Optoelectronic component

US8624289B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventor

• Ralph Wirth · Lappersdorf, DE

Key dates

• Filing date: Sep 10, 2008
• Grant date: Jan 7, 2014
• Expiry date: Nov 4, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/854

Abstract

An optoelectronic component comprising the following features is disclosed, at least one semiconductor body (1) provided for emitting electromagnetic radiation of a first wavelength range, an inner radiation-permeable shaped body (2), into which the semiconductor body (1) is embedded, a wavelength-converting layer (6) on an outer side (5) of the inner shaped body (2), said layer comprising a wavelength conversion substance (8) suitable for converting radiation of the first wavelength range into radiation of a second wavelength range, which is different from the first wavelength range, a coupling-out lens (10), into which the inner shaped body (2) and the wavelength-converting layer (6) are embedded, wherein the coupling-out lens (10) has an inner side enclosed by an inner hemisphere area having a radius Rconversion, and an outer side enclosing an outer hemisphere area having a radius Router, and the radii Rconverstion and Router meet the Weierstrass condition: Router≧Rconversion*nlens/nair, where nlens is the refractive index of the coupling-out lens and nair is the refractive index of the surroundings of the coupling-out lens.