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. 18, 2023
Filed:
Nov. 24, 2017
Applicant:
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Inventors:
Assignee:
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03H 1/00 (2006.01); G03H 1/02 (2006.01); G03H 1/16 (2006.01); G03H 1/24 (2006.01); B42D 25/328 (2014.01); B42D 25/378 (2014.01);
U.S. Cl.
CPC ...
G03H 1/0011 (2013.01); G03H 1/0248 (2013.01); G03H 1/16 (2013.01); G03H 1/24 (2013.01); B42D 25/328 (2014.10); B42D 25/378 (2014.10); G03H 2222/12 (2013.01); G03H 2222/17 (2013.01);
Abstract
An optical member utilizing light from a point light source is enabled to visually perceive a reproduced optical image with a desired color. An optical modulation device includes an optical member having a light control part to reflect or absorb light in a predetermined wavelength and to pass through light in other than the predetermined wavelength in light in at least a visible light band, in accordance with a reproduction reference image for reproducing an original image, and a light transmissive part to pass through light in at least the visible light range including the predetermined wavelength.