Title:
LIGHT SOURCE SYSTEM AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/017275
Kind Code:
A1
Abstract:
Disclosed are an optical system and a projection system. The light source system comprises a first light source, a second light source, a light combining assembly, a compound eye lens set and a collection lens, wherein the first light source is configured to emit a first light beam; the second light source is configured to emit a second light beam, and the optical extension of the first light beam is larger than that of the second light beam; the light combining assembly is configured to combine the first light beam and the second light beam; the compound eye lens set comprises a first compound eye lens and a second compound eye lens, and is configured to homogenize the combined first light beam and second light beam; and the collection lens is located on a side of the compound eye lenses that are far away from the light combining assembly, and is configured to focus the first light beam and the second light beam that are homogenized, wherein the second compound eye lens is located between the first compound eye lens and the collection lens, and is arranged to deviate from the focal point of the collection lens. The present application improves the uniformity of the color and brightness and the safety of the light source system by means of arranging the second compound eye lens to deviate from the focal point of the collection lens.
Inventors:
CHEN CHEN (CN)
YU XIN (CN)
HU FEI (CN)
LI YI (CN)
YU XIN (CN)
HU FEI (CN)
LI YI (CN)
Application Number:
PCT/CN2021/106743
Publication Date:
January 27, 2022
Filing Date:
July 16, 2021
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
H04N9/31; G03B21/20
Foreign References:
| CN205992115U | 2017-03-01 | |||
| CN206610072U | 2017-11-03 | |||
| CN103969933A | 2014-08-06 | |||
| CN106444254A | 2017-02-22 | |||
| US20180275495A1 | 2018-09-27 | |||
| CN110888290A | 2020-03-17 | |||
| US20200083408A1 | 2020-03-12 | |||
| CN105278226A | 2016-01-27 | |||
| CN105204279A | 2015-12-30 | |||
| CN103279005A | 2013-09-04 |
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