JPH0444243B2 - - Google Patents

Info

Publication number
JPH0444243B2
JPH0444243B2 JP63036623A JP3662388A JPH0444243B2 JP H0444243 B2 JPH0444243 B2 JP H0444243B2 JP 63036623 A JP63036623 A JP 63036623A JP 3662388 A JP3662388 A JP 3662388A JP H0444243 B2 JPH0444243 B2 JP H0444243B2
Authority
JP
Japan
Prior art keywords
group
lens
rear group
condition
focal length
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.)
Expired
Application number
JP63036623A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01211712A (ja
Inventor
Hiroyuki Hirano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP63036623A priority Critical patent/JPH01211712A/ja
Priority to US07/311,919 priority patent/US4948236A/en
Publication of JPH01211712A publication Critical patent/JPH01211712A/ja
Publication of JPH0444243B2 publication Critical patent/JPH0444243B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
    • G02B9/06—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only two + components
    • G02B9/08—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only two + components arranged about a stop
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/20—Soft-focus objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP63036623A 1988-02-19 1988-02-19 ソフトフォーカスレンズ Granted JPH01211712A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP63036623A JPH01211712A (ja) 1988-02-19 1988-02-19 ソフトフォーカスレンズ
US07/311,919 US4948236A (en) 1988-02-19 1989-02-17 Soft-focus lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63036623A JPH01211712A (ja) 1988-02-19 1988-02-19 ソフトフォーカスレンズ

Publications (2)

Publication Number Publication Date
JPH01211712A JPH01211712A (ja) 1989-08-24
JPH0444243B2 true JPH0444243B2 (en]) 1992-07-21

Family

ID=12474942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63036623A Granted JPH01211712A (ja) 1988-02-19 1988-02-19 ソフトフォーカスレンズ

Country Status (2)

Country Link
US (1) US4948236A (en])
JP (1) JPH01211712A (en])

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2886907B2 (ja) * 1989-10-25 1999-04-26 旭光学工業株式会社 ソフトフォーカスレンズ
DE4133844A1 (de) * 1991-10-12 1993-04-15 Leica Camera Gmbh Fotografisches objektiv vom triplettyp
JP3528162B2 (ja) * 1995-08-17 2004-05-17 株式会社ニコン ソフトフォーカス切り換え可能なレンズ系
JPH09179023A (ja) * 1995-12-25 1997-07-11 Asahi Optical Co Ltd 広角ソフトフォーカスレンズ
KR100849827B1 (ko) * 2007-02-06 2008-07-31 삼성전기주식회사 초소형 촬상 광학계
US7948550B2 (en) * 2008-06-27 2011-05-24 Ricoh Co., Ltd. Electro-optic imaging system with aberrated triplet lens compensated by digital image processing
EP3098639A1 (de) * 2015-05-28 2016-11-30 Lomographische AG Objektiv zur veränderbaren einstellung der aberrationen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141223A (en) * 1976-05-20 1977-11-25 Mamiya Camera Soft focus lens
JPS54156531A (en) * 1978-05-31 1979-12-10 Mamiya Camera Aberration variable lens
JPS5552013A (en) * 1978-10-13 1980-04-16 Canon Inc Soft focus lens
JPS5650309A (en) * 1979-10-02 1981-05-07 Mamiya Koki Kk Soft focus lens
JPS55129308A (en) * 1980-03-17 1980-10-07 Minolta Camera Co Ltd Aberration variable lens

Also Published As

Publication number Publication date
US4948236A (en) 1990-08-14
JPH01211712A (ja) 1989-08-24

Similar Documents

Publication Publication Date Title
US6519097B2 (en) Gaussian lens for photography
US4733952A (en) Small zoom lens
JP2558138B2 (ja) 変倍レンズ
JP2526979B2 (ja) リアコンバ―ジョンレンズ
JP3735909B2 (ja) レトロフォーカス型レンズ
JPH06130291A (ja) 標準レンズ
JP3607958B2 (ja) レトロフォーカス型レンズ
JP4491107B2 (ja) 撮影用レンズ
US4412725A (en) Rear stop diaphragm zoom lens
US4422734A (en) Photographic lens system having an auxiliary lens
JPH0123763B2 (en])
JPH1130743A (ja) レトロフォーカス型レンズ
JPH0444243B2 (en])
US4759619A (en) Inverted telephoto type wide angle lens system with a rear focusing unit
JP2676400B2 (ja) 高倍率なコンパクトズームレンズ
JPH11271610A (ja) 中望遠レンズ
JPH0677102B2 (ja) 広角レンズ
US4268128A (en) Ocular of large visual field
US4690517A (en) Retrofocus type wide angle lens
JPH07333494A (ja) 写真撮影用レンズ
JP3038974B2 (ja) 小型広角レンズ
JPH0850238A (ja) 広角レンズ
JPS58126512A (ja) 大口径望遠レンズ
JPS6126044B2 (en])
US4396256A (en) Large aperture ratio, long focus lens

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees