Title:
TELECONVERTER LENS AND IMAGING OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/133053
Kind Code:
A1
Abstract:
Provided are a teleconverter lens and an imaging optical system which are adequately thin in the thickness direction of an imaging device while having a conversion rate of 3 or greater. A luminous flux incident on a teleconverter lens (CL) undergoes primary imaging by an objective part in the teleconverter lens (CL) and is subsequently incident on a main lens (ML) via a relay part, the objective part includes, in order from the subject, a first lens group (GR1) having a positive refractive power, and a second lens group (GR2) having a negative refractive power, and the relay part includes, in order from the main lens, a P2 lens having a positive refractive power, and a reflective optical element for bending a light path.
Inventors:
YAMASHITA ATSUSHI (JP)
Application Number:
PCT/JP2013/054634
Publication Date:
September 12, 2013
Filing Date:
February 23, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
YAMASHITA ATSUSHI (JP)
YAMASHITA ATSUSHI (JP)
International Classes:
G02B15/12; G02B13/18
Foreign References:
| JP2011130014A | 2011-06-30 | |||
| JP2011007824A | 2011-01-13 | |||
| JP2010256380A | 2010-11-11 | |||
| JPH03136013A | 1991-06-10 | |||
| JPS61193113A | 1986-08-27 |
Attorney, Agent or Firm:
TAMURA Keijiro et al. (JP)
Keijichiro Tamura (JP)
Keijichiro Tamura (JP)
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Claims: