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Patent Searching and Data


Title:
FLUORESCENT COLOUR WHEEL EXCITATION DEVICE AND PROJECTION MODULE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/085383
Kind Code:
A1
Abstract:
Disclosed are a fluorescent colour wheel excitation device (100) and a projection module, comprising: a fluorescent colour wheel (10), a first drive device (20), a moving rod (30), a second drive device (40), a pedestal (50) and an excitation light source (60), wherein the fluorescent colour wheel (10) comprises a colour wheel base (11) and a fluorescent powder layer (12) coating the surface of the colour wheel base; the colour wheel base (11) and an output shaft of the first drive device (20) are connected, one end of the moving rod (30) is connected to the first drive device (20), the other end of the moving rod (30) is connected to an output shaft of the second drive device (40), and the second drive device (40) is mounted on the pedestal (50). Taking the rotating fluorescent colour wheel (10) as a reference, the excitation light source (60) irradiates the rotating fluorescent colour wheel (10) to form a light spot trajectory on the surface of the fluorescent powder layer (12), and by means of the second drive device (40) the fluorescent colour wheel (10) is enabled to move in translation, thus changing the light spot trajectory. The above-mentioned method can make the path of the light spot trajectory longer, such that the fluorescent powder layer on the surface of the fluorescent colour wheel is fully utilised, increasing the service life of the fluorescent colour wheel.

Inventors:
YEUNG STEVE (CN)
GAO ZHIQIANG (CN)
YEUNG TAK (CN)
LIN QINGYUN (CN)
Application Number:
PCT/CN2018/080695
Publication Date:
May 09, 2019
Filing Date:
March 27, 2018
Export Citation:
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Assignee:
IVIEW DISPLAYS SHENZHEN CO LTD (CN)
International Classes:
G03B21/20; G03B21/14
Domestic Patent References:
WO2017154048A12017-09-14
Foreign References:
CN107632488A2018-01-26
CN102809881A2012-12-05
CN102661576A2012-09-12
CN103869589A2014-06-18
CN102636947A2012-08-15
CN105045025A2015-11-11
CN103076712A2013-05-01
CN103309138A2013-09-18
US20160077326A12016-03-17
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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