Omnidirectional camera

An omnidirectional camera, comprising a camera mounting frame of a cylindrical hollow body, two or more first mount blocks which hold a first lens unit in a horizontal posture and are installed to said camera mounting frame from a horizontal direction, and first circuit boards provided on inner end surfaces of said first mount blocks,

• wherein said camera mounting frame and said first mount blocks are made of a metal material,
• wherein said first circuit board has a ground layer formed on a surface abutting said first mount block, such that the ground layer is in contact with the inner end surface of the first mount block, and said first circuit board has a first image pickup element disposed on said surface and arranged on an optical axis of said first lens unit, and
• wherein the heat generated from said first image pickup element is radiated from said first mount block and said camera mounting frame through said ground layer.