Patent ID: 11899353
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. An illumination system for providing an illumination beam, comprising an exciting light source, a phosphor wheel, a first lens, a first reflector, a color filter wheel and a light uniforming element, wherein:
the exciting light source is configured to emit an excitation beam, and the excitation beam passes through the first lens and then is transmitted to the phosphor wheel;
in a first time sequence, the phosphor wheel is configured to reflect the excitation beam to the first reflector, the first reflector reflects the excitation beam to the first lens and the excitation beam passes through the first lens and then transmits to the light uniforming element; and
in a second time sequence, the phosphor wheel is configured to convert the excitation beam to a conversion beam, the conversion beam emitted from the phosphor wheel passes the first lens and then transmits to the first reflector, the first reflector reflects the conversion beam to the first lens, the conversion beam passes through the first lens and then transmits to the light uniforming element,
wherein the excitation beam from the phosphor wheel and the conversion beam from the phosphor wheel, in the first time sequence and in the second time sequence, are respectively transmitted to the light uniforming element to generate the illumination beam,
wherein the color filter wheel is disposed between the first lens and the light uniforming element, wherein the excitation beam and the conversion beam passing through the first lens pass through the color filter wheel and then are transmitted to the light uniforming element,
wherein along an optical axis direction of the first lens, the phosphor wheel partially overlaps the color filter wheel.