Facsimile and static presentation processing – Natural color facsimile – Scanning
Reexamination Certificate
2007-02-20
2007-02-20
Lee, Thomas D. (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Scanning
C358S505000, C359S652000, C385S124000
Reexamination Certificate
active
10139325
ABSTRACT:
An imaging lens comprises a first, a second, a third, and a fourth lens group from an object toward an image. The first lens group includes a first lens that is a convex meniscus lens with a convex surface on the object side. The second lens group includes a second lens having a positive refractive power, and a third lens bonded to the second lens and having a negative refractive power. The third lens group includes a fourth lens having a negative refractive power, and a fifth lens bonded to the fourth lens and having a positive refractive power. The fourth lens group includes a sixth lens having a positive refractive power. The imaging lens satisfies the conditionin-line-formulae description="In-line Formulae" end="lead"?0.10<D/f<0.19in-line-formulae description="In-line Formulae" end="tail"?where D denotes a sum of an air gap between the first lens and the second lens and an air gap between the fifth lens and the sixth lens, and f denotes a focal length of the entirety of the imaging lens with respect to an e-ray.
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Gibbs Heather D
Lee Thomas D.
Oblon, Spivak, McLelland, Maier & Neustadt, P.C.
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