JPH02107112U - - Google Patents

Info

Publication number
JPH02107112U
JPH02107112U JP1989014483U JP1448389U JPH02107112U JP H02107112 U JPH02107112 U JP H02107112U JP 1989014483 U JP1989014483 U JP 1989014483U JP 1448389 U JP1448389 U JP 1448389U JP H02107112 U JPH02107112 U JP H02107112U
Authority
JP
Japan
Prior art keywords
light
shielding
shielding wall
lens
frame
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
JP1989014483U
Other languages
English (en)
Other versions
JP2535031Y2 (ja
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 filed Critical
Priority to JP1989014483U priority Critical patent/JP2535031Y2/ja
Priority to US07/478,153 priority patent/US5343331A/en
Priority to FR9001409A priority patent/FR2642853B1/fr
Priority to GB9002795A priority patent/GB2228101B/en
Priority to DE4004010A priority patent/DE4004010C2/de
Publication of JPH02107112U publication Critical patent/JPH02107112U/ja
Application granted granted Critical
Publication of JP2535031Y2 publication Critical patent/JP2535031Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms

Landscapes

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

Description

【図面の簡単な説明】
第１図は、本考案のレンズ遮光枠の一実施例の
斜視図、第２図は、同実施例を適用したズームレ
ンズの実施例を、光軸を通る面で縦断して光軸の
上半分を示した断面図、第３図は、第１図の―
切断線に沿う断面図、第４図は後群支持枠の斜
視図である。 １０…ハウジング、１１…直線案内溝、１２…
カム環、１２ａ…前群カム溝、１２ｂ…後群カム
溝、１６…摺動環、１６ａ…直線ガイド溝、１７
…ガイドポール、２１…前群支持枠、２８…後群
支持枠、３０…遮光枠、３１…環状部、３２…遮
光壁、３３…切欠、３４…開口、３５…係止爪、
３６…エツジ、Ｌ１…前群レンズ、Ｌ２…後群レ
ンズ。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 結像光学系の最終面上またはその近傍に、
    径方向に延びる遮光壁を設け、この遮光壁の中央
    に、上記最終面を通り画面を形成する有効光束の
    最外側に沿う形状の開口を形成したことを特徴と
    するレンズの遮光枠。 (2) 請求項１において、遮光壁は、環状部に設
    けられていて、この環状部がレンズ支持枠に着脱
    可能であることを特徴とするレンズの遮光枠。 (3) 請求項１または２において、遮光壁に形成
    した開口の輪郭を規制する縁部は、少なくともそ
    の一部が先端に向かつて薄く形成されていること
    を特徴とするレンズの遮光枠。
JP1989014483U 1989-02-09 1989-02-09 レンズの遮光枠 Expired - Lifetime JP2535031Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1989014483U JP2535031Y2 (ja) 1989-02-09 1989-02-09 レンズの遮光枠
US07/478,153 US5343331A (en) 1989-02-09 1990-02-06 Light intercepting frame of lens
FR9001409A FR2642853B1 (fr) 1989-02-09 1990-02-07 Monture interceptrice de lumiere pour lentille
GB9002795A GB2228101B (en) 1989-02-09 1990-02-08 Image forming optical system with light intercepting frame of lens
DE4004010A DE4004010C2 (de) 1989-02-09 1990-02-09 Objektiv mit einer Blende zur Vermeidung von Streulicht und störenden Reflexen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989014483U JP2535031Y2 (ja) 1989-02-09 1989-02-09 レンズの遮光枠

Publications (2)

Publication Number Publication Date
JPH02107112U true JPH02107112U (ja) 1990-08-27
JP2535031Y2 JP2535031Y2 (ja) 1997-05-07

Family

ID=11862300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989014483U Expired - Lifetime JP2535031Y2 (ja) 1989-02-09 1989-02-09 レンズの遮光枠

Country Status (5)

