Zoom lens and camera with the zoom lens

Details Zoom lens and camera with the zoom lens Zoom lens and camera with the zoom lens

2006-09-12

2006-09-12

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

Reexamination Certificate

active

07106521

ABSTRACT:
A zoom lens includes a first lens unit which does not move for zooming and has positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power, these lens unit being arranged in order from the object side to the image side. Due to this simple construction, it is possible to obtain high optical performance over the entire object distance from an object at infinity to a nearby object.

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English translation of JP05-093862.
A Notification of Reason for Rejection issued from Japanese Patent Office for Japanese application No. JP 2001-300356 dated May 11, 2004.
English translation of the Notification of Reason for Rejection issued from the Japanese Patent Office for Japanese application No. JP 2001-300356 dated May 11, 2004.
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English translation of the Japanese Office Action for application No. 2001-300356 issued on Aug. 5, 2004.
English translation of JPLO 5-34597.

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