JP2005156830A5 - - Google Patents

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Publication number
JP2005156830A5
JP2005156830A5 JP2003393938A JP2003393938A JP2005156830A5 JP 2005156830 A5 JP2005156830 A5 JP 2005156830A5 JP 2003393938 A JP2003393938 A JP 2003393938A JP 2003393938 A JP2003393938 A JP 2003393938A JP 2005156830 A5 JP2005156830 A5 JP 2005156830A5
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JP
Japan
Prior art keywords
lens
optical system
group
refractive power
variable magnification
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2003393938A
Other languages
Japanese (ja)
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JP2005156830A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2003393938A priority Critical patent/JP2005156830A/en
Priority claimed from JP2003393938A external-priority patent/JP2005156830A/en
Priority to PCT/JP2004/017028 priority patent/WO2005047952A1/en
Priority to EP04799705A priority patent/EP1645900A4/en
Priority to US10/559,830 priority patent/US7540671B2/en
Publication of JP2005156830A publication Critical patent/JP2005156830A/en
Publication of JP2005156830A5 publication Critical patent/JP2005156830A5/ja
Priority to US11/982,299 priority patent/US7583448B2/en
Priority to US11/982,193 priority patent/US7583447B2/en
Priority to US11/981,998 priority patent/US7573650B2/en
Pending legal-status Critical Current

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Claims (8)

物体側から順に、負の屈折力を有する第１群と、正の屈折力を有する第２群と、正の屈折力を有する第３群とから構成された変倍光学系であって、少なくとも１枚のレンズが、成形後において少なくとも光学機能面を含む面となる第１の素材と、成形後において少なくとも光学機能面を含む面以外の面となる第２の素材とを用いて成形され、前記第１の素材と前記第２の素材とが一体化された一体レンズからなることを特徴とする変倍光学系。 A variable magnification optical system including, in order from the object side, a first group having negative refractive power, a second group having positive refractive power, and a third group having positive refractive power, One lens is molded using a first material that becomes a surface including at least an optical functional surface after molding, and a second material that becomes a surface other than a surface including at least an optical functional surface after molding, A variable magnification optical system comprising an integral lens in which the first material and the second material are integrated. 前記第１群が少なくとも１枚の前記一体レンズを有し、前記一体レンズの少なくとも１枚が正の屈折力を有し、その少なくとも１枚の正レンズが以下の条件式を満たすことを特徴とする請求項１記載の変倍光学系。
０．１＜ＨＨ１／φ１＜１５ ・・・（１）
ただし、ＨＨ１：第１群正レンズの主点間隔、
φ１：第１群正レンズの屈折力、
である。 The first group includes at least one integrated lens, at least one of the integrated lenses has a positive refractive power, and the at least one positive lens satisfies the following conditional expression: The variable magnification optical system according to claim 1.
0.1 <HH1 / φ1 <15 (1)
However, HH1: principal point interval of the first group positive lens,
φ1: refracting power of the first lens group positive lens,
It is. 前記第２群が少なくとも１枚の前記一体レンズを有し、該一体レンズの少なくとも１枚が正の屈折力を有し、その少なくとも１枚の前記正レンズが以下の条件式を満たすことを特徴とする請求項１又は２記載の変倍光学系。
０．１＜ＨＨ２／φ２＜１０ ・・・（２）
ただし、ＨＨ２：第２群正レンズの主点間隔、
φ２：第２群正レンズの屈折力、
である。 The second group includes at least one integrated lens, at least one of the integrated lenses has a positive refractive power, and the at least one positive lens satisfies the following conditional expression: The variable magnification optical system according to claim 1 or 2.
0.1 <HH2 / φ2 <10 (2)
However, HH2: principal point interval of the second group positive lens,
φ2: refractive power of the second lens group positive lens,
It is. 前記第３群が少なくとも１枚の前記一体レンズを有し、前記一体レンズの少なくとも１枚が正の屈折力を有する正レンズであり、その少なくとも１枚の正レンズが以下の条件式を満たすことを特徴とする請求項１から３の何れか１項記載の変倍光学系。
０．１＜ＨＨ３／φ３＜２０ ・・・（３）
ただし、ＨＨ３：第３群正レンズの主点間隔、
φ３：第３群正レンズの屈折力、
である。 The third group includes at least one integrated lens, and at least one of the integrated lenses is a positive lens having a positive refractive power, and the at least one positive lens satisfies the following conditional expression: The variable magnification optical system according to any one of claims 1 to 3, wherein:
0.1 <HH3 / φ3 <20 (3)
However, HH3: principal point interval of the third group positive lens,
φ3: refractive power of the third lens group positive lens,
It is. 前記第２の素材が遮光性を有するものであることを特徴とする請求項１から４の何れか１項記載の変倍光学系。 5. The zoom optical system according to claim 1, wherein the second material has a light shielding property. 前記第２の素材が、金属、サーメット又はセラミックスであることを特徴とする請求項１から５の何れか１項記載の変倍光学系。 6. The variable magnification optical system according to claim 1, wherein the second material is metal, cermet, or ceramics. 光学系を構成する少なくとも１つの光学素子の光学材料として有機無機複合材料を用いることを特徴とする請求項１から６の何れか１項記載の変倍光学系。 7. A variable magnification optical system according to claim 1, wherein an organic-inorganic composite material is used as an optical material of at least one optical element constituting the optical system. 請求項１から７の何れか１項記載の変倍光学系と、その像側に配された電子撮像素子とを有することを特徴とする電子機器。 An electronic apparatus comprising: the variable magnification optical system according to any one of claims 1 to 7; and an electronic image pickup device arranged on an image side thereof.
JP2003393938A 2003-11-17 2003-11-25 Variable magnification optical system and electronic apparatus using the same Pending JP2005156830A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2003393938A JP2005156830A (en) 2003-11-25 2003-11-25 Variable magnification optical system and electronic apparatus using the same
PCT/JP2004/017028 WO2005047952A1 (en) 2003-11-17 2004-11-10 A variable-power optical system and electronic device using same
EP04799705A EP1645900A4 (en) 2003-11-17 2004-11-10 A variable-power optical system and electronic device using same
US10/559,830 US7540671B2 (en) 2003-11-17 2004-11-10 Variable-power optical system and electronic device using same
US11/982,299 US7583448B2 (en) 2003-11-17 2007-10-31 Zoom optical system and electronic system incorporating it
US11/982,193 US7583447B2 (en) 2003-11-17 2007-10-31 Zoom optical system and electronic system incorporating IT
US11/981,998 US7573650B2 (en) 2003-11-17 2007-10-31 Zoom optical system and electronic system incorporating it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003393938A JP2005156830A (en) 2003-11-25 2003-11-25 Variable magnification optical system and electronic apparatus using the same

