Title:
LIGHT SOURCE SYSTEM, LIGHT SOURCE STABILITY MONITORING METHOD, AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/166121
Kind Code:
A1
Abstract:
Disclosed are a light source system, a light source stability monitoring method, and a projection device. The light source system comprises a light source (101) for emitting exciting light; a colour wheel assembly comprising a light transmission portion and a non-light-transmission portion, which are located on an excitation light propagation path in turn; and a sensor (107) located on a path of propagation of the excitation light via the light transmission portion, and used for detecting beams transmitted by means of the light transmission portion, wherein the amplitude of a beam brightness signal is detected by means of the sensor (107) to determine the stability of the fluorescent brightness. The projection device is low in cost, has high efficiency and has good user experience.
Inventors:
DAI DAYAN (CN)
DU PENG (CN)
LI YI (CN)
DU PENG (CN)
LI YI (CN)
Application Number:
PCT/CN2017/091682
Publication Date:
September 20, 2018
Filing Date:
July 04, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/20; G01M11/02; G02B26/00
Foreign References:
| CN104880890A | 2015-09-02 | |||
| CN105351887A | 2016-02-24 | |||
| CN204214544U | 2015-03-18 | |||
| CN102749182A | 2012-10-24 | |||
| CN104216208A | 2014-12-17 | |||
| US20160139401A1 | 2016-05-19 |
Download PDF:
Previous Patent: LIGHT SOURCE APPARATUS AND PROJECTION SYSTEM
Next Patent: BATTERY FAILURE PREVENTING CUT-OFF SYSTEM APPLIED TO ELECTRIC BUS
Next Patent: BATTERY FAILURE PREVENTING CUT-OFF SYSTEM APPLIED TO ELECTRIC BUS