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Patent Searching and Data


Title:
CONVERTER LENS, IMAGE CAPTURE OPTICAL ASSEMBLY, AND PORTABLE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2014/199766
Kind Code:
A1
Abstract:
Provided are a converter lens which, while having a conversion ratio of 0.7x or less, is sufficiently thin with respect to the thickness direction of an image capture device and has a small diameter as well, and an image capture optical assembly and an image capture device wherein said converter lens is employed. A converter lens (CL) is configured, in order from the object side, from a first lens (L1) having a negative refractive power, a second lens (L2) having a negative refractive power, and a third lens (L3) having a positive refractive power, and satisfies the following conditional formulae: 0.4

Inventors:
YAMASHITA ATSUSHI (JP)
Application Number:
PCT/JP2014/062792
Publication Date:
December 18, 2014
Filing Date:
May 14, 2014
Export Citation:
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Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B15/10; G02B13/18; G03B17/14; G03B17/56
Foreign References:
JP2003241094A2003-08-27
JP2001272599A2001-10-05
US20110085245A12011-04-14
JPH03260609A1991-11-20
JP2014048590A2014-03-17
Attorney, Agent or Firm:
TAMURA Keijiro et al. (JP)
Keijichiro Tamura (JP)
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