Optical Imaging System

According to the present invention, an optical imaging system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens which are sequentially arranged from an object side. The second lens has negative refractive power, and the fifth lens has positive refract...

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Bibliographic Details
Main Authors JO YONG JOO, PARK JU SUNG, SON JU HWA, LEE JONG GI
Format Patent
LanguageEnglish
Korean
Published 17.03.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:According to the present invention, an optical imaging system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens which are sequentially arranged from an object side. The second lens has negative refractive power, and the fifth lens has positive refractive power. Moreover, the present invention satisfies a conditional expression that TTL/f is less than 1.0. Herein, the TTL is a distance from the object side to an upper surface of the first lens in the conditional expression, and the f is the total focal distance of the optical imaging system. 본 발명의 촬상 광학계는 물체 측으로부터 순차적으로 배치되는 제1렌즈, 제2렌즈, 제3렌즈, 제4렌즈, 제5렌즈, 및 제6렌즈를 포함하고, 상기 제2렌즈는 부의 굴절력을 가지며, 상기 제5렌즈는 정의 굴절력을 가지며, 조건식 TTL/f < 1.0을 만족한다. 여기서, 조건식에서 TTL은 제1렌즈의 물체 측면으로부터 상면까지의 거리이고, f는 촬상 광학계의 전체 초점거리이다.
Bibliography:Application Number: KR20230029400