Lens-attached light-emitting element

Details Lens-attached light-emitting element Lens-attached light-emitting element

2006-11-28

2006-11-28

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Single component with multiple elements

C359S710000, C359S796000, C257S098000

Reexamination Certificate

active

07142377

ABSTRACT:
A lens-attached light-emitting element for increasing an optical availability efficiency is provided. A lens-attached light-emitting element for structuring a light-emitting element array arranged in one dimension comprises a light-emitting element having an approximately U-shaped light-emitting area; and an approximately U-shaped composite lens including a combination of two cylindrical lenses arranged in a direction of the one dimension, one cylindrical lens, and four hemispherical lenses. Where the width in a direction of the one dimension of the light-emitting area is p, the thickness of the base portion of the composite lens is in the range of 0–0.71 p, a radius of curvature of each of the cylindrical lens and hemispherical lens is in the range of 0.20 p–0.47 p, and a center-to-center distance between at least two cylindrical lenses is in the range of 0.35 p–0.89 p.

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patent: WO 2005/001944 (2005-01-01), None

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