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:
Jul. 26, 2022
Filed:
Oct. 18, 2018
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Yoshihiko Ogino, Tokyo-to, JP;
Keiichi Ganbe, Tokyo-to, JP;
Kazumasa Onuki, Tokyo-to, JP;
Takahiro Sahara, Tokyo-to, JP;
Yoichi Kajimura, Tokyo-to, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Abstract
A color calibration viewer used in color calibration, wherein: the relative intensity at a wavelength of 505 nm is 0.80 or more and 0.95 or less, and the relative intensity at a wavelength of 620 nm is 0.65 or more and 0.80 or less, where 1 designates the optical intensity of a peak top in a first wavelength region at a wavelength of 440 nm or more and 470 nm or less; and the ratio (A/B) of A and B is 1.00 or more and 1.46 or less, where A designates the optical intensity at a wavelength of 505 nm, and B designates the optical intensity at a wavelength of 620 nm.