LEDs Test Method: Basic Radiation Quantity and Photometric Quantity
1 Radiation Quantity 1.1 Radiant Energy ( LED Radiation Measurement ) Launching, transmitting and receiving the energy in the form of radiation, the unit is J (joule). 1.2 Φe Radiant flux Radiation quantity is usually called radiant power Pe, it is the power launched, transmitted and received by the radiation source. The unit is watts [...]
