Title:
LENS HEAT DISSIPATION MECHANISM AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/208826
Kind Code:
A1
Abstract:
A lens heat dissipation mechanism (100) and a projection device (1000). The lens heat dissipation mechanism (100) comprises a shell (5) and a first heat dissipation member (10). The first heat dissipation member (10) is provided in the shell (5), penetrates through the shell (5), and is connected to a lens (1) located outside the shell (5). The first heat dissipation member receives heat conducted by the lens (1) and can move with respect to the shell (5) along with movement of the lens (1). The problem of heat dissipation of a rear lens group (3) during focusing of the lens (1) is solved.
Inventors:
LIU PENGCHENG (CN)
XIE JITAO (CN)
ZHANG XIANGXIONG (CN)
CHEN YONGZHUANG (CN)
GUO ZUQIANG (CN)
HU FEI (CN)
XIE JITAO (CN)
ZHANG XIANGXIONG (CN)
CHEN YONGZHUANG (CN)
GUO ZUQIANG (CN)
HU FEI (CN)
Application Number:
PCT/CN2021/086416
Publication Date:
October 21, 2021
Filing Date:
April 12, 2021
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/16; G02B7/02
Foreign References:
| CN212083880U | 2020-12-04 | |||
| CN110618572A | 2019-12-27 | |||
| CN108681194A | 2018-10-19 | |||
| CN108803208A | 2018-11-13 | |||
| CN108873579A | 2018-11-23 | |||
| CN108828883A | 2018-11-16 | |||
| JP2016001270A | 2016-01-07 |
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