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IN2014DN03496A - - Google Patents

Info

Publication number
IN2014DN03496A
IN2014DN03496A IN3496DEN2014A IN2014DN03496A IN 2014DN03496 A IN2014DN03496 A IN 2014DN03496A IN 3496DEN2014 A IN3496DEN2014 A IN 3496DEN2014A IN 2014DN03496 A IN2014DN03496 A IN 2014DN03496A
Authority
IN
India
Prior art keywords
lens
glass type
glass
line
abbe
Prior art date
Application number
Inventor
Yoshikazu Hirayama
Miho Matsumoto
Original Assignee
Nikon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nikon Corp filed Critical Nikon Corp
Publication of IN2014DN03496A publication Critical patent/IN2014DN03496A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
    • G02B15/177—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/145—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only
    • G02B15/1455—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being negative
    • G02B15/145519—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being negative arranged -+--+
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/145—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only
    • G02B15/1455—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being negative
    • G02B15/145527—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being negative arranged -+-++
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/15—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective compensation by means of only one movement or by means of only linearly related movements, e.g. optical compensation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
    • G02B27/4211—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant correcting chromatic aberrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Lenses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

This zoom optical system is formed from arranged in order from the object side a first lens group having negative refractive power and other lens groups and when magnification is varied the spacing between each of the lens groups changes. The first lens group is disposed closest to the object side and has a first negative lens which has a diffraction optical element on the image side lens surface and a positive lens disposed more to the image side than the first negative lens. Furthermore the glass material used in the positive lens satisfies the following conditional equations. ?1p = 35 ? (?g F) = 0.007 Here ?1p is the Abbe s number the basis of which is the d line for the glass material used in the positive lens of the first lens group and ? (?g F) is the deviation in the partial variance ratio from a standard line for glass material used in the positive lens when a straight line joining glass type A and glass type B forms the standard line in a graph that has the Abbe s number of which the basis is the d line as the horizontal axis and the partial variance ratio (?g F) = (ng nF)/(nF nC) as the vertical axis. Moreover the Abbe s number ?d for the glass type A and glass type B and the partial variance ratio (?g F)) are the following values. Glass type A: ?d = 60.49 (?g F) = 0.5436 Glass type B: ?d = 36.26 (?g F) = 0.5828
IN3496DEN2014 2012-02-29 2013-02-21 IN2014DN03496A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012043926 2012-02-29
PCT/JP2013/000984 WO2013128856A1 (en) 2012-02-29 2013-02-21 Zoom optical system

Publications (1)

Publication Number Publication Date
IN2014DN03496A true IN2014DN03496A (en) 2015-06-05

Family

ID=49082071

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3496DEN2014 IN2014DN03496A (en) 2012-02-29 2013-02-21

Country Status (5)

Country Link
US (1) US9535240B2 (en)
JP (1) JP5854124B2 (en)
CN (1) CN104040405B (en)
IN (1) IN2014DN03496A (en)
WO (1) WO2013128856A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6234784B2 (en) * 2013-11-13 2017-11-22 富士フイルム株式会社 Zoom lens and imaging device
US10281693B2 (en) 2014-05-09 2019-05-07 Nikon Corporation Inverted equal-magnification relay lens and camera system
WO2016121944A1 (en) * 2015-01-30 2016-08-04 株式会社ニコン Zoom lens, optical apparatus, and zoom lens production method
JPWO2016121955A1 (en) 2015-01-30 2017-10-12 株式会社ニコン Zoom lens, optical device, and method of manufacturing zoom lens
WO2016121926A1 (en) * 2015-01-30 2016-08-04 株式会社ニコン Zoom lens, optical apparatus, and zoom lens production method
CN106124063B (en) * 2016-08-30 2022-11-15 福建福光天瞳光学有限公司 Ultra-large-field-of-view long-wave infrared optical athermalization temperature measurement lens and manufacturing method thereof
JP6649287B2 (en) * 2017-01-05 2020-02-19 富士フイルム株式会社 Zoom lens and imaging device
CN108572433B (en) * 2017-03-10 2020-12-29 湖北华中光电科技有限公司 Binary surface high-power zoom lens
US11971540B2 (en) * 2017-12-15 2024-04-30 Nikon Corporation Optical system, optical apparatus, and method of manufacturing optical system
US20210208374A1 (en) * 2018-05-28 2021-07-08 Nikon Corporation Optical system, optical apparatus, and method for manufacturing the optical system
CN111308654B (en) * 2020-02-28 2022-05-20 江苏大学 Zooming optical system for weak light signal collection

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6081389A (en) 1997-07-31 2000-06-27 Canon Kabushiki Kaisha Zoom lens of retrofocus type
JPH1152235A (en) * 1997-07-31 1999-02-26 Canon Inc Zoom lens
JP3832935B2 (en) * 1997-08-01 2006-10-11 キヤノン株式会社 Zoom lens
JP3843607B2 (en) * 1998-06-19 2006-11-08 コニカミノルタビジネステクノロジーズ株式会社 Zoom lens
JP4491845B2 (en) * 1998-08-17 2010-06-30 株式会社ニコン Imaging optics
JP2000147380A (en) * 1998-11-10 2000-05-26 Canon Inc Zoom lens and camera
JP3605034B2 (en) * 2000-12-22 2004-12-22 キヤノン株式会社 Zoom lens and optical device using the same
JP2003021783A (en) * 2001-07-06 2003-01-24 Canon Inc Zoom lens and optical equipment using the same
JP2004117826A (en) 2002-09-26 2004-04-15 Minolta Co Ltd Imaging apparatus
JP4612824B2 (en) * 2004-09-17 2011-01-12 キヤノン株式会社 Image projection device
EP1830205B1 (en) 2004-12-20 2014-08-20 Nikon Corporation Close-bonded diffractive optical element
JP4760714B2 (en) 2004-12-20 2011-08-31 株式会社ニコン Adhesive multilayer diffractive optical element, optical material used therefor, resin precursor and resin precursor composition
JP4898410B2 (en) * 2006-12-14 2012-03-14 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP2009251117A (en) 2008-04-02 2009-10-29 Panasonic Corp Zoom lens system, interchangeable lens device and camera system
JP5544731B2 (en) 2009-03-17 2014-07-09 株式会社ニコン Photographic lens and optical apparatus provided with the photographic lens
WO2011024258A1 (en) * 2009-08-25 2011-03-03 キヤノン株式会社 Optical system and optical device having same
JP2012150432A (en) * 2010-12-28 2012-08-09 Panasonic Corp Zoom lens system, imaging device and camera
JP5885518B2 (en) * 2012-01-30 2016-03-15 キヤノン株式会社 Imaging optical system and imaging apparatus having the same

Also Published As

Publication number Publication date
US9535240B2 (en) 2017-01-03
US20140268363A1 (en) 2014-09-18
JPWO2013128856A1 (en) 2015-07-30
JP5854124B2 (en) 2016-02-09
CN104040405B (en) 2017-05-03
CN104040405A (en) 2014-09-10
WO2013128856A1 (en) 2013-09-06

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