Pixel shifting device and projector

A pixel shifting device comprising:

• an optical member;
• a first frame which is configured to hold the optical member, and which oscillates around a first oscillation axis;
• a second frame which is disposed on a periphery of the first frame, which is coupled to the first frame, and which oscillates around a second oscillation axis perpendicular to the first oscillation axis;
• a base which is disposed on a periphery of the second frame, and which is coupled to the second frame;
• a pair of first oscillation shaft formation parts which are disposed at both sides of the first frame in a direction along the first oscillation axis, and which are configured to couple the first frame and the second frame to each other;
• a first actuator configured to oscillate the first frame with respect to the second frame between the first frame and the second frame;
• and
• a second actuator configured to oscillate the second frame with respect to the base between the second frame and the base, wherein
• the second frame and the base are provided with an actuator holding part which extends toward one side in an axial direction along the second oscillation axis, and which is configured to hold the second actuator, and
• the pair of first oscillation shaft formation parts have a pair of coupling shafts which are located on the first oscillation axis, and which are configured to couple the first frame and the second frame to each other, and a pair of beams which extend on a surface of the second frame respectively from the pair of coupling shafts in a direction along the second oscillation axis, wherein
• the pair of beams have an uprise wall part which rises along a normal direction of the surface of the second frame, and which extends in a direction along the second oscillation axis,
• the uprise wall part is disposed in an end portion at the base side in each of the pair of beams, and
• in a plan view in a normal direction of the surface of the second frame, both end portions in the direction along the second oscillation axis in each of the pair of beams have oblique sides with which the length in the direction along the second oscillation axis increases in a direction from the first frame side toward the base side.