Wavelength conversion module

A wavelength conversion module for being disposed on a light path of light emitted from a projector, the wavelength conversion module comprising:

• a wheel having a first surface and a second surface facing away from the first surface, the first surface including a wavelength conversion area, a heat dissipation area and a complementary dissipation area, the wavelength conversion area surrounding the heat dissipation area, and the complementary dissipation area surrounding the wavelength conversion area, wherein the heat dissipation area includes a plurality of through holes penetrating through the wheel and connecting the first surface and the second surface;
• and
• a wavelength conversion layer disposed on the wavelength conversion area of the first surface for converting the wavelength of the light.

A wavelength conversion module for being disposed on a light path of light emitted from a projector, the wavelength conversion module comprising:

• a driving module;
• and
• a wheel having an axial hole, a heat dissipation area and a wavelength conversion area, the axial hole being connected to the driving module, the heat dissipation area surrounding the axial hole, the wavelength conversion area surrounding the heat dissipation area, and the light being projected onto the wavelength conversion area, wherein the heat dissipation area includes a plurality of through holes penetrating through the wheel, the plurality of through holes having a plurality of first through holes and a plurality of second through holes, the plurality of first through holes being arranged circularly on the wheel around the axial hole, and each of the plurality of second through holes being arranged between every two adjacent first through holes and closer to the wavelength conversion area than the two adjacent first through holes.