Country Link
US (1) US5343331A (ja)
JP (1) JP2535031Y2 (ja)
DE (1) DE4004010C2 (ja)
FR (1) FR2642853B1 (ja)
GB (1) GB2228101B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527148A (ja) * 1991-07-24 1993-02-05 Canon Inc レンズ鏡筒

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107111U (ja) * 1989-02-09 1990-08-27
DE4132259A1 (de) * 1991-09-27 1993-04-01 Wild Heerbrugg Ag Ueberstrahlungsschutz fuer ein nachtsichtgeraet
JP2594825Y2 (ja) * 1992-12-04 1999-05-10 旭光学工業株式会社 レンズ鏡筒の遮光装置
US5604638A (en) * 1993-12-01 1997-02-18 Asahi Kogaku Kogyo Kabushiki Kaisha Anti-reflection structure for zoom lens barrel
JP3354406B2 (ja) * 1996-09-02 2002-12-09 富士写真光機株式会社 撮影レンズの駆動機構
US5940226A (en) * 1996-09-11 1999-08-17 Asahi Kogaku Kogyo Kabushiki Kaisha Light intercepting mechanism of a zoom lens barrel
GB2339646A (en) 1998-07-15 2000-02-02 Ericsson Telefon Ab L M Reduction of Interference between Radio Links
DE10049835C2 (de) * 2000-07-27 2003-04-03 Cobra Electronic Gmbh Miniaturisierte Kamera mit einer in einem stab- oder rohrförmigen Gehäuse angeordneten photosenitiven CCD-Matrix und einer integrierten Beleuchtungseinrichtung
JP3710724B2 (ja) * 2001-05-14 2005-10-26 大日本スクリーン製造株式会社 結像光学装置
JP2009217014A (ja) * 2008-03-11 2009-09-24 Canon Inc レンズ鏡筒および撮影装置
DE102018122475A1 (de) * 2018-09-14 2020-03-19 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Einstellbares Streulichtblendenmodul für ein kinematografisches Kamerasystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187411A (en) * 1981-05-11 1982-11-18 Kunihiro Ogiwara Device for holding automatically level of upstream water in aqua type rubber dam
JPS6231820A (ja) * 1985-08-02 1987-02-10 Olympus Optical Co Ltd 撮像装置
JPS6265010A (ja) * 1985-09-18 1987-03-24 Olympus Optical Co Ltd 内視鏡
JPS63160520A (ja) * 1986-12-23 1988-07-04 松下電工株式会社 植物育成促進用の光波長変換板

Family Cites Families (32)

