| Title |
Characteristic Change of Electrodeless Sulfur Lamp Induced by Adding of Nal |
| Authors |
구선근(Goo, Sun-Geun) ; 박기준(Park, Gi-Jun) ; 추장희(Chu, Jang-Hee) |
| Keywords |
무전극 황전등 ; 상관색온도 ; 연색평가수 ; 휘도 ; 방사휘도 NaI |
| Abstract |
We developed the correlated color temperature (CCT) control technique for electrodeless sulfur lamp (ESL) by adding a few milligrams of NaI into sulfur discharge bulb. Nal produces intense Na D-line that changes the CCT of the ESL. We can adjustthe CCT in the range of 8,400 K to 3,600 K. Color rendering index can be maintained between 79 and 90 for the adjustable range of the CCT. the NaI helps the ESL dischargeable at below 0.5 kW of forward microwave power into the bulb. We have shown that this technique did not cause reduction of luminance compared to electrodeless elemental sulfur lamp. |