US 2026/0147262 A1Published application

Projection apparatus

AssigneeCoretronic Corporation

InventorsYu-Hsiang Deng, Jui Chang

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Abstract

A projection apparatus including a case, a light source module, a first dichroic mirror, and a wavelength conversion wheel is provided. The first dichroic mirror is disposed on a transmission path of a first color light provided by the light source module. The wavelength conversion wheel is disposed on a transmission path of the first color light from the first dichroic mirror, and includes a substrate. A surface of the substrate is parallel to a bottom surface of the case and is provided with a wavelength conversion area and a reflection area. The wavelength conversion area converts the first color light into a second color light and reflects the second color light to the first dichroic mirror within a first time interval. The reflection area reflects the first color light back to the first dichroic mirror within a second time interval.

Claims16

Dependent claims

A projection apparatus, comprising:

a case;
an illumination system disposed in the case, the illumination system is configured to provide an illumination light, and the illumination system comprises a light source module and a wavelength conversion wheel,
wherein the light source module is configured to provide a first color light, and
the wavelength conversion wheel is disposed on a transmission path of the first color light, the wavelength conversion wheel comprises a substrate, a surface of the substrate is provided with a wavelength conversion area, and the wavelength conversion area is configured to convert the first color light into a second color light;
a light valve disposed on a transmission path of the illumination light and configured to convert the illumination light into an image beam;
and
a projection lens disposed on a transmission path of the image beam and configured to project the image beam out of the projection apparatus, wherein the surface of the substrate is parallel to a bottom surface of the case, and the bottom surface of the case is configured to support a weight of the illumination system.

4 more elements

Dependencies are inferred from the claim text.