| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of making mechanical strength strong enough against bending stress, tensile stress, or the like and reducing also peeling and cracking in a particulate deposit layer by inhibiting a material such as a protective film from entering the gaps among the particulates without having an influence on an optical characteristic such as a reflection characteristic when applying that material onto the particulate deposit layer such as photonic crystal. SOLUTION: The particulate structure uses a visible light absorbing body 1 absorbing visible light as a substrate, and silica particulates of a 290 nm diameter are accumulated thereon as a particulate layer 2 for reflecting red light; silica particulates of a 240 nm diameter are accumulated thereon as a particulate layer 3 for reflecting green light; silica particulates of a 210 nm diameter are accumulated thereon as a particulate layer 4 for reflecting blue light; and further on these, a polymer layer 60 or gelatin layer 70 consisting of polymers larger in size than the gaps among the particulates is formed. Moreover, the optical medium such as a reflective screen has a diffusion film 7 on this polymer layer 60 or gelatin layer 70. COPYRIGHT: (C)2004,JPO&NCIPI |
