Light emission unit
AssigneeFuji Photo Optical Co., Ltd.
InventorTsutomu Kimura
Life of this patent
Estimating the term…
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.
Claims18
A light emission unit comprising:
- a plurality of light emission element arrays for emitting a plurality of linear light beams of different color from a light emitting surface, each of said light emission element arrays having a plurality of light emission elements arranged in line for emitting light beam of same color;
- a transparent plate for protecting said light emitting surface of said light emission element arrays;
- and
- a plurality of lens arrays arranged on said transparent plate such that each of said lens arrays corresponds to each of said light emission element arrays, respective said lens array including a plurality of condenser lenses, each of which is faced to each of said light emission elements;
- wherein the plurality of lens arrays and the transparent plate are respective portions of a single piece of transparent material.
A light emission unit used for printer, said printer exposing an image to a photosensitive material, said light emission unit comprising:
- a plurality of light emission element arrays for emitting a plurality of linear light beams of different color from a light emitting surface, each of said light emission element arrays having a plurality of light emission elements arranged in line for emitting light beam of same color;
- a transparent plate for protecting said light emitting surface of said light emission element arrays;
- and
- a plurality of lens arrays arranged on a first side of said transparent plate such that each of said lens arrays corresponds to each of said light emission element arrays, respective said lens array including a plurality of condenser lenses, each of which is faced to each of said light emission elements;
- wherein the plurality of lens arrays and the transparent plate are respective portions of a single piece of transparent material.
Dependencies are inferred from the claim text.