Patent ID: 11953817
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A projection device, comprising: an illumination module, a light valve, and a projection lens; wherein,
the illumination module comprises a light source device and a wheel, the illumination module is configured to provide an illumination beam, wherein the wheel is disposed on a transmission path of an excitation beam provided by the light source device, and the wheel comprises a substrate, a driving component, a clamping element, and a balance component; wherein
the driving component is connected to the substrate, and is configured to drive the substrate to rotate about an axis of the driving component as a central axis;
the clamping element is arranged on the substrate along the axis, and the clamping element comprises a plurality of protruding structures; and
the balance component comprises a balance substance and an adhesive, the balance substance is disposed on the plurality of protruding structures, and the plurality of protruding structures are located in a first region and a second region, the balance component is only located in at least part of the second region, the plurality of protruding structures located in the first region are exposed and not covered by the adhesive, and the adhesive covers the balance substance and the plurality of protruding structures located in the second region to fix the balance component on the clamping element;

the light valve is arranged on a transmission path of the illumination beam from the wheel to convert the illumination beam into an image beam; and
the projection lens is arranged on a transmission path of the image beam to project the image beam out of the projection device.