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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Bibliographic Details
Main Authors KON Toyoki, YAMADA Yasuharu, YANAI Tetsuya, MURAKAMI Daichi, KAWAMURA Kazuteru
Format Patent
LanguageEnglish
Published 18.01.2018
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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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)
Bibliography:Application Number: US201715717816