Patent ID: 11886102
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. An illumination system, configured to provide an illumination beam and comprising a first excitation light source, a wavelength conversion element, and a controller, wherein
the first excitation light source is configured to provide a first excitation beam;
the wavelength conversion element is located on a transmission path of the first excitation beam and comprises a plurality of wavelength conversion regions and a plurality of non-wavelength conversion regions alternately arranged in a circumferential direction; and
the controller controls whether the first excitation light source emits the first excitation beam, wherein
during a first time interval, the controller turns off the first excitation light source; and
during a second time interval, the controller controls the first excitation light source to emit the first excitation beam, and the first excitation beam is transmitted to one of the plurality of wavelength conversion regions to form a converted beam, wherein the illumination beam comprises the converted beam,
wherein the wavelength conversion element further comprises a rotary disk, and the rotary disk comprises a body portion and a plurality of extension portions extending outward from the body portion and separated from each other in the circumferential direction, the plurality of wavelength conversion regions are respectively located on the plurality of extension portions, and each of the non-wavelength conversion regions is located between two of the extension portions.