道路照明に関する薄明視レベルにおけるセラミック・メタルハライドランプの優位性(<特集>薄明りにおける目の特性に基づく高効率で安全な照明)

抄録

Near the road shoulder which serves as the minimum luminance in road lighting, it becomes the visibility of a mesopic vision level and feels bright the ceramic metal halide lamp with many short wavelength ingredients compared with a high-pressure sodium lamp.