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:
Feb. 09, 2016
Filed:
Dec. 29, 2014
Applicant:
Google Inc., Mountain View, CA (US);
Inventors:
Adam E. Norton, Palo Alto, CA (US);
Andrei S. Kazmierski, Pleasanton, CA (US);
Assignee:
Google Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/625 (2014.01); B32B 37/24 (2006.01); B32B 37/12 (2006.01); G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
G03B 21/625 (2013.01); B32B 37/1284 (2013.01); B32B 37/24 (2013.01); G02B 5/0242 (2013.01); B32B 2037/243 (2013.01); G02B 5/0278 (2013.01);
Abstract
A projection screen includes a transparent substrate having a first side and a second side, a first optically clear adhesive ('OCA') layer disposed across the first side of the transparent substrate, a first two-dimensional ('2D') matrix of clear beads partially embedded into the first OCA layer, and a dark layer disposed across the first OCA layer filling in exposed gaps between the clear beads to block and absorb light incident upon the exposed gaps between the clear beads. The clear beads form optical paths through the dark layer.