JPS6148129B2 - - Google Patents

Info

Publication number
JPS6148129B2
JPS6148129B2 JP56173751A JP17375181A JPS6148129B2 JP S6148129 B2 JPS6148129 B2 JP S6148129B2 JP 56173751 A JP56173751 A JP 56173751A JP 17375181 A JP17375181 A JP 17375181A JP S6148129 B2 JPS6148129 B2 JP S6148129B2
Authority
JP
Japan
Prior art keywords
lens
positive
object side
lenses
surface facing
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
JP56173751A
Other languages
English (en)
Other versions
JPS5876806A (ja
Inventor
Masaharu Hisada
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 JP56173751A priority Critical patent/JPS5876806A/ja
Priority to US06/431,929 priority patent/US4487485A/en
Publication of JPS5876806A publication Critical patent/JPS5876806A/ja
Publication of JPS6148129B2 publication Critical patent/JPS6148129B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Claims (1)

  1. 【特許請求の範囲】 １ 物体側より順に、第１レンズは物体側に凸面
    を向けた正メニスカスレンズ、第２、第３レンズ
    は物体側に凸面を向けた負メニスカスレンズ、第
    ４、第５レンズは正レンズ、第６レンズは両凹レ
    ンズ、第７レンズは正レンズ、第８レンズの負レ
    ンズと第９レンズの正レンズは全体として正の度
    を持つ接合レンズである８群９枚構成レンズで、
    次の条件を満足している性能良好なレトロフオー
    カス型広角写真レンズ。 (1) Ｆ／１．３＜｜Ｆ1
JP56173751A 1981-10-30 1981-10-30 レトロフオ−カス型広角写真レンズ Granted JPS5876806A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56173751A JPS5876806A (ja) 1981-10-30 1981-10-30 レトロフオ−カス型広角写真レンズ
US06/431,929 US4487485A (en) 1981-10-30 1982-09-30 Retrofocus wide-angle photographic lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56173751A JPS5876806A (ja) 1981-10-30 1981-10-30 レトロフオ−カス型広角写真レンズ

Publications (2)

Publication Number Publication Date
JPS5876806A JPS5876806A (ja) 1983-05-10
JPS6148129B2 true JPS6148129B2 (ja) 1986-10-22

Family

ID=15966451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56173751A Granted JPS5876806A (ja) 1981-10-30 1981-10-30 レトロフオ−カス型広角写真レンズ

Country Status (2)

Country Link
US (1) US4487485A (ja)
JP (1) JPS5876806A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513045A (en) * 1993-06-16 1996-04-30 Asahi Kogaku Kogyo Kabushiki Kaisha Fast aspherical lens system
US5557472A (en) * 1993-06-16 1996-09-17 Asahi Kogaku Kogyo Kabushiki Kaisha Fast aspherical lens system
US5477389A (en) * 1993-06-18 1995-12-19 Asahi Kogaku Kogyo Kabushiki Kaisha Fast ultra-wide angle lens system
JP3444454B2 (ja) * 1995-06-29 2003-09-08 富士写真光機株式会社 広角レンズ
KR100189069B1 (ko) * 1996-03-29 1999-06-01 이해규 소형 광각 사진 렌즈
JP4574257B2 (ja) * 2004-07-15 2010-11-04 富士フイルム株式会社 大口径広角レンズ
CN113552696B (zh) * 2021-07-15 2023-11-07 江西晶超光学有限公司 光学系统、取像模组及电子设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1497596A1 (de) * 1966-10-22 1969-03-27 Schneider Co Optische Werke Photographisches oder kinematographisches Weitwinkelobjektiv mit langer bildseitiger Schnittweite
US4382662A (en) * 1979-06-08 1983-05-10 Minolta Camera Co., Ltd. Inverted telephoto type wide angle lens system

Also Published As

Publication number Publication date
US4487485A (en) 1984-12-11
JPS5876806A (ja) 1983-05-10

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