Zoom lens and image pickup apparatus including the same

Details Zoom lens and image pickup apparatus including the same Zoom lens and image pickup apparatus including the same

2008-02-27

2009-06-09

Martinez, Joseph (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S568000, C359S740000

Reexamination Certificate

active

07545577

ABSTRACT:
A compact zoom lens includes a first lens unit disposed closest to an object side, an aperture, and a rear lens group. The first lens unit includes a first diffraction optical part having positive refractive power, and the rear lens group includes a second diffraction optical part having positive refractive power. The power relation between the two diffraction optical parts and the positions of the diffraction optical parts are set appropriately. The zoom lens can have a high zoom ratio wherein chromatic aberration is fully corrected, and an image pickup apparatus employing this zoom lens can be provided.

REFERENCES:
patent: 6154323 (2000-11-01), Kamo
patent: 6449433 (2002-09-01), Hagimori et al.
patent: 6788464 (2004-09-01), Misaka
patent: 7133213 (2006-11-01), Hayakawa
patent: 7253965 (2007-08-01), Shibayama et al.
patent: 2004-117826 (2004-04-01), None
patent: 2004-117827 (2004-04-01), None

Affiliated with

Also associated with

Rating

Zoom lens and image pickup apparatus including the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens and image pickup apparatus including the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens and image pickup apparatus including the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4097228