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. 30, 2017
Filed:
Mar. 26, 2013
Nokia Corporation, Espoo, FI;
Mikko A. Juhola, Muurla, FI;
Marko K. Parikka, Salo, FI;
Antti I. Wright, Kangasala, FI;
Timo J. Haikka, Tampere, FI;
Mikko T. Hautala, Turku, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
The specification and drawings present a new apparatus and a new apparatus for compensation of the optical aberrations caused by a non-planar window (or windows in general, for example windows having a curved surface) using a diffractive (optical) element such as a diffractive foil in electronic/camera devices such as electronic devices with displays. According to an embodiment, an optical window of an electronic device/camera may have at least a non-planar front surface which causes an aberration of an input image. This aberration can be corrected to be below predefined one or more parameters (such as a circle with a predefined maximum radius and/or a directional shift by a predefined maximum value) using a diffractive element/foil located on/near a back surface of the optical window or between the back surface of the optical window and a sensor/camera image plane where the input image is focused on.