Publications (2)

Publication Number Publication Date
JP2005156830A JP2005156830A (en) 2005-06-16
JP2005156830A5 true JP2005156830A5 (en) 2006-12-21

Family

ID=34720153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003393938A Pending JP2005156830A (en) 2003-11-17 2003-11-25 Variable magnification optical system and electronic apparatus using the same

Country Status (1)

Country Link
JP (1) JP2005156830A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4569155B2 (en) * 2004-04-20 2010-10-27 コニカミノルタオプト株式会社 Magnification optical system, imaging lens device, and digital device
JP2006039063A (en) * 2004-07-23 2006-02-09 Konica Minolta Opto Inc Magnification optical system, imaging lens device, and digital device
JP2006119193A (en) * 2004-10-19 2006-05-11 Canon Inc Zoom lens and imaging apparatus having the same
JP4898200B2 (en) * 2005-11-30 2012-03-14 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP4884783B2 (en) * 2006-01-19 2012-02-29 富士フイルム株式会社 Imaging magnification changing optical system and imaging apparatus using the same
JP4971726B2 (en) * 2006-08-31 2012-07-11 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP2008129460A (en) * 2006-11-22 2008-06-05 Olympus Imaging Corp Zoom optical system and electronic imaging apparatus having the same
JP5424553B2 (en) * 2007-03-12 2014-02-26 オリンパス株式会社 Imaging optical system and electronic imaging apparatus having the same
JP5213169B2 (en) * 2008-08-22 2013-06-19 オリンパスイメージング株式会社 Three-group zoom lens and image pickup apparatus including the same
JP5207806B2 (en) * 2008-04-09 2013-06-12 キヤノン株式会社 Zoom lens and imaging apparatus having the same
JP5508812B2 (en) * 2009-10-29 2014-06-04 オリンパス株式会社 Electronic imaging device
JP2013160889A (en) * 2012-02-03 2013-08-19 Panasonic Corp Lens barrel integral type lens array
TWI456249B (en) * 2012-07-04 2014-10-11 Largan Precision Co Ltd Image system lens assembly
JP2016102809A (en) * 2013-03-04 2016-06-02 株式会社ニコン Zoom lens, optical device, and zooming method of zoom lens
TWI594010B (en) 2016-07-05 2017-08-01 大立光電股份有限公司 Optical imaging lens assembly, image capturing apparatus and electronic device
US10684218B2 (en) 2017-04-11 2020-06-16 Canon Kabushiki Kaisha Moisture detecting apparatus for recording material and image forming apparatus

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