Zoom lens, imaging device, movable object, and system
AssigneeSz Dji Technology Co., Ltd.
InventorsShigehiko Matsunaga, Atsushi Ohata, Atsuo Minato
Life of this patent
Estimating the term…
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AssigneeSz Dji Technology Co., Ltd.
InventorsShigehiko Matsunaga, Atsushi Ohata, Atsuo Minato
Estimating the term…
A zoom lens includes a first lens group with a negative refractive power, a second lens group with a positive refractive power, and a third lens group with a positive refractive power. When the zoom lens changes from a wide angle end to a telephoto end, a spacing between the first lens group and the second lens group is reduced, and a spacing between the second lens group and the third lens group changes. The first lens group includes a first lens, a second lens, a third lens, and a fourth lens. Refractive powers of the first lens, the second lens, and the third lens are negative, and a refractive power of the fourth lens is positive. Abbe numbers of the first lens, the second lens, and the third lens are larger than 60. A ratio of a focal length of the first lens group over a focal length of the zoom lens at a wide angle end is larger than −2.5 and smaller than −1.2.
A zoom lens comprising, in an order from a first side of the zoom lens toward a second side of the zoom lens:
Dependencies are inferred from the claim text.