| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive pseudo-sunlight irradiation device capable of irradiating pseudo-sunlight having a highly precise light-emitting spectrum on a large irradiation face without upsizing the device.SOLUTION: A pseudo-sunlight irradiation device 30 includes a xenon lamp 1, a xenon taper 3 for lessening an extending angle in a width direction of light, a coupling taper 4 for enlarging an extending angle in a height direction of light, a light guide plate 9, and a scattering groove 8. A reflecting member 10 is arranged on a surface opposite to a light-incident surface of the light guide plate 9. |
