Patent ID: 11947251

Abstract:
An illumination system provides an illumination beam and includes a red light source, a green light source, a blue light source, a first supplementary light source, a first X-shaped light-splitting assembly, a first light-splitting element, and a light-uniforming element. The red light source provides a red beam. The green light source provides a green beam. The blue light source provides a blue beam. The first supplementary light source provides a first supplementary beam. The first X-shaped light-splitting assembly guides the first supplementary beam and the blue beam to the first light-splitting element. The first light-splitting element guides the red beam, the green beam, the blue beam, and the first supplementary beam to the light-uniforming element. The first supplementary beam is a red supplementary beam or a blue supplementary beam, and the illumination system includes at least five light-emitting elements. A projection apparatus including the above illumination system is also provided.