Rotational operation device and electronic apparatus using this

An electronic apparatus comprising:

• a rotational operation device comprising:
• a rotational operation member that is rotatable around a rotation axis;
• a detection unit that detects rotation of the rotational operation member;
• a setting unit that sets one operation mode from among a plurality of predetermined operation modes in response to a detection output of the detection unit;
• and
• a click force application mechanism that applies click force to the rotational operation member according to a rotational operation of the rotational operation member;
• and
• a controller that controls components of the electronic apparatus according to the operation mode set by the rotational operation device,
• wherein the click force application mechanism comprises a regulation member on which a concave-convex section is formed along an outer circumferential surface to regulate rotation of the rotational operation member, a click member that contacts the concave-convex section, and an energization unit that energizes the click member to the outer circumferential surface of the regulation member, and
• wherein the setting unit switches the operation mode according to a rotational operation of the rotational operation member before a position where the click member contacts a mountain part of the outer circumferential surface of the regulation member during a rotational operation of the rotational operation member, in a case where the rotational operation member is rotated in a first direction.