Illumination system, projection apparatus and illumination switch method

摘要

An illumination system includes an optical switch component, a wavelength conversion element, a first light splitter and a light combining element. The optical switch component switches between a first state and a second state. The illumination system generates first and second waveband lights on the first and second states respectively. The first light splitter reflects a first light generated by a first light source to the wavelength conversion element to generate a second light. The composite light splitter includes a second light splitter to transmit a third light generated by a second light source to the optical switch component. In the first state, the optical switch component reflects the second light to the second light splitter to generate the first waveband light. On the second state, the second light and the third light penetrate the optical switch component to a reflection component to generate the second waveband light.

主权项

1. An illumination system, comprising:
an optical switch component, utilized to switch between a first state and a second state different from the first state, wherein the illumination system generates a first waveband light in the first state and generates a second waveband light different from the first waveband light in the second state to support projection of 3D images; a first light source, utilized to emit a first light; a first light splitter, utilized to reflect the first light to wavelength conversion element to generate a second light different from the first light and transmit the second light to the optical switch component; and a composite light splitter, comprising a second light splitter to transmit a third light emitted by a second light source to the optical switch component, wherein in the first state the optical switch component reflects the second light to a first light filter of the second light splitter for generating the first waveband light, and in the second state the second light and the third light penetrate the optical switch component to a reflection component respectively and penetrate the first light splitter and the second light splitter respectively for generating the second waveband light.