LIGHT SOURCE DEVICE FOR MEASURING OUTPUT CHARACTERISTIC OF SOLAR CELL

PURPOSE:To miniaturize a titled device and to reduce the consumption of electric power with simple constitution and to make the illuminance at an effective irradiation domain uniform, by providing a shielding member so that the shielding member is stretched while crossing each other with the length direction of an arc of a flash lamp in a projecting light path from the flash lamp. CONSTITUTION:In the illuminance in the same direction as the length direction of an arc 21 of a flash lamp 2 on an irradiation face M, the illuminance of a central domain SA is decreased because a part of light ranging from the arc 21 of the flash lamp 2 to the central domain SA is shielded by a black wire 3 serving as a shielding member and also, decrease of the illuminance is a little because the light ranging from the arc 21 to an end part domain SB of an upper end B side and an end part domain SC of a lower end C side of an effective irradiation domain S, is not shielded by the shielding member 3, as a result, the uniformity of the illuminance of the domain S is improved.