WIDE ANGLE OPTICAL SYSTEM

PURPOSE: A wide angle optical system is provided to make a view angle over horizontal 140 degrees by two pieces of lenses made of plastic materials. CONSTITUTION: A wide angle optical system includes a first lens(10) and a second lens(20). The first lens has negative power and a meniscus shape which...

Full description

Saved in:
Bibliographic Details
Main Authors LEE, KANG JIN, JUNG, PHIL HO
Format Patent
LanguageEnglish
Korean
Published 12.06.2013
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: A wide angle optical system is provided to make a view angle over horizontal 140 degrees by two pieces of lenses made of plastic materials. CONSTITUTION: A wide angle optical system includes a first lens(10) and a second lens(20). The first lens has negative power and a meniscus shape which is convex toward an object. The second lens has positive power and comprises a convex plane toward the top surface. The first lens and the second lens are successively located from a photographing object.
Bibliography:Application Number: KR20110128556