US 12,038,622 B2
Optical imaging system
Jae Hyuk Huh, Suwon-si (KR); You Jin Jeong, Suwon-si (KR); Byung Hyun Kim, Suwon-si (KR); and So Mi Yang, Suwon-si (KR)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed on Aug. 4, 2023, as Appl. No. 18/365,628.
Claims priority of application No. 10-2022-0150877 (KR), filed on Nov. 11, 2022; and application No. 10-2023-0034745 (KR), filed on Mar. 16, 2023.
Prior Publication US 2024/0159990 A1, May 16, 2024
Int. Cl. G02B 9/60 (2006.01); G02B 13/18 (2006.01)
CPC G02B 9/60 (2013.01) [G02B 13/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical imaging system, comprising:
a first lens having positive refractive power;
a second lens having refractive power;
a third lens having refractive power;
a fourth lens having refractive power;
a fifth lens having negative refractive power, wherein the first to fifth lenses are sequentially disposed; and
a reflective member having a plurality of reflective surfaces to reflect the light refracted by the fifth lens multiple times,
wherein 3<BFL/TL<7 is satisfied, where BFL is a distance on an optical axis from an image-side surface of the fifth lens to an imaging plane, and TL is a distance on an optical axis from an object-side surface of the first lens to the image-side surface of the fifth lens.