| 摘要 |
PROBLEM TO BE SOLVED: To optimize heat radiation paths for different heat sources thereby improving the heat radiation effect.SOLUTION: A first heat radiation part 21a and a second heat radiation part 21b are formed in a front base 20. A heat radiation sheet 31 thermally connects an image sensor 12 serving as a first heat source with the first heat radiation part 21a of the front base 20. A heat sink 41 thermally connects an image processing system IC 45a serving as a second heat source with the second heat radiation part 21b of the front base 20. The second heat radiation part 21b is thermally connected with a tripod seat 42 through a heat connection part 41b. A distance of a heat conduction path from the first heat radiation part 21a to the tripod seat 42 through the front base 20 is longer than a heat conduction path from the second heat radiation part 21b to the tripod seat 42 through the front base 20. |
