Introduction

Among the light source indicators, in addition to photometric quantities, there are also color-related indicators, such as tristimulus value, dominant wavelength, color temperature, color rendering index, etc. This station will lead students to understand the international standards and measurement methods related to light sources in color science. In particular, with the widespread application of LEDs, this experiment will highlight LED-related content. Students can understand the LED industry testing standards and methods through spectral measurements of various LED devices.

Training Content

Measure the light source tristimulus value;

Measure color temperature and color rendering index;

Measurement of LED dominant wavelength and chromaticity coordinates;

LED types and spectrum measurements;

Geometric conditions for LED measurement.