Patent ID: 11899351
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. An illumination system, configured to provide an illumination light and comprising a first laser light source, a wavelength conversion module, a filter module, and a microlens array; wherein
the first laser light source is configured to provide a first laser light;
the wavelength conversion module is located on a transmission path of the first laser light, wherein the wavelength conversion module comprises at least one wavelength conversion region, and the wavelength conversion module is configured to rotate, such that the at least one wavelength conversion region is cut into the transmission path of the first laser light;
the filter module is located on the transmission path of the first laser light, wherein the filter module has a first surface and a second surface opposite to each other, where the first surface faces the wavelength conversion module, the filter module is disposed with a transmissive region and a splitting region on the first surface, and a diffusing region and a filter optical region on the second surface, where the diffusing region and the transmissive region are opposite to each other, and the splitting region and the filter optical region are opposite to each other, and the filter module is configured to rotate, such that the transmissive region and the splitting region are cut into the transmission path of the first laser light in turn, wherein when the transmissive region is cut into the transmission path of the first laser light, the first laser light forms a first color light after passing through the transmissive region and the diffusing region of the filter module, and when the splitting region is cut into the transmission path of the first laser light, the first laser light forms at least one second color light by the splitting region of the filter module, the at least one wavelength conversion region of the wavelength conversion module, and the filter optical region of the filter module; and
the microlens array is located on transmission paths of the first color light and the at least one second color light, and is configured to homogenize the first color light and the at least one second color light, wherein the first color light and the at least one second color light form the illumination light in different time intervals after passing through the microlens array.