ZOOM LENS AND IMAGE PICKUP DEVICE INCLUDING THE SAME

ZOOM LENS AND IMAGE PICKUP DEVICE INCLUDING THE SAME

A zoom lens and an image pickup device. The zoom lens includes sequentially from an object side 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 fourth lens group having a posit...

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1. Verfasser: KAKIMOTO TSUYOSHI
Format: Patent
Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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description A zoom lens and an image pickup device. The zoom lens includes sequentially from an object side 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 fourth lens group having a positive refractive power, which are arranged in order from an object side to an image side, wherein, when the zoom lens is zoomed from a wide angle position to a telephoto position, all of the first lens group, the second lens group, the third lens group, and the fourth lens group move relative to one another so that a distance between the first lens group and the second lens group increases, a distance between the second lens group and the third lens group reduces, and a distance between the third lens group and the fourth lens group increases.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title ZOOM LENS AND IMAGE PICKUP DEVICE INCLUDING THE SAME
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