| 摘要 |
An LED unit (1) which serves as an illumination light source includes: a light-emitting element; a circuit board (70) provided in a drive circuit which drives the light-emitting element; a lead wire (43) electrically connecting the light-emitting element and the drive circuit; and a case (50) including a first opening (55a) which is an elongated opening into which the lead wire (43) is inserted. The circuit board (70) includes a second opening (71) which is an elongated opening into which the lead wire (43) is inserted, and the first opening (55a) and the second opening (71) are disposed so that a straight line extending in a lengthwise direction of the first opening (55a) and a straight line extending in a lengthwise direction of the second opening (71) three-dimensionally cross each other. |
