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:
Nov. 08, 2011
Filed:
Mar. 18, 2010
Kazuhiro Yashiki, Tokyo, JP;
Naoaki Shindou, Tokyo, JP;
Noriyuki Itou, Tokyo, JP;
Hidetaka Ide, Tokyo, JP;
Naoki Minamikawa, Tokyo, JP;
Kazuhiro Yashiki, Tokyo, JP;
Naoaki Shindou, Tokyo, JP;
Noriyuki Itou, Tokyo, JP;
Hidetaka Ide, Tokyo, JP;
Naoki Minamikawa, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A special visual effect is achieved. An optical device includes a light-reflecting interface provided with a first relief structure including first recesses or protrusions arranged two-dimensionally, the first relief structure emitting a first diffracted light when illuminated with a light, and a light-transmitting interface disposed in front of the light-reflecting interface and having a reflectance smaller than that of the first interface, the light-transmitting interface being provided with a second relief structure including second recesses or protrusions arranged two-dimensionally, and the second relief structure emitting a second diffracted light when illuminated with the light.