Activities in Japan for CIE
UTMS Society is a supporting member of the JLMA (Japan Lighting Manufacturers Association), the Japanese representative of the CIE(International Commission on Illumination).
We have been participating in the drafting of the international standard for road traffic signal lights in the Domestic Committee of Section 4 (Lighting and Signals for Traffic).
ISO/CIE standards for road traffic signal lights
UTMS society of Japan has been confirming the contents of ISO 16508:1999(E)/CIE S 006.1/E-1998 (Road traffic lights – Photometric properties of 200 mm roundel signals) through the systematic review process every 5 years.