| 摘要 |
PROBLEM TO BE SOLVED: To decrease replacing frequency of an incandescent lamp, and obtain irradiating light of a stable spectral distribution. SOLUTION: On a turn table 1 a plurality of halogen lamps 12 are mounted, and the halogen lamps 12 are successively positioned on an optical axis of light which is condensed by a converging mirror 16. The turn table 1 can reciprocate along the optical axis, and the halogen lamp 12 can be moved to the inside of the converging mirror 16 at the time of application, and retreated to the place where an interference with the converging mirror 16 does not exist at the time of replacing the lamp 12. It is possible to control quantity of light according to a standard quantity by means of a reciprocation of the halogen lamp 12 in the vicinity of a focus of the converging mirror 16. A light control device for a xenon lamp 11 is separately provided. |
