Imaging Lens System

An imaging optical system of the present invention includes: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; an...

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Bibliographic Details
Main Author JUNG, PHIL HO
Format Patent
LanguageEnglish
Korean
Published 06.03.2018
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An imaging optical system of the present invention includes: a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; and a sixth lens having positive refractive power, wherein F No. is 2.0 or less and satisfies the following conditional expression. The conditional expression satisfies OAL / (Img HT) < 1.50, wherein OAL is the distance from an object side surface of the first lens to an upper surface, and Img HT is 1/2 of the diagonal length of the upper surface. 본 발명의 촬상 광학계는 정의 굴절력을 갖는 제1렌즈; 부의 굴절력을 갖는 제2렌즈; 정의 굴절력을 갖는 제3렌즈; 정의 굴절력을 갖는 제4렌즈; 부의 굴절력을 갖는 제5렌즈; 및 정의 굴절력을 갖는 제6렌즈;를 포함하고, F No.가 2.0 이하이고, 하기 조건식을 만족한다. [조건식] OAL / (Img HT) < 1.50 (상기 조건식에서 OAL은 상기 제1렌즈의 물체 측면으로부터 상면까지의 거리이고, Img HT는 상면의 대각길이의 1/2이다)
Bibliography:Application Number: KR20160107821