TY - JOUR AU - Yoshihiro Ohno AU - Tatsukiyo Uchida C2 - Lighting Research & Technology DA - 2017-10-16 LA - en M1 - 49 PB - Lighting Research & Technology PY - 2017 TI - M/P Ratio Method – Simplified Field Measurement Method for CIE Mesopic Photometry System ER -