources being adapted to provide a spatially coherent, composite beam of light, each of the composite beams including a plurality of spectral components; (b) a single beam shaping optics accepting the composite beams, the beam shaping optics having optical elements adapted to shape said composite beams by a different amount in a scan direction and a cross scan direction, so as to form for each of the composite beams (i) a first beam waist in the cross scan direction of the composite beam and (ii) a second waist in the scan section of the composite beam, the first and second beam waists being spaced from one another; (c) a deflector adapted to move said plurality of composite beams across the image plane, the deflector being located closer to the first beam waists than to the second beam waists; and (d) scan optics located between the deflector and the image plane, the scan optics being adapted to (i) geometrically conjugate said deflector to the photosensitive medium in the cross scan direction of each composite light beam for each of the spectral components, and (ii) re-imag…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.