PROJECTION OPTICAL SYSTEM AND SEE-THROUGH DISPLAY DEVICE INCLUDING THE SAME

A projection optical system includes a base, a mirror provided on the base, and a pair of first actuators facing each other along a first direction between the base and the mirror, wherein each of the pair of first actuators includes a first electroactive polymer film having a size that varies accor...

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Bibliographic Details
Main Authors KOH JE SUNG, LEE DOO HOE, KIM CHANG HWAN, LEE, HONG SEOK, SHIN, BONG SU
Format Patent
LanguageEnglish
Korean
Published 07.03.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:A projection optical system includes a base, a mirror provided on the base, and a pair of first actuators facing each other along a first direction between the base and the mirror, wherein each of the pair of first actuators includes a first electroactive polymer film having a size that varies according to an applied voltage, and an inclination of the mirror is adjusted according to the change in the size of the first electroactive polymer film. Therefore, the present invention can provide the projection optical system having a large area and a high driving speed. 투사 광학계는 베이스, 베이스 상에 제공되는 미러, 및 베이스와 미러 사이에서 제1 방향을 따라 서로 마주하는 한 쌍의 제1 액추에이터들을 포함하되, 한 쌍의 제1 액추에이터들의 각각은, 인가되는 전압에 따라 변하는 크기를 갖는 제1 전기 활성 고분자 막을 포함하고, 제1 전기 활성 고분자 막의 크기 변화에 따라 미러의 기울기가 조절된다.
Bibliography:Application Number: KR20210115028