| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a light shielding film useful as a light-shielding member for various optical apparatus, such as a camera, a video camera, a copying machine and a developing machine, and excellent in a light shielding property without reflection from a punched edge surface; a manufacturing method thereof; and applications thereof. <P>SOLUTION: A light shielding film with a thickness of 25 μm or less contains a resin component (A), a black pigment (B), and an amorphous silica (C) with a mean particle diameter of 3-10 μm. The content of the black pigment (B) is 3-20 parts by weight to 100 parts by weight of the resin component, and the content of the amorphous silica (C) is 15-40 parts by weight. Irregularities are formed on a surface thereof, and irregularities with surface roughness (arithmetic mean height Ra) of 1 μm or more are formed on an edge surface thereof punching the periphery. <P>COPYRIGHT: (C)2013,JPO&INPIT |
