| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an illumination device comprising a light emitting tube, a main reflector, and a subsidiary reflector wherein the light emitting tube can prevent reduction in life and reliability due to the subsidiary reflector even when the subsidiary reflector is provided to surround the light emitting portion and its vicinity and to provide a projector with the illumination device. <P>SOLUTION: The illumination device 100 includes a light emitting tube 10 with a first electrode 12a, a second electrode 12b, a light emitting portion 11, a first sealing portion 13a located at one side of the light emitting portion, and a second sealing portion 13b located at the other side of the light emitting portion; a first reflector 20 mounted on the first sealing portion 13a; and a second reflector 30 mounted on the second sealing portion 13b. The reflective surface of the second reflector 30 is disposed nearer to the light emitting portion 11 than the reflective surface of the first reflector 20. The length of a portion sealed in the second sealing portion 13b along the second electrode axis 16b is greater than the length of a portion sealed in the first sealing portion 13a along the first electrode axis 16a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
