Color wheel module and projection device

A projection device, comprising:

• an illumination module, a light valve, and a projection lens;
• wherein,
• the illumination module comprises a light source device, a light-guiding element, and a color wheel module for providing an illumination beam, the light source device configured to provide an excitation beam, the color wheel module disposed on a transmission path of the excitation beam, the color wheel module located between the light source device and the light valve, and the color wheel module comprising a driving assembly, a substrate, a fastening element, a first glue layer, a second glue layer, a third glue layer, at least one wavelength conversion layer, and a plurality of filters;
• wherein
• the plurality of filters are disposed around a rotating axis in a manner perpendicular to the rotating axis of the driving assembly;
• the fastening element is attached to the plurality of filters along the rotating axis;
• the substrate is connected to the plurality of filters, and the plurality of filters are fixed between the fastening element and the driving assembly;
• the driving assembly drives the substrate and the plurality of filters to rotate around the rotating axis as a central axis;
• a shape of the substrate is a hollow ring, the substrate comprises an outer periphery surrounding the central axis, and the substrate has a light conversion region disposed on the outer periphery, wherein the outer periphery extends in an extension direction, the extension direction and a radial direction of the substrate forms an included angle, and the outer periphery has a width parallel to the extension direction;
• the first glue layer is disposed between the fastening element and the plurality of filters, wherein the fastening element is connected to the plurality of filters through the first glue layer;
• the second glue layer is disposed between the driving assembly and the plurality of filters, wherein the driving assembly is connected to the plurality of filters through the second glue layer;
• the third glue layer is disposed between a surface of the substrate and the plurality of filters, wherein the surface of the substrate is parallel to the radial direction, and the plurality of filters are connected to the surface of the substrate through the third glue layer;
• and
• the at least one wavelength conversion layer is disposed in the light conversion region of the substrate;
• wherein the excitation beam is incident on the light conversion region of the substrate and converted into a conversion beam, and the conversion beam is guided by the light-guiding element to penetrate the corresponding one of the filters along a direction parallel to the central axis, the illumination beam comprising the conversion beam;
• 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 projection device.