| 摘要 |
A semiconductor lighting apparatus (100) includes a plurality of semiconductor light emitting devices (6R, 6G, 6B) for outputting light having respective colors, a projector (9) for synthesizing output light of the semiconductor light emitting devices (6R, 6G, 6B) and outputting synthesized light, and a calculating portion (2). The calculating portion (2) controls a driving current (If) to be supplied to the semiconductor light emitting devices (6R, 6G, 6B) in such a manner that a light quantity (Le) detected by optical sensors (8R, 8G, 8B) approximates to a predetermined target light quantity (Li), and calculates a target temperature (Tthi) of the semiconductor light emitting devices (6R, 6G, 6B) to control temperature regulating portions (5R, 5G, 5B) in such a manner that a temperature (Tth) detected by temperature sensors (7R, 7G, 7B) approximates to the target temperature (Tthi). |
