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. 30, 2020
Filed:
May. 10, 2016
Applicant:
The Technology Partnership Plc, Royston, Hertfordshire, GB;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G02B 5/18 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0037 (2013.01); G02B 5/18 (2013.01); G02B 27/0101 (2013.01); G02B 27/0149 (2013.01); G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); G02B 2027/011 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0145 (2013.01); G02B 2027/0154 (2013.01); G02B 2027/0178 (2013.01);
Abstract
An optical projection system provides part of a display system that presents a displayed virtual image at a predetermined distance in front of a viewing position. Said display system comprises a projection system and a primary reflecting optic that deflects an off-axis incoming optical signal from the projection system toward the viewing position. Said projection system is arranged to provide an adapted output image signal that compensates for optical aberration effects introduced by the reflecting optic to ensure provision of a reduced aberration display image to the viewing position, and where the reflecting optic comprises a grating structure.