Illuminating system

US6213627A · kind A · utility

Assignees

• Daimlerchrysler AG · US
• Herr Heinrich A. Eberl · DE

Inventors

• Guenter Abersfelder · Sindelfingen, DE
• Helmut Grantz · Sindelfingen, DE
• Thorsteinn Halldorsson · Munich, DE
• Horst Schmidt-Bischoffshausen · Neubiberg, DE
• Stefan Uhl · Fellbach, DE
• Heinrich A. Eberl · Probstried, DE

Key dates

• Filing date: Jul 17, 1998
• Grant date: Apr 10, 2001
• Expiry date: Jul 17, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B5/32
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method and apparatus for transmitting light, wherein a holographic video screen is used as part of an illuminating system. The tendency of such a video screen to backscatter light of certain wavelengths from a predefined direction into a certain solid angle area is utilized to generate holographic images at precisely defined angles. In ambient light, such a video screen need not appear black, or at least dark.