Imaging lens and imaging apparatus equipped with the imaging...

Details Imaging lens and imaging apparatus equipped with the imaging... Imaging lens and imaging apparatus equipped with the imaging...

2011-04-12

2011-04-12

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S715000

Reexamination Certificate

active

07924510

ABSTRACT:
An imaging lens is provided and includes: in order from the object side, a first lens group including a biconcave lens; a second lens including two lenses whose convex surfaces are arranged opposite to each other and having a positive refractive power as a whole; a third lens group including a biconcave lens; and a fourth lens group including two lenses whose convex surfaces are arranged opposite to each other and having positive refractive power, as a whole, the imaging lens satisfying the specific condition.

REFERENCES:
patent: 3838911 (1974-10-01), Ikeda
patent: 55-45007 (1980-03-01), None
patent: 61-90115 (1986-05-01), None
patent: 2002-162562 (2002-06-01), None
patent: 2004-354572 (2004-12-01), None
patent: 2005-24969 (2005-01-01), None

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