US 12,253,743 B2
Optical imaging lens
Po-Nien Tsai, Pingtung County (TW)
Assigned to CALIN TECHNOLOGY CO., LTD., Taichung (TW)
Filed by Calin Technology Co., Ltd., Taichung (TW)
Filed on Sep. 15, 2021, as Appl. No. 17/475,629.
Claims priority of application No. 110130286 (TW), filed on Aug. 17, 2021.
Prior Publication US 2023/0064577 A1, Mar. 2, 2023
Int. Cl. G02B 9/64 (2006.01); G02B 13/00 (2006.01); G02B 13/06 (2006.01); G02B 27/00 (2006.01)
CPC G02B 9/64 (2013.01) [G02B 13/0045 (2013.01); G02B 13/06 (2013.01); G02B 27/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical imaging lens, in order from an object side to an image side along an optical axis, consisting of eight lenses with refractive power, comprising:
a first optical assembly having negative refractive power;
a second optical assembly having negative refractive power;
a third optical assembly having positive refractive power;
a first aperture;
a fourth optical assembly having positive refractive power;
a fifth optical assembly having positive refractive power;
a second aperture;
a sixth optical assembly having negative refractive power;
a seventh optical assembly having positive refractive power;
wherein one of the first optical assembly, the second optical assembly, the third optical assembly, the fourth optical assembly, the fifth optical assembly, the sixth optical assembly, and the seventh optical assembly comprises a compound lens formed by adhering two lenses, while the others are single lens, wherein the first optical assembly is a single lens that comprises a first lens; the second optical assembly is a single lens that comprises a second lens; the third optical assembly is a single lens that comprises a third lens; the fourth optical assembly is a single lens that comprises a fourth lens; the fifth optical assembly is a compound lens that comprises a fifth lens and a sixth lens, the fifth lens having negative refractive power and the sixth lens having positive refractive power; the sixth optical assembly is a single lens that comprises a seventh lens; the seventh optical assembly is a single lens that comprises an eighth lens;
wherein the optical imaging lens satisfies: −0.1>F/f1>−0.3, wherein F is a focal length of the optical imaging lens; f1 is a focal length of the first lens.