Title:
LENS CURVATURE VARIATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/006679
Kind Code:
A1
Abstract:
A lens curvature variation apparatus according to an embodiment comprises: a liquid lens comprising a common electrode and a plurality of individual electrodes; a lens driving unit which applies a voltage to the common electrode and the plurality of individual electrodes; a plurality of switching elements which are respectively connected to the plurality of individual electrodes; a plurality of sensor units which are respectively connected to the plurality of switching elements and sense the interface of the liquid lens that varies on the basis of the voltage; a MUX which is connected to the plurality of sensor units and sequentially outputs analog signals, in correspondence to the interface, which have been output respectively from the plurality of sensor units; an AD converter which converts the analog signals sequentially output from the MUX into digital signals and outputs the digital signals; and a control unit which controls the lens driving unit on the basis of the signals output from the AD converter.
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Inventors:
JUNG SUNG KI (KR)
MOON YOUNG SEOP (KR)
MOON YOUNG SEOP (KR)
Application Number:
PCT/KR2020/009050
Publication Date:
January 14, 2021
Filing Date:
July 09, 2020
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B3/14
Domestic Patent References:
| WO2018131925A1 | 2018-07-19 |
Foreign References:
| KR20190068277A | 2019-06-18 | |||
| KR20020037640A | 2002-05-22 | |||
| KR101821189B1 | 2018-01-23 | |||
| KR20180110882A | 2018-10-11 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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