Patent Number: 7,824,822

Title: Photosensitive compositions for volume hologram recording, photosensitive medium for volume hologram recording and volume hologram

Abstract: The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R.sup.1--R.sup.3--(CF.sub.2)n-R.sup.4--R.sup.2 wherein R.sup.1 and R.sup.2 are photoreactive groups which can be bonded to each other by photoreaction, and each of R.sup.3 and R.sup.4 is independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.

Inventors: Otaki; Hiroyuki (Shinjuku-ku, JP), Yoshihara; Toshio (Shinjuku-ku, JP), Maeno; Yoshihito (Shinjuku-ku, JP)

Assignee: Dai Nippon Printing Co., Ltd.

International Classification: G03H 1/02 (20060101)

Expiration Date: 2019-11-02 0:00:00