Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hans-Juergen Dobschal0
Date of Patent
March 2, 2010
Patent Application Number
11425805
Date Filed
June 22, 2006
Patent Primary Examiner
Patent abstract
The invention is directed to an optical unit for a head-up display comprising an image generator, a mirror and a cover plate which are arranged in a housing one behind the other in the direction of light propagation. The beam path is directed to a windshield. The invention is wherein that the mirror is a rear-surface mirror whose reflection surface has a light-bundling action. The rear-surface mirror has, in addition, a refractive action that can be generated by the refractive index of the mirror material and a material thickness which changes between the reflection surface and the transmissive surface.
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