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:
Aug. 26, 2014
Filed:
Jan. 20, 2012
Steven J. Robbins, San Jose, CA (US);
James H. Stanley, Palo Alto, CA (US);
Francois Raynal, San Jose, CA (US);
Robert D. Brown, Lake Oswego, OR (US);
James M. Tedesco, Livonia, MI (US);
Wyatt L. Hendrick, San Diego, CA (US);
Milan M. Popovich, Leicester, GB;
Jonathan D. Waldern, Los Altos Hills, CA (US);
Alastair J. Grant, San Jose, CA (US);
Steven J. Robbins, San Jose, CA (US);
James H. Stanley, Palo Alto, CA (US);
Francois Raynal, San Jose, CA (US);
Robert D. Brown, Lake Oswego, OR (US);
James M. Tedesco, Livonia, MI (US);
Wyatt L. Hendrick, San Diego, CA (US);
Milan M. Popovich, Leicester, GB;
Jonathan D. Waldern, Los Altos Hills, CA (US);
Alastair J. Grant, San Jose, CA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
An apparatus for providing an optical display includes an optical substrate for propagating light received from a light source, a first set of one or more switchable diffractive elements in the substrate, and a second set of one or more switchable diffractive elements in the substrate. Each diffractive element in the second set corresponds to a diffractive element in the first set. Each of the diffractive elements in the first and second sets is configured to switch between on and off states. One of the states is for diffracting light and the other state for allowing light to pass through. Each of the first set of diffractive elements is configured to diffract the light at an angle for propagation in the substrate. Each of the second set of diffractive elements is configured to diffract the light for display.