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:
Aug. 25, 2015
Filed:
Mar. 05, 2010
Isao Matsubara, Tucson, AZ (US);
Yasuyuki Unno, Tucson, AZ (US);
William Dallas, Tucson, AZ (US);
Tom D Milster, Tucson, AZ (US);
Isao Matsubara, Tucson, AZ (US);
Yasuyuki Unno, Tucson, AZ (US);
William Dallas, Tucson, AZ (US);
Tom D Milster, Tucson, AZ (US);
CANON KABUSHIKI KAISHA, Tokyo, JP;
ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, Tuscon, AZ (US);
Abstract
The present invention provides a hologram which forms a light intensity distribution on a predetermined plane by using incident light. The hologram includes a plurality of cells configured to control both a phase of a first polarized light component in a first polarization direction of the incident light and a phase of a second polarized light component in a second polarization direction perpendicular to the first polarization direction, to form a phase difference distribution between phase distributions for the first and second polarized light components. The plurality of cells are designed so that a number of phase difference levels of the phase difference distribution is less than a number of phase levels of the phase distribution of the first polarized light component.