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. 17, 2015
Filed:
Feb. 09, 2011
Zeev Zalevsky, Rosh HaAyin, IL;
Alex Zlotnik, Ashdod, IL;
Shai Ben-yaish, Petach Tiqva, IL;
Ofer Limon, Kfar-Saba, IL;
Ido Raveh, Neve Yarak, IL;
Zeev Zalevsky, Rosh HaAyin, IL;
Alex Zlotnik, Ashdod, IL;
Shai Ben-Yaish, Petach Tiqva, IL;
Ofer Limon, Kfar-Saba, IL;
Ido Raveh, Neve Yarak, IL;
Brien Holden Vision Institute, Sydney, New South Wales, AU;
Abstract
An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.