JPH1144847A5 - - Google Patents

Info

Publication number
JPH1144847A5
JPH1144847A5 JP1997214197A JP21419797A JPH1144847A5 JP H1144847 A5 JPH1144847 A5 JP H1144847A5 JP 1997214197 A JP1997214197 A JP 1997214197A JP 21419797 A JP21419797 A JP 21419797A JP H1144847 A5 JPH1144847 A5 JP H1144847A5
Authority
JP
Japan
Prior art keywords
lens unit
refractive power
positive refractive
lens
negative refractive
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.)
Granted
Application number
JP1997214197A
Other languages
Japanese (ja)
Other versions
JPH1144847A (en
JP3919301B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP21419797A priority Critical patent/JP3919301B2/en
Priority claimed from JP21419797A external-priority patent/JP3919301B2/en
Publication of JPH1144847A publication Critical patent/JPH1144847A/en
Publication of JPH1144847A5 publication Critical patent/JPH1144847A5/ja
Application granted granted Critical
Publication of JP3919301B2 publication Critical patent/JP3919301B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【００２１】
図中Ｌ１は正の屈折力の第１群、Ｌ２は負の屈折力の第２群、Ｌ３は正の屈折力の第３群、Ｌ４は正の屈折力の第４群であり、負の屈折力の第４１群と正の屈折力の第４２群とを有している。ＳＰは開口絞りであり、第３群Ｌ３の前方に配置している。ＧＡはズームレンズの保護を目的とした必要に応じて設けられる保護ガラス、ＧＢは色分解プリズムやフェースプレートやフィルター等のガラスブロックである。ＩＰは像面であり、ＣＣＤ等の撮像素子が配置されている。[0021]
In the figure, L1 is the first lens unit with positive refractive power, L2 is the second lens unit with negative refractive power, L3 is the third lens unit with positive refractive power, and L4 is the fourth lens unit with positive refractive power, with a 41st lens unit with negative refractive power and a 42nd lens unit with positive refractive power. SP is an aperture stop located in front of the third lens unit L3. GA is a protective glass provided as needed to protect the zoom lens, and GB is a glass block such as a color separation prism, faceplate, or filter. IP is the image plane where an image sensor such as a CCD is located.

JP21419797A 1997-07-24 1997-07-24 Rear focus zoom lens and imaging apparatus using the same Expired - Fee Related JP3919301B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21419797A JP3919301B2 (en) 1997-07-24 1997-07-24 Rear focus zoom lens and imaging apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21419797A JP3919301B2 (en) 1997-07-24 1997-07-24 Rear focus zoom lens and imaging apparatus using the same

Publications (3)

Publication Number Publication Date
JPH1144847A JPH1144847A (en) 1999-02-16
JPH1144847A5 true JPH1144847A5 (en) 2004-11-25
JP3919301B2 JP3919301B2 (en) 2007-05-23

Family

ID=16651845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21419797A Expired - Fee Related JP3919301B2 (en) 1997-07-24 1997-07-24 Rear focus zoom lens and imaging apparatus using the same

Country Status (1)

Country Link
JP (1) JP3919301B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007264032A (en) * 2006-03-27 2007-10-11 Pentax Corp Condensing optical system, confocal optical system, and scanning confocal endoscope
JP2009251117A (en) * 2008-04-02 2009-10-29 Panasonic Corp Zoom lens system, interchangeable lens device and camera system
JP2009251118A (en) * 2008-04-02 2009-10-29 Panasonic Corp Zoom lens system, interchangeable lens device and camera system
JP2009251115A (en) * 2008-04-02 2009-10-29 Panasonic Corp Zoom lens system, interchangeable lens device and camera system
JP5247212B2 (en) * 2008-04-02 2013-07-24 パナソニック株式会社 Zoom lens system, interchangeable lens device, and camera system

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