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

Claim 11:
12. An illumination system for providing an illumination beam, comprising an exciting light source, a phosphor wheel, a first lens, a first reflector, a second lens 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 first reflector comprises a light splitting region and a reflecting region, wherein
the excitation beam from the exciting light source passes through the light splitting region and then is transmitted to the first lens;
in the first time sequence, the excitation beam passing through the first lens is reflected to the first lens by the reflecting region; and
in the second time sequence, the conversion beam passing through the first lens is reflected to the first lens by the light splitting region or the reflecting region,

wherein the second lens is disposed between the first lens and the phosphor wheel, wherein an optical axis of the first lens and an optical axis of the second lens are not parallel to each other.