JPS57105702A - Reflection preventive structure of plastic lens - Google Patents

Reflection preventive structure of plastic lens

Info

Publication number
JPS57105702A
JPS57105702A JP18316180A JP18316180A JPS57105702A JP S57105702 A JPS57105702 A JP S57105702A JP 18316180 A JP18316180 A JP 18316180A JP 18316180 A JP18316180 A JP 18316180A JP S57105702 A JPS57105702 A JP S57105702A
Authority
JP
Japan
Prior art keywords
lens
supporting frame
surface part
circumferential surface
plastic lens
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
JP18316180A
Other languages
Japanese (ja)
Inventor
Yasuhiro Iwade
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP18316180A priority Critical patent/JPS57105702A/en
Publication of JPS57105702A publication Critical patent/JPS57105702A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Landscapes

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

Abstract

PURPOSE:To prevent flare and to constitute a lens system whose eccentric accuracy is high, by providing plural grooves on the circumferential surface part of a plastic lens and at least one side of the internal surface part of the lens supporting frame opposed to said circumferential surface part. CONSTITUTION:A reflection preventive means is formed by cutting plural grooves 6 on an outside circumferential surface 1a of a lens supporting part 1b of a plastic lens 1. When constituting a lens system by incorporating into a lens supporting frame 4, the lens supporting surface is supported so as to be opposed to the internal surface part of the lens supporting frame 4, and plastic lenses 1-3 are firmly fixed into the supporting frame 4. In this way, flare is prevented, and a lens system whose eccentric accuracy is high.
JP18316180A 1980-12-24 1980-12-24 Reflection preventive structure of plastic lens Pending JPS57105702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18316180A JPS57105702A (en) 1980-12-24 1980-12-24 Reflection preventive structure of plastic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18316180A JPS57105702A (en) 1980-12-24 1980-12-24 Reflection preventive structure of plastic lens

Publications (1)

Publication Number Publication Date
JPS57105702A true JPS57105702A (en) 1982-07-01

Family

ID=16130858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18316180A Pending JPS57105702A (en) 1980-12-24 1980-12-24 Reflection preventive structure of plastic lens

Country Status (1)

Country Link
JP (1) JPS57105702A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236752A (en) * 1985-08-09 1987-02-17 Olympus Optical Co Ltd Optical head
JPH06189986A (en) * 1992-09-28 1994-07-12 Iolab Corp Edge glare-reduced lens for ophthalmology
US6075661A (en) * 1999-01-26 2000-06-13 The United States Of America As Represented By The Secretary Of The Navy Adapter for objective lens of an optical instrument
EP1345061A2 (en) * 2002-03-06 2003-09-17 Leica Microsystems (Schweiz) AG Axially translatable threadless positionable holder for optical elements and the method of fabrication thereof
WO2010085437A1 (en) * 2009-01-22 2010-07-29 Itt Manufacturing Enterprises,Inc. Low stray light veiling glare objective lens for night vision systems
JP2015148829A (en) * 2011-08-25 2015-08-20 パナソニックＩｐマネジメント株式会社 plastic lens
JP2018189774A (en) * 2017-05-01 2018-11-29 富士フイルム株式会社 Lens and imaging apparatus
JP2021033268A (en) * 2019-08-13 2021-03-01 エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド Lens module

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6236752A (en) * 1985-08-09 1987-02-17 Olympus Optical Co Ltd Optical head
JPH06189986A (en) * 1992-09-28 1994-07-12 Iolab Corp Edge glare-reduced lens for ophthalmology
US6075661A (en) * 1999-01-26 2000-06-13 The United States Of America As Represented By The Secretary Of The Navy Adapter for objective lens of an optical instrument
EP1345061A2 (en) * 2002-03-06 2003-09-17 Leica Microsystems (Schweiz) AG Axially translatable threadless positionable holder for optical elements and the method of fabrication thereof
EP1345061A3 (en) * 2002-03-06 2004-11-03 Leica Microsystems (Schweiz) AG Axially translatable threadless positionable holder for optical elements and the method of fabrication thereof
WO2010085437A1 (en) * 2009-01-22 2010-07-29 Itt Manufacturing Enterprises,Inc. Low stray light veiling glare objective lens for night vision systems
JP2015148829A (en) * 2011-08-25 2015-08-20 パナソニックＩｐマネジメント株式会社 plastic lens
JP2018189774A (en) * 2017-05-01 2018-11-29 富士フイルム株式会社 Lens and imaging apparatus
JP2021033268A (en) * 2019-08-13 2021-03-01 エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド Lens module

Similar Documents

Publication Publication Date Title
IT1215851B (en) INTRAOCULAR LENS WITH CHROMATIC CORRECTION AND ABSORPTION DIAGRAM.
DE3751485D1 (en) Precision lens frame.
ATE126359T1 (en) PROGRESSIVE GOGGLES LENS.
NL187047B (en) INTRA-OCULAR LENS.
JPS5762052A (en) Original plate to be projected for use in transmission
DE69017063D1 (en) Engine monitor, equipped with knock detector.
NL180906C (en) INTRAOCULAR LENS SYSTEM.
JPS57178215A (en) Spectacle frame
JPS57105702A (en) Reflection preventive structure of plastic lens
JPS56149010A (en) Plastic lens
JPS57177115A (en) Projection lens device
JPS53131835A (en) Reflecting objective lens
NL186880C (en) OCULAR LENS SYSTEM.
JPS52105816A (en) Photographic lens of compact type having long back focus and large ape rture
JPS5232323A (en) Front iris large aperture ratio lens
ES516203A0 (en) IMPROVEMENTS INTRODUCED IN THE MANUFACTURE OF LAMINATED OPHTHALMIC LENSES.
JPS51149004A (en) Optical apparatus
JPS5384741A (en) Spectacle lens
JPS5417620A (en) Solid pickup element
JPS52140348A (en) Optical device for photo-processing
JPS53122426A (en) Projector
JPS52127327A (en) Foucsing lens system
JPS5238235A (en) Lens holder
JPS5417027A (en) Image forming system
JPS5434234A (en) Photographic wide angle lens