Patent ID: 11899350
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G  Y | IPC G

Claim 13:
14. A projector, comprising an illumination module, a light valve, and a projection lens, wherein:
the illumination module is configured to provide an illumination beam, and the illumination module comprises a light source device and a wavelength conversion module, wherein:
the light source device is configured to provide an exciting beam;
the wavelength conversion module is disposed on a transmission path of the exciting beam to convert the exciting beam to a conversion beam, the illumination beam comprises at least a portion of the conversion beam emitted from the wavelength conversion module, and the wavelength conversion module comprises a wavelength conversion wheel, a driver, a first heat insulation layer and a second heat insulation layer, wherein:
the wavelength conversion wheel comprises a rotating plate, the rotating plate has a first side and a second side opposite to each other and comprises an annular recess hole recessed from the second side toward the first side; and
the driver is connected to the first side of the rotating plate, and the driver drives the rotating plate to rotate around a rotation shaft of the driver as an axis,
wherein the rotating plate comprises a heat insulation region and a heat dissipation region, wherein the heat insulation region and the heat dissipation region do not overlap each other;
wherein the heat insulation region comprises a first heat insulation region and a second heat insulation region, the first heat insulation region is located at the first side of the rotating plate and corresponds to a connection position of the driver, and the second heat insulation region is a position of the annular recess hole;
the first heat insulation layer is located at the first heat insulation region of the rotating plate and disposed between the rotating plate and the driver; and
the second heat insulation layer is located at the second heat insulation region of the rotating plate;
wherein the first heat insulation layer and the second heat insulation layer are respectively a surface treatment layer, and the surface treatment layer comprises a ceramization surface layer, a micro-arc oxidation surface layer, an oxide layer, or an inorganic salt layer, or
wherein the first heat insulation layer and the second heat insulation layer are respectively a coated ceramic material layer, a sprayed ceramic material layer, a printed ceramic material layer, or a printed heat insulation plastic material layer;

the light valve is disposed on a transmission path of the illumination beam to convert the illumination beam into an image beam; and
the projection lens is disposed on a transmission path of the image beam to project the image beam out of the projector.