US 12,287,467 B2
Zoom lens and imaging apparatus
Taiga Noda, Saitama (JP); and Michio Cho, Saitama (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Aug. 3, 2022, as Appl. No. 17/817,299.
Application 17/817,299 is a continuation of application No. 16/984,256, filed on Aug. 4, 2020, granted, now 11,454,789.
Claims priority of application No. 2019-149424 (JP), filed on Aug. 16, 2019.
Prior Publication US 2022/0390724 A1, Dec. 8, 2022
Int. Cl. G02B 15/14 (2006.01); G02B 13/18 (2006.01); G02B 15/20 (2006.01); G02B 27/64 (2006.01)
CPC G02B 15/1451 (2019.08) [G02B 13/18 (2013.01); G02B 15/145105 (2019.08); G02B 15/145121 (2019.08); G02B 15/20 (2013.01); G02B 27/646 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A zoom lens comprising:
a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a subsequent group consisting of a plurality of lens groups in order from an object side to an image side as lens groups,
wherein in a case of zooming from a wide angle end to a telephoto end, an interval between the first lens group and the second lens group is increased, an interval between the second lens group and the third lens group is changed, an interval between the third lens group and the subsequent group is changed, and each interval between adjacent lens groups in the subsequent group is changed,
the third lens group includes two uncemented positive lenses, one negative lens, and one positive lens consecutively arranged in order from a side closest to the object side to the image side, and
a lens group closest to the image side in the subsequent group consists of a negative meniscus lens having a concave surface toward the object side and a positive lens having a convex surface toward the object side in order from the object side to the image side.