人間の目による網糸の水中視程の研究-I.
黒糸および灰色プレート板の水中視程
1972 年 38 巻 2 号 p. 107-116
詳細
1972 年 38 巻 2 号 p. 107-116
The visual range of black twines and grey plates was measured succesively in a tank water, illuminated by diffused light from flourescent lamps for varying physical conditions, namely, colour and reflectance of an object, turbidity of water and brightness which might have direct effects upon underwater visibility. The visual range of black twines and grey plates decreases with the increase of attenuation coefficient, and with the decrease of diameters. However, the visual range of grey plates has different tendency from that of black twines, namely, plates of smaller reflectance become more visible than large ones with the increase of attenuation coefficient.
