| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet light emitting device with improved light extraction efficiency.SOLUTION: An ultraviolet light emitting device comprises an active layer emitting light with a wavelength band of 200 nm to 405 nm, and a light-transmitting layer disposed on the active layer and having a lower part facing the active layer, where at least one of side and upper parts of the light-transmitting layer may have a surface-processed pattern portion. |
