Design of portable calibration light device with tunable color temperature

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Hu, Yunlong^1 ; Jiang, Yingjie^1 ; Liu, Yingqi^1 ; Chen, Linghua^1

Zhejiang University, Kunsha Innovation Institute, Suzhou, China^1

关键词: Color temperatures;    Constant power;    Multi channel;    Tunable color;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022042/pdf
DOI  :  10.1088/1755-1315/300/2/022042

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Studied on multiples color temperature LEDs as calibration light based on array, and designed a portable calibration light device with tunable color temperature which could simulate various luminous environment to test the performance of camera and sensor. The experimental carried on the light device. The results showed that the calibration light source could accurately reappear the color temperature light source in the range of 2500K to 6500K under the condition of multi channels constant power supply, and the precision of color temperature is within 30K and the light is stable, the uniformity is within 2.5%.