Patent ID: 11874439
Assignee: ZHEJIANG SUNNY OPTICAL CO., LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging lens, sequentially comprising from an object side to an image side along an optical axis:
a first lens having a negative focal power, and provided with an object-side surface, the object-side surface is concave surface;
a second lens having a focal power;
a third lens having a focal power;
a fourth lens having a positive focal power;
a fifth lens having a negative focal power, and provided with an image-side surface, the image-side surface is concave surface;
a sixth lens having a positive focal power; and
a seventh lens having a focal power,
wherein the object-side surface of the first lens to an image-side surface of the seventh lens comprise at least one aspherical surface; and
a maximum Field of View (FOV) of the optical imaging lens meets 105°≤FOV≤135°;
a central thickness CT1 of the first lens on the optical axis, a central thickness CT2 of the second lens on the optical axis, and a central thickness CT3 of the third lens on the optical axis meet 0.6<CT1/(CT2+CT3)<1.1.