| 发明名称 | Light-shielding material for optical instrument and manufacturing method thereof | ||
| 摘要 | Provided is a method of manufacturing a light-shielding material for use in optical instrument and having a light-shielding coat with a broad low-gloss region while maintaining the physical properties, such as a light-blocking property, necessary for light-shielding coat. In this method for manufacturing a light-shielding material comprising a light-shielding coat formed on the substrate, a coating liquid is prepared containing at least a binder resin, black fine particles and a matting agent having a variation coefficient of 20 or larger. Next, this coating liquid is coated on the substrate and dried to form a light-blocking coat. | ||
| 申请公布号 | US9405042(B2) | 申请公布日期 | 2016.08.02 |
| 申请号 | US201214008695 | 申请日期 | 2012.02.29 |
| 申请人 | KIMOTO CO., LTD. | 发明人 | Toshima Yasumaro |
| 分类号 | G02B1/00;G02B1/10;G02B5/22;G02B5/02;G02B5/00 | 主分类号 | G02B1/00 |
| 代理机构 | Bacon & Thomas, PLLC | 代理人 | Bacon & Thomas, PLLC |
| 主权项 | 1. A method of manufacturing a light-shielding material for an optical instrument, having an optical transmission density exceeding 4.0, comprising a light-shielding coat having a single-layer structure, wherein at least black fine particles and a matting agent are dispersed uniformly in a binder resin, formed on a substrate, characterized by: preparing a coating liquid comprising at least a binder resin, black fine particles and a matting agent having a variation coefficient of 20 or larger and an average particle diameter corresponding to 35 to 110% of a film thickness of the light-shielding coat, applying the coating liquid on the substrate and drying to form a light-shielding coat. | ||
| 地址 | JP | ||