Patent ID: 6072171
Filing Date: 2000-06-06
Classification: H04N,Y10S

Abstract:
A linear illumination device for irradiating a document provided so as to face the light emitting element array with linear illumination light along a first direction, comprising:a substrate extending in the first direction; anda light emitting array provided on the substrate and arranged in the first direction,wherein a plurality of concavities are formed on a face of the substrate on which the light emitting array is provided, each of the light emitting elements is provided on a bottom face of a corresponding one of the concavities, and the bottom face and a side face of each of the concavities are reflective faces or mirror faces; and,wherein the light emitted from each of the light emitting elements is comprised of a plurality of light emission components, which, other than a light emission component emitted in a forward direction perpendicular to both a main scanning direction and a sub-scanning direction, are reflected off a surface prior to irradiating the document.