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:
May. 31, 2016
Filed:
Sep. 23, 2009
Jingjing LI, Palo Alto, CA (US);
David A. Fattal, Mountain View, CA (US);
Raymond G. Beausoleil, Redmond, WA (US);
Marco Fiorentino, Mountain View, CA (US);
Jingjing Li, Palo Alto, CA (US);
David A. Fattal, Mountain View, CA (US);
Raymond G. Beausoleil, Redmond, WA (US);
Marco Fiorentino, Mountain View, CA (US);
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Abstract
Embodiments of the present invention relate to planar optical devices composed of one or more sub-wavelength diffraction grating layers. In one embodiment, an optical device includes a first substantially planar reflective structure (), a second substantially planar reflective structure (), and a substantially planar sub-wavelength grating layer () disposed between the first reflective structure and the second reflective structure. The grating layer is configured with lines (--) having line widths, line thicknesses, and line period spacing selected to control phase changes in different portions of a beam of light transmitted through the optical device.