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:
Apr. 07, 2015
Filed:
Dec. 07, 2006
Tsuyoshi Yamauchi, Tokyo, JP;
Masachika Watanabe, Tokyo, JP;
Tomoko Kumasawa, Tokyo, JP;
Makio Kurashige, Tokyo, JP;
Akiko Kitamura, Tokyo, JP;
Mitsuru Kitamura, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Tsuyoshi Yamauchi, Tokyo, JP;
Masachika Watanabe, Tokyo, JP;
Tomoko Kumasawa, Tokyo, JP;
Makio Kurashige, Tokyo, JP;
Akiko Kitamura, Tokyo, JP;
Mitsuru Kitamura, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A process by which a multi-image type hologram, wherein one 3D image changes over to another depending on a viewing direction, can be fabricated in a simple construction, and a multi-image type hologram fabricated by that process. According to the process for the fabrication of a multi-image type hologram wherein one image changes over to another depending on a viewing direction, the area of a hologram recording material is divided into a plurality of sub-areas. Objects to be displayed on different images are holographically recorded in the respective sub-areas, using reference light having the same angle of incidence, images recorded in the respective sub-areas are simultaneously reconstructed from the recorded first-stage hologram, so that a second-stage hologram recording material is located near the reconstructed object images for recording them as a reflection or transmission type volume hologram.