About SHITOMI HIROSHI
About 産業技術総合研
About light emitting diode
About electroluminescence
About weighing institution
About calibration
About solid state device
About photometry
About traceability
About artificial lighting
About organic semiconductor
About LED illumination
About OLED
About temperature characteristic
About metric standard supply system
About solid lighting
About commercialization
About organic EL
About Light sources,lighting apparatus
About Light emitting devices
About 固体照明
About 普及
About 光学
About 展開
About 測光
About 放射測定