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:
Jun. 10, 2014
Filed:
Sep. 30, 2011
Robert B. Wood, Beaverton, OR (US);
Ricky J. Theriault, King City, OR (US);
Duane P. M. Pond, Tigard, OR (US);
Lincoln J. Burns, Portland, OR (US);
Robert D. Brown, Lake Oswego, OR (US);
Robert B. Wood, Beaverton, OR (US);
Ricky J. Theriault, King City, OR (US);
Duane P. M. Pond, Tigard, OR (US);
Lincoln J. Burns, Portland, OR (US);
Robert D. Brown, Lake Oswego, OR (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A head up display includes an image source, collimating optics, and a combiner. The collimating optics are disposed between the combiner and the image source. The combiner receives collimated light from the collimating optics at an input and provides the collimated light to an output. The collimating light travels from the input to the output within the combiner by total internal refraction. An input diffraction grating is disposed in a first area and an output diffraction grating is disposed in a second area. The first area is smaller than the second area.