Lens optical system

Provided is a lens optical system, which includes (from object to image side) a first lens group having positive refractive power, a stop, and a second lens group having positive refractive power. The first lens group comprises a plurality of lenses among which there are a lens closest to the object...

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Bibliographic Details
Main Author HEU MIN
Format Patent
LanguageEnglish
Published 11.01.2011
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:Provided is a lens optical system, which includes (from object to image side) a first lens group having positive refractive power, a stop, and a second lens group having positive refractive power. The first lens group comprises a plurality of lenses among which there are a lens closest to the object side and a lens closest to the stop having negative refractive powers. The second lens group includes a front group and a rear group.
Bibliography:Application Number: US20090499190