Light sensor for determining a position of a light source

US7642493B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Peter Balzer · Chenango Forks, US
• Oliver Bard · Falkensee, DE
• Gerald Kloiber · Feldkirchen in Kärnten, AT
• Michael Kubiak · Berlin, DE
• Gero Zimmermann · Berlin, DE

Key dates

• Filing date: Feb 25, 2005
• Grant date: Jan 5, 2010
• Expiry date: Jul 8, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2001/0276
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A light sensor for recording the position of a light source includes a photo detector and a light modulator. The light modulator is configured to modulate the quantity of light hitting the photo detector based on an incident angle (α) of the light from the light source on the sensor.