Patent ID: 11899352
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A projector, comprising: a light source, a light valve, a projection lens, and a wavelength conversion element; wherein
the light source is adapted to provide an illumination beam;
the light valve is adapted to receive the illumination beam from the light source and convert the illumination beam into an image beam;
the projection lens is adapted to receive the image beam from the light valve and project the image beam out of the projector; and
the wavelength conversion element is configured in a transmission path of the illumination beam and comprises: a turnable disc, a hub, a wavelength conversion layer, and a porous structure; wherein
the turnable disc has a wavelength conversion region and a non-wavelength conversion region and comprises a central axis;
the hub is arranged on the central axis, and a material of the hub comprises foamed metal;
the wavelength conversion layer is disposed in the wavelength conversion region of the turnable disc; and
the porous structure is disposed in the non-wavelength conversion region of the turnable disc, and a material of the porous structure comprises the foamed metal.