LIGHT SOURCE AND PROJECTOR

WIPO Patent Application WO/2018/010487

A1

A light source, and a projector using said light source, comprising: a light emitting device (10), a light splitting device (20), a wavelength switching device (30), a relay device (40) and a light combining device (50); monochromatic light emitted by the light emitting device (10), after entering the light splitting device (20), is split either in series or simultaneously into a first light output along a first light channel and a second light output along a second light channel; the first light enters the first light channel and shines onto the wavelength switching device (30), and is excited to generate a third light; the second light enters the relay device (40), and the second light, and the third light finally enter the output light receiving device by means of the light combining device (50) and are distributed to a projector having an SLM to generate a projection image. The light source converts monochromatic light into three base colors of light, providing a light source required by a projector, decreasing the loss of intensity in traditional solutions caused by splitting white light into three base colors of light, simplifying light source structure and increasing luminous efficiency.

HU FEI (CN)
HOU HAIXIONG (CN)
LI YI (CN)

PCT/CN2017/084823

January 18, 2018

May 18, 2017

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APPOTRONICS CHINA CORP (CN)

G03B21/20; G02B26/00; G02B27/10

WO2015104801A1

2015-07-16

CN205910482U	2017-01-25
CN103424971A	2013-12-04
CN104345530A	2015-02-11
CN103376634A	2013-10-30
CN105652572A	2016-06-08

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