Zoom lens and imaging apparatus

Details Zoom lens and imaging apparatus Zoom lens and imaging apparatus

2008-11-18

2009-10-27

Martinez, Joseph (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S676000, C359S708000, C359S714000, C359S733000, C359S763000

Reexamination Certificate

active

07609460

ABSTRACT:
A zoom lens configured by arranging a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group in order from the object side to the image side, and further having an aperture diaphragm on the object side of the third lens group. In the first lens group, a first lens, a second lens, and a third lens are located in order from the object side to the image side. In the second lens group, a fourth lens, a fifth lens, and a sixth lens are located in order from the object side to the image side. The third lens group is made up of a seventh lens which is a convex lens, the fourth lens group is made up of at least two or more cemented lenses, the third lens group and the fourth lens group include at least one surface formed into an aspherical surface.

REFERENCES:
patent: 7277629 (2007-10-01), Nishina
patent: 2006-098963 (2006-04-01), None

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