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

Claim 0:
1. 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 second time interval further comprises a color time interval, a previous idle time interval, and a post idle time interval, the previous idle time interval is before the color time interval, and the post idle time interval is after the color time interval, wherein
during the color 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;
during the previous idle time interval, the controller turns off the first excitation light source, and the previous idle time interval corresponds to a boundary between one of the plurality of wavelength conversion regions and one of the non-wavelength conversion regions adjacent to the one of the plurality of wavelength conversion regions; and
during the post idle time interval, the controller turns off the first excitation light source, and the post idle time interval corresponds to a boundary between the one of the plurality of wavelength conversion regions and the other one of the non-wavelength conversion regions adjacent to the one of the plurality of wavelength conversion regions.