| 摘要 |
A digital camera includes an image sensor unit which is fixed to a camera body, the image sensor unit incorporating an image sensor package including an image sensor, and a reference plate which serves as a positional reference when fixed to the camera body, the image sensor package being mounted to the reference plate. An internal member of the camera body to which the reference plate is fixed is made of a material which is higher in strength and has a lower specific heat capacity than aluminum and resin. The reference plate is made of a material which is greater in strength than aluminum and resin, a surface of the reference plate including a coating having a higher degree of thermal conductivity than aluminum so that heat produced by the image sensor package is transferred to the internal member via the coating.
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