... a constant temperature detector, Japanese Motor and Germany precision angle coder which keeps high test accuracy. It is for ... luminance limitation curve, luminaire efficiency, glare grade, effective beam angle, upward luminous flux ratio, downward luminous flux ratio, total ... than 0.1%• 1.6 Angle precision: 0.1degree• Transmission Angle resolution: γ angle is 0.01 degree C angle is 0.01 degree• ...