| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluorescent lamp type illumination device in which the reduction of deformation generated by a temperature difference in a pipe caused by the self-heating of a light-emitting element is enabled, and a highly-densified large-current type light-emitting element can be mounted. <P>SOLUTION: The fluorescent lamp type illumination device 1 is equipped with a support substrate 50 arranged on the rear face of an LED substrate 40, and a light-transmitting tubular member 10 to house and support the support substrate 50. The interior of the light-transmitting tubular member 10 is partitioned by the support substrate 50. A first space 2 formed between the light-transmitting tubular member 10 and the support substrate 50 and a second space 3 formed between the light-transmitting tubular member 10 and the LED substrate 40 are set to have different volumes. <P>COPYRIGHT: (C)2011,JPO&INPIT |
