Patent ID: 11971611
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. An optical imaging system comprising:
a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order from an object side of the optical imaging system toward an image plane of the optical imaging system,
wherein the fourth lens has negative refractive power,
wherein 0.5<L12345TRavg/L7TR<0.9, where L12345TRavg is an average value of overall outer diameters of the first to fifth lenses, L7TR is an overall outer diameter of the seventh lens, L12345TRavg and L7TR are expressed in a same unit of measurement, and
wherein an absolute value of a radius of curvature of an image-side surface of the second lens is greater than an absolute value of a radius of curvature of an image-side surface of the sixth lens.