| 摘要 |
<p>Provided is a black diamond-like carbon (DLC) coating film with an inclined structure, for enhancing the low reflectivity, black color properties, light weight, sliding properties, and water-repellent properties of a shutter blade. Also provided is a black light shield having reduced weight and excellent high-temperature/humidity characteristics, which uses a resin film or the like as a base material and has the black DLC coating film with an inclined structure as a surface layer thereof. A black diamond-like carbon (DLC) coating film (A) with an inclined structure, formed by a sputtering method and containing titanium, carbon, and oxygen, is characterized in having a structure in which the carbon content of the black DLC coating film (A) with an inclined structure is 2.0-30.0 in terms of the C/Ti atom ratio, the oxygen content is 0.8-2.2 in terms of the O/Ti atom ratio, and the C/Ti atom ratio and the O/Ti atom ratio continuously vary in the thickness direction of the film, the film thickness of the black DLC coating film (A) with an inclined structure being at least 20 nm.</p> |
