Optical: systems and elements – Lens – Single component with multiple elements
Reexamination Certificate
2011-08-16
2011-08-16
Collins, Darryl J (Department: 2873)
Optical: systems and elements
Lens
Single component with multiple elements
C359S724000, C359S900000, C359S793000, C359S784000, C359S642000
Reexamination Certificate
active
08000040
ABSTRACT:
In an imaging lens, one compound lens and two single lenses are arranged in a lens barrel. On the light output side of the lens barrel, a filter is arranged with a distance from lens barrel. With a further distance from the filter, an imaging element is arranged. In the compound lens, a resin lens is bonded to a base member lens, having an output surface center of the resin lens displaced by a prescribed amount relative to an output surface center of the base member lens, so that a transmission decentration amount attributed to the base member lens, not including the resin lens, and the single lenses is cancelled by a transmission decentration amount by the resin lens when taken as a whole lens system. Thus, the imaging lens capable of suppressing reduction in resolving power due to transmission decentration of the lenses is obtained.
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Aoi Yuma
Nakagawa Youhei
Ota Satoru
Ueta Yutaka
Collins Darryl J
Sanyo Electric Co,. Ltd.
Westerman Hattori Daniels & Adrian LLP
Wilkes Zachary
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