Mirror support and mirror support mechanism

A mirror support installed between a mirror and a support structure and in an optical axis direction of the mirror to support the mirror, the mirror support comprising:

• a first pad fixed to the mirror;
• a second pad fixed to the mirror at a position different from the first pad;
• an arm laid between the first pad and the second pad while separated from the mirror;
• a first-pad elastic body formed between the arm and the first pad;
• a second-pad elastic body formed between the arm and the second pad;
• a first rod in which one end is connected to the arm at a position closer to a side of the first pad with respect to the second pad while the other end stretched and inclined onto the side of the first pad from the position connected is connected to the support structure;
• a first-rod elastic body that is an elastic body constituting the first rod;
• a second rod in which one end is connected to the arm at a position closer to a side of the second pad with respect to the first pad while the other end stretched and inclined onto the side of the second pad from the position connected is connected to the support structure;
• and
• a second-rod elastic body that is an elastic body constituting the second rod,
• wherein inclination angles of the first rod and the second rod are an angle at which a point where a first virtual line obtained by stretching the first rod in a direction of the mirror and a second virtual line obtained by stretching the second rod in the direction of the mirror intersect with each other exists on a virtual plane that is orthogonal to the optical axis of the mirror and in which a center of gravity of the mirror is located.