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MINIATURE PROJECTION LIGHT ENGINE, POLARIZATION MULTIPLEXING DEVICE, AND METHOD FOR IMPROVING LIGHT ENERGY UTILIZATION RATE
MINIATURE PROJECTION LIGHT ENGINE, POLARIZATION MULTIPLEXING DEVICE, AND METHOD FOR IMPROVING LIGHT ENERGY UTILIZATION RATE
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机译：微型投影光引擎，极化复合装置以及提高光能利用率的方法
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摘要
A miniature projection light engine, a polarization multiplexing device (10), and a method for improving a light energy utilization rate. The polarization multiplexing device (10) is used to convert non-polarized light into polarized light having the same polarization state, and comprises a set of polarization multiplexing units (11). All of the polarization multiplexing units (11) are arranged in an end-to-end fashion, wherein each of the polarization multiplexing units (11) has an incident surface (1101) and an emergent surface (1102) disposed opposite to the incident surface (1101), and comprises an optical converter element (113), an optical splitter assembly (111), and an optical reflector assembly (112). The optical converter element (113) converts first polarized light (201) into second polarized light (202). The optical splitter assesmbly (111) is located on one side of the optical converter element (113), and splits non-polarized light incident on the incident surface (1101) into the second polarized light (202), emitted from the emergent surface (1102), and the first polarized light (201) directed toward the optical converter element (113). The reflector assembly (112) is located on the other side of the optical converter element (113), and reflects the second polarized light (202) converted by the optical converter element (113), such that the second polarized light (202) is emitted from the emergent surface (1102).
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