Light emission unit
US6479942B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Apr 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A light emission device includes organic light emission element arrays for red, green and blue, each of which has a plurality of microscopic organic light emission elements arranged in line. Three-color recording light beams of one line emitted from said organic light emission element arrays are applied to an instant photo film through corresponding condenser lenses and graded-index type optical fiber. The condenser lenses are formed integrally with a surface of a transparent plate, on the other side of which the organic light emission element arrays for red, green and blue are stacked. In order to correct axial chromatic aberration, radius of curvature of each condenser lens is varied in accordance with the color of light beam emitted from corresponding organic light emission element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.