Two-group zoom lens and an electronic imaging apparatus...

Details Two-group zoom lens and an electronic imaging apparatus... Two-group zoom lens and an electronic imaging apparatus...

2006-05-23

2008-10-14

Schwartz, Jordan M (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S680000

Reexamination Certificate

active

07436601

ABSTRACT:
The two-group zoom lens comprises in order from the object side, the first negative lens group, and the second positive lens group. Change of magnification from a wide angle end to a telephoto end is performed by narrowing the interval between two lens groups, and the first negative lens group is moved toward the object side when focusing from focusing at the infinite object point to focusing at a short-distance object point performed, and specific conditions are satisfied.

REFERENCES:
patent: 6169635 (2001-01-01), Ozaki et al.
patent: 6809882 (2004-10-01), Takatsuki
patent: 2003/0030918 (2003-02-01), Murayama
patent: 2003/0210471 (2003-11-01), Mihara et al.

Affiliated with

Also associated with

Rating

Two-group zoom lens and an electronic imaging apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-group zoom lens and an electronic imaging apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-group zoom lens and an electronic imaging apparatus... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4010594