Title:
COLOR WHEEL, AND LIGHT SOURCE SYSTEM AND PROJECTION SYSTEM EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2019/019517
Kind Code:
A1
Abstract:
A color wheel, and light source system and projection system employing same. The color wheel (2) comprises a front substrate (21) and a back substrate (22) enabling light transmission, and a beam splitter film (25), a first low-refractive-index layer (28), a fluorescent film (26), a second low-refractive-index layer (29), and a light filter film (27) sequentially arranged between the front substrate (21) and the back substrate (22). The beam splitter film (25) enables transmission of a first light and reflection of a second light, and comprises at least one first color light region absorbing the first light to generate the second light. The light filter film (27) comprises at least one first light transmission region corresponding to the first color light region, and the first light transmission region allows transmission of the second light or a third light split from the second light, and reflection of other lights. The present invention enables a high utilization rate of optical energy.
Inventors:
DAI DAYAN (CN)
LI YI (CN)
LI YI (CN)
Application Number:
PCT/CN2017/114719
Publication Date:
January 31, 2019
Filing Date:
December 06, 2017
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G02B26/00; G02B27/10; G03B21/20
Foreign References:
| CN202040748U | 2011-11-16 | |||
| CN202275207U | 2012-06-13 | |||
| CN104765237A | 2015-07-08 | |||
| CN101539270A | 2009-09-23 | |||
| CN105659160A | 2016-06-08 | |||
| JP2012209228A | 2012-10-25 | |||
| CN207164363U | 2018-03-30 |
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