Invention Grant
- Patent Title: Retroreflective member producing iridescent reflected light
- Patent Title (中): 反光构件产生虹彩反射光
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Application No.: US12665713Application Date: 2008-06-19
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Publication No.: US08684544B2Publication Date: 2014-04-01
- Inventor: Hironori Kobayashi , Shojiro Amemori
- Applicant: Hironori Kobayashi , Shojiro Amemori
- Applicant Address: JP Fukui-shi, Fukui
- Assignee: Marujin Co., Ltd.
- Current Assignee: Marujin Co., Ltd.
- Current Assignee Address: JP Fukui-shi, Fukui
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2007-161170 20070619
- International Application: PCT/JP2008/061237 WO 20080619
- International Announcement: WO2008/156138 WO 20081224
- Main IPC: G02B5/128
- IPC: G02B5/128

Abstract:
An object of the present invention is to provide a retroreflective member that can improve the visibility further. The retroreflective member includes a reflective layer and transparent microscopic beads 13. The retroreflective member gives a phase difference corresponding to a visible light wavelength to at least a part of incident light and recombines, emphasizes a light component having the visible light wavelength by interference, and returns coherent light having a visible light wavelength depending on the incident angle in the traveling direction of the incident light. The reflective layer includes a light-transmissive interference layer 14, and the interference layer 14 each has an optical layer thickness of 100 to 600 nm so as to generate an interference color having a visible light wavelength depending on the incident angle of light.
Public/Granted literature
- US20110038048A1 RETROREFLECTIVE MEMBER PRODUCING IRIDESCENT REFLECTED LIGHT Public/Granted day:2011-02-17
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