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

[16p-P07-43] Evaluation of stability of ultraviolet (UV) LED light source using duty ratio control

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

Keywords:

UV LED,Duty ratio,Photoluminescemce light source

Stability of ultraviolet (UV) LED light source using duty ratio control was evaluation for highly stable excitation light source applications. Temporal variations of optical intensity and temperature of UV LED were successfully reduced using a PWM technique with small duty ratio less then 10 %.