Lens unit and image pickup apparatus

An image pickup apparatus, comprising:

• a mounting cradle;
• an image pickup device held to said mounting cradle;
• a cylindrical portion in an optical axis direction fixed to said mounting cradle;
• a lens frame held to said cylindrical portion to be capable of moving to the optical axis direction;
• a lens fixed to said lens frame;
• an adjusting shaft provided to an outside of said cylindrical portion in parallel with the optical axis direction;
• a position standard member that is provided to said adjusting shaft and whose position with respect to said mounting cradle is fixed;
• a cam member that is fixed to said lens frame and is engaged with said adjusting shaft;
• and
• a switching member provided between the position standard member and the cam member so as to be capable of rotationally moving about said adjusting shaft,
• wherein a position of said lens frame in the optical axis direction is switched by the rotational movement of said switching member.

A lens unit, comprising:

• a mounting cradle;
• a cylindrical portion in an optical axis direction fixed to said mounting cradle;
• a lens frame held to said cylindrical portion to be capable of moving to the optical axis direction;
• a lens fixed to said lens frame;
• an adjusting shaft provided to an outside of said cylindrical portion in parallel with the optical axis direction;
• a position standard member that is provided to said adjusting shaft and whose position with respect to said mounting cradle is fixed;
• a cam member that is fixed to said lens frame and is engaged with said adjusting shaft;
• a switching member provided between the position standard member and the cam member so as to be capable of rotationally moving about said adjusting shaft;
• and
• a spring which presses said cam member against said switching member.