SURREPTITIOUS PHOTOGRAPHING PREVENTION SHEET,申请号JP20120032149-传众专利搜索

SURREPTITIOUS PHOTOGRAPHING PREVENTION SHEET

申请公布号：JP2012185497(A)

申请号：JP20120032149

申请日期：2012.02.16

申请公布日期：2012.09.27

申请人：

USHIO INC;SOGO KEIBI HOSHO CO LTD;NAGOYA UNIV

发明人：ODA FUMIHIKO;FUJIKAWA MAKI;FUCHI SHINGO;TAKEDA MIWA

分类号：G09F9/00;C03C3/15;C09K11/00;C09K11/08;C09K11/54;C09K11/63

主分类号：G09F9/00

摘要：<P>PROBLEM TO BE SOLVED: To provide a surreptitious photographing prevention sheet capable of preventing surreptitious photographing of an image on a surreptitious photographing prevention object despite a simple configuration. <P>SOLUTION: When a surreptitious photographing prevention sheet 10 including an infrared light-emitting layer 14 containing infrared phosphor particles 14B is installed on a surreptitious photographing prevention object such as a display screen or the like of a display device or the like, the infrared phosphor particles 14B in the infrared light-emitting layer 14 emit infrared light by visible light irradiated from the display screen or visible light included in natural light. Therefore, when an image displayed on the display screen is taken with a photographing device through the surreptitious photographing prevention sheet 10, a CCD has sensitivity to an infrared wavelength region, the infrared light by the infrared phosphor particles 14B is photographed. The infrared light by the emission of the infrared phosphor particles 14B blocks the photographing of the display image with the photographing device so as to prevent the surreptitious photographing. <P>COPYRIGHT: (C)2012,JPO&INPIT