ZOOM LENS AND IMAGE PICKUP APPARATUS USING THE SAME
A zoom lens comprising, in order from the object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; a fourth lens group G4 having negative refractive power; and a fifth lens gr...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
18.01.2018
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Subjects | |
Online Access | Get full text |
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Summary: | A zoom lens comprising, in order from the object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; a fourth lens group G4 having negative refractive power; and a fifth lens group G5 having positive refractive power. The first lens group has a positive lens, the second lens group has a positive lens, and the following conditional expressions (1), (2), (3), (4) are satisfied. -0.015≤Tp2G_min_p≤0.015 (1) 70.3≤νd1G_max_p (2) 1.76≤nd2G_max_p≤2.3 (3) 0.3≤|f2/f3|≤0.9 (4) |
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Bibliography: | Application Number: US201715717816 |