Optical module and projector with same

A projector, comprising:

• a light source, adapted to provide an illumination beam;
• a light valve, located on a transmission path of the illumination beam, adapted to transform the illumination beam into an image beam;
• a projecting lens, located on a transmission path of the image beam, adapted to project the image beam;
• and
• an optical module, disposed between the light valve and the projecting lens, comprising:
• a base;
• an outer frame, pivoted to the base;
• an inner frame, disposed in the outer frame;
• a transparent element, disposed in the inner frame;
• two first coil portions, respectively disposed between the base and the outer frame;
• two first magnetic portions, respectively disposed between the base and the outer frame, and each of the two first magnetic portions is spaced with the corresponding first coil portion,
• two second coil portions, respectively disposed between the inner frame and the outer frame;
• and
• two second magnetic portions, respectively disposed between the inner frame and the outer frame, wherein each of the two second magnetic portions is spaced with the corresponding second coil portion,
• wherein when a power supply is adapted to provide a current to the two first coil portions, each of the two first coil portions is magnetized and forms an electromagnetic force with magnetic field of the corresponding first magnetic portion, and the electromagnetic forces are adapted to drive the transparent element pivotally swinging relative to the base.