Variable focal length lens system

Details Variable focal length lens system Variable focal length lens system

2009-07-21

2010-12-07

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S676000

Reexamination Certificate

active

07848028

ABSTRACT:
A variable focal length lens system includes: a first lens group having a positive refracting power; a second lens group having a negative refracting power; a third lens group having a positive refracting power; a fourth lens group having a negative refracting power; a fifth lens group having a negative refracting power; and a sixth lens group having a positive refracting power; the first to sixth lens groups being disposed in order from an object side.

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Japanese Office Action issued Apr. 15, 2010 for corresponding Japanese Application No. 2008-202967.

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