Optoelectronic projection device

US8716724B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Norwin von Malm · Nittendorf, DE
• Klaus Streubel · Hemau, DE
• Patrick Rode · Regensburg, DE
• Karl Engl · Niedergebraching, DE
• Lutz Höppel · Alteglofsheim, DE
• Jürgen Moosburger · Regensburg, DE

Key dates

• Filing date: Nov 27, 2009
• Grant date: May 6, 2014
• Expiry date: Aug 31, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/82

Abstract

An optoelectronic projection device which generates a predefined image during operation, including a semiconductor body having an active layer that generates electromagnetic radiation and a radiation exit side and is an imaging element of the projection device, wherein, to electrically contact the semiconductor body, a first contact layer and a second contact layer are arranged at a rear side of the semiconductor body, the rear side lying opposite the radiation exit side, and are electrically insulated from one another by a separating layer.