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. 29, 1999
Filed:
Jan. 17, 1997
Jung Young Son, Seoul, KR;
Vadim V Smirnov, St. Petersburg, RU;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
A color holographic head up display which can be mounted on, for example, an airplane or automobile for projecting a color image displayed on a screen. The color holographic head up display in accordance with the present invention comprises an information display comprising a 2-dimensional array of pixels for displaying information to be projected, a relay optical system for relaying an image displayed on the information display, and a holographic combiner having holographic optical elements whose number is the same as the number of the pixels of the information display for delivering the image from the relay optical system to the viewing zone of the human eye, the holographic optical elements being arranged to correspond to the pixels of the information display. According to the present invention, the surrounding scenery and navigation information of a color image are simultaneously projected without noise due to intermodulation, and a high diffraction efficiency can be achieved.