Zoom lens and imaging apparatus

Details Zoom lens and imaging apparatus Zoom lens and imaging apparatus

2011-03-22

2011-03-22

Pritchett, Joshua L (Department: 2872)

Optical: systems and elements

Image stabilization

By movable refractive structure

C359S676000, C359S684000

Reexamination Certificate

active

07911697

ABSTRACT:
A lens includes a front group including a plurality of lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

REFERENCES:
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patent: 10-246855 (1998-09-01), None
patent: 11-044845 (1999-02-01), None

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