An optical system according to an embodiment may comprise first to third lenses arranged along an optical axis in a direction from an object side to a sensor side, wherein the first lens has a meniscus shape convex toward the object side, and satisfies 1.7 ≤ nt_1 ≤ 2.3 and TTL ≤ 6mm. (Here, nt_1 denotes the refractive index of the first lens for light in the t-line wavelength band, and TTL denotes the distance on the optical axis from the object-side surface of the first lens to the upper surface of an image sensor.)

    Un système optique selon un mode de réalisation peut comprendre des première à troisième lentilles disposées le long d'un axe optique dans une direction allant d'un côté objet à un côté capteur, la première lentille ayant une forme de ménisque convexe vers le côté objet, et satisfait 1,7 ≤ nt_1 ≤ 2,3 et TTL ≤ 6mm. (Ici, nt_1 représente l'indice de réfraction de la première lentille pour la lumière dans la bande de longueur d'onde en ligne t, et TTL désigne la distance sur l'axe optique de la surface côté objet de la première lentille à la surface supérieure d'un capteur d'image.)

    실시예에 따른 광학계는 물체 측으로부터 센서 측 방향으로 광축을 따라 배치되는 제1 내지 제3 렌즈를 포함하고, 상기 제1 렌즈는 물체 측으로 볼록한 메니스커스 형상을 가지고, 1.7 ≤ nt_1 ≤ 2.3을 만족하고, TTL ≤ 6mm을 만족할 수 있다. (nt_1은 t-line 파장 대역의 광에 대한 상기 제1 렌즈의 굴절률이고, TTL은 상기 제1 렌즈의 물체 측 면에서 이미지 센서의 상면까지의 상기 광축에서의 거리이다.)


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    Title :

    OPTICAL SYSTEM AND CAMERA MODULE COMPRISING SAME


    Additional title:

    SYSTÈME OPTIQUE ET MODULE DE CAMÉRA LE COMPRENANT
    광학계 및 이를 포함하는 카메라 모듈


    Contributors:

    Publication date :

    2022-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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