The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2000
Filed:
Mar. 11, 1999
Mark William Hudson, Russiaville, IN (US);
Ning Wu, Rancho Palos Verdes, CA (US);
Doyle Joseph Groves, Noblesville, IN (US);
Timothy James Newman, Noblesville, IN (US);
Dale James Igram, Kokomo, IN (US);
Jianhua Li, Kokomo, IN (US);
Gerald Jay Witt, Carmel, IN (US);
Mark Anthony Koors, Kokomo, IN (US);
Mark Robert Vincen, Noblesville, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A head up display system having a diffusing image plane or diffuser. The light output of a relatively small image source is imaged on the diffuser by way of imaging optics. A mirror is used to image light from the diffuser onto a windshield and correct for distortion caused by the windshield. The diffuser is advantageously used when a large field-of-view is desired, or sun load characteristics need to be addressed. The diffuser may be flat or curved in order to optimize the system for different applications. The magnification of the mirror may be made relatively low, and the solar energy density that is made incident on the image source is reduced, providing for a low cost, high performance, color head up display system.