Radiometry and Colorimetry Laboratory maintains, improves and disseminates national scales of spectroradiometric and radiometric measurement of optical radiation sources in VUV, UV, VIS and IR range, as well as standards in surface color and appearance in visible light range. We participate in international comparisons to ensure traceability and international equivalence of radiometric and colorimetric standards and measurements. We provide...

  • Research on Terahertz Spectroscopy Metrology and Terahertz...

    Terahertz (THz) electromagnetic waves have a spectrum between microwave and  infrared, bridging the gap between electronics and optics. It has enormous potential applications in security, information & communication technology and astronomy....

  • Development of A New Primary Scale of Spectral Radiance and...

    Based on high temperature blackbody (HTBB) BB3500M and optical feedback control system, a new national primary standard instrument for spectral radiance and spectral irradiance was established at Changping campus of NIM. The new set of primary...

International Cooperation

National Measurement Standards and CMCs

Standard of Blackbody Radiation in Room Temperature

Standard of Ultraviolet Radiometers

Standard Apparatus of UV-VUV Spectral Radiance

Primary Standard of Colorimetry

Primary Standard of Spectral Radiance and Spectral Irradiance



  • 86-10-64524813 Dai Caihong
  • Research Fellow. Director of radiometry and colorimetry lab, optical division. Vice director committee member of the Division for Photobiology and Photochemistry of CIES.
  • daicaihong@nim.ac.cn

Contact Us

Dr. Dai Caihong  
Tel: +86-10-64524813
Email: daicaihong@nim.ac.cn
Address: No.18 Bei San Huan Dong Lu, Chaoyang District, Beijing, P.R.China, 100013.