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Publication number Priority date Publication date Assignee Title
US1950166A (en) * 1931-09-14 1934-03-06 Otto B Durholz Variable focus lens unit
GB562438A (en) * 1942-02-09 1944-07-03 Kodak Ltd Improvements in or relating to lens systems
GB664790A (en) * 1949-05-17 1952-01-09 Gainsborough Pictures 1928 Ltd Variable apertured viewfinder
NL6708010A (ja) * 1967-06-09 1968-12-10
US3809459A (en) * 1972-10-13 1974-05-07 Asahi Optical Co Ltd Antireflection coating for an inner surface of cemented lenses
AT318389B (de) * 1972-11-13 1974-10-10 Eumig Pankratisches Objektiv
JPS513337U (ja) * 1974-06-24 1976-01-12
DE7430725U (de) * 1974-09-12 1976-03-25 Kodak Ag, 7000 Stuttgart Mehrlinsiges objektiv
GB1467285A (en) * 1974-10-16 1977-03-16 Combined Optical Ind Ltd Multiple lens assembly
US4152064A (en) * 1975-09-18 1979-05-01 Canon Kabushiki Kaisha Diaphragm linkage device for interchangeable lens
JPS5841532Y2 (ja) * 1977-09-16 1983-09-20 旭光学工業株式会社 引伸しレンズ鏡胴
JPS5445125A (en) * 1977-09-16 1979-04-10 Asahi Optical Co Ltd Enlarging lens with stop down scale illuminating system
FR2438275A1 (fr) * 1978-10-06 1980-04-30 Telecommunications Sa Dispositif de reception et d'emission de signaux lumineux codes, et systeme iff comprenant ce dispositif
JPS5842443B2 (ja) * 1979-11-05 1983-09-20 マミヤ光機株式会社 ズ−ムレンズの有害光遮断装置
US4461547A (en) * 1981-03-13 1984-07-24 Olympus Optical Company, Ltd. Lens hood with an eccentrically disposed light intercepting body for a camera
JPS5838764A (ja) * 1981-08-31 1983-03-07 Pentel Kk 顔料の製造法
JPS5948513A (ja) * 1982-09-09 1984-03-19 Toshiba Kasei Kk あぜの構築方法
JPS59214810A (ja) * 1983-05-20 1984-12-04 Canon Inc レンズ鏡筒
GB2164470B (en) * 1984-09-14 1988-10-26 Michael Rodney Browning Iris device
US4747669A (en) * 1984-11-08 1988-05-31 Konishiroku Photo Industry Co., Ltd. Lens driving means in a camera
JPH0646255B2 (ja) * 1985-01-11 1994-06-15 キヤノン株式会社 副絞りを有したレンズ鏡筒
JPH0723949B2 (ja) * 1985-04-02 1995-03-15 キヤノン株式会社 カメラ
JPH0731294B2 (ja) * 1985-04-08 1995-04-10 キヤノン株式会社 レンズ鏡筒
JPS6331820A (ja) * 1986-07-25 1988-02-10 Nissan Motor Co Ltd 自動車のル−フ開口周縁部構造
JPS63160520U (ja) * 1987-04-06 1988-10-20
JPH01140136A (ja) * 1987-11-27 1989-06-01 Canon Inc レンズ鏡筒
JPH0618321Y2 (ja) * 1988-05-20 1994-05-11 旭光学工業株式会社 レンズシャッタ式カメラの遮光装置
FR2637989A1 (fr) * 1988-10-15 1990-04-20 Asahi Optical Co Ltd Ensemble d'objectif zoom pour appareil photographique et procede de commande de l'ensemble d'objectif zoom
JPH02107111U (ja) * 1989-02-09 1990-08-27
JPH0755525Y2 (ja) * 1989-02-10 1995-12-20 旭光学工業株式会社 レンズシャッタ式カメラのレンズ鏡筒の遮光装置
JPH0740986Y2 (ja) * 1989-05-24 1995-09-20 旭光学工業株式会社 遮光構造
US4992819A (en) * 1989-10-31 1991-02-12 Canon Kabushiki Kaisha Focus detecting device having a plurality of detecting areas and camera provided with the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187411A (en) * 1981-05-11 1982-11-18 Kunihiro Ogiwara Device for holding automatically level of upstream water in aqua type rubber dam
JPS6231820A (ja) * 1985-08-02 1987-02-10 Olympus Optical Co Ltd 撮像装置
JPS6265010A (ja) * 1985-09-18 1987-03-24 Olympus Optical Co Ltd 内視鏡
JPS63160520A (ja) * 1986-12-23 1988-07-04 松下電工株式会社 植物育成促進用の光波長変換板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527148A (ja) * 1991-07-24 1993-02-05 Canon Inc レンズ鏡筒

Also Published As

Publication number Publication date
FR2642853A1 (fr) 1990-08-10
US5343331A (en) 1994-08-30
DE4004010C2 (de) 1994-12-08
DE4004010A1 (de) 1990-08-16
JP2535031Y2 (ja) 1997-05-07
GB9002795D0 (en) 1990-04-04
GB2228101A (en) 1990-08-15
FR2642853B1 (fr) 1994-03-25
GB2228101B (en) 1993-09-08

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term