Optical module and projector

A projector, comprising an illumination system, a light valve, a projection lens, and an optical module, wherein

• the illumination system is configured to emit an illumination light beam;
• the light valve is located on a transmission path of the illumination light beam and is configured to convert the illumination light beam into an image light beam;
• the projection lens is located on a transmission path of the image light beam and is configured to project the image light beam;
• and
• the optical module is disposed between the light valve and the projection lens and comprises a base, a first frame body, an optical element, and at least one driving assembly, wherein
• the first frame body is disposed in the base;
• the optical element is disposed in the first frame body;
• and
• the at least one driving assembly is disposed between the base and the first frame body, the first frame body is configured to swing relative to the base through a magnetic force generated by the at least one driving assembly, and each of the at least one driving assembly comprises a coil and a magnetic structure, wherein the magnetic structure is separated from the coil, and the magnetic structure comprises a magnetic permeable plate, a separation medium, and a magnet element, wherein
• the magnetic permeable plate comprises a long side and a short side;
• the separation medium is located on one side of the magnetic permeable plate facing the coil;
• and
• the magnet element is disposed on the one side of the magnetic permeable plate facing the coil and is separated by the separation medium.