[16p-P07-1~46] 1 Interdisciplinary Physics and Related Areas of Science and Technology (Poster)

[16p-P07-42] Evaluation of stability of ultraviolet (UV) LED light source using duty ratio control

Minami Saitou¹, Kazuki Yoshida¹, Tomoki Yoshida¹, Hazuki Komori¹, Ayaka Kojima¹, 〇Tooru Katsumata¹, Hiroaki Aizawa¹, Takeshi Matsumoto² (1.Toyo Univ., 2.Matsumoto Precision)

Keywords:

UVC LED,Duty ratio

Optical intensity of UVC LED has been stabilized by a PWM technique with small duty ratio less than 10 %. UVC LEDs with negative and positive temperature coefficients were successfully stabilized by a PWM technique.