On the Sheen Gloss

摘要: Experiments of sheen gloss metals and theoretical explanation them are given. Sheen is related with the specularly reflected light which appears by a incident angle above critical θ c . connected r.m.s. roughness h as: \begin{aligned} 2h\cos\theta_{c}{=}\lambda/k\quad k{=}2{\sim}3 \end{aligned} This formula explained theory similar to Kirchhoff's diffraction theory, treating as stationary random function given Ornstein-Uhlenbeck process. Scattered separated R - D -comp. former corresponds its brightness ψ \exp\left(-\frac{16\pi^{2}h^{2}}{\lambda^{2}}\cos^{2}\psi\right). comp. part that represents scattered light.