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. 24, 2014
Filed:
Aug. 12, 2011
Daniel Kelly, San Jose, CA (US);
Chia-jean Wang, Palo Alto, CA (US);
Daniel Kelly, San Jose, CA (US);
Chia-Jean Wang, Palo Alto, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
An image waveguide includes first and second reflective surfaces being substantially parallel and opposing each other. The waveguide receives light from an in-coupling region through the first reflective surface, the light received at a first angle of incidence with respect to the second reflective surface. A reflective end surface positioned at an end of the waveguide and offset from perpendicular to the first and second reflective surfaces reflects the light to a second angle of incidence with respect to the second reflective surface that is less than the first angle of incidence. The light exits through an out-coupling region disposed on the first reflective surface to output the light at the second angle of incidence from the waveguide out the first reflective surface.