NL7511862A - Optisch stelsel met korte brandpuntslengte en een grote apertuur. - Google Patents

Optisch stelsel met korte brandpuntslengte en een grote apertuur.

Info

Publication number
NL7511862A
NL7511862A NL7511862A NL7511862A NL7511862A NL 7511862 A NL7511862 A NL 7511862A NL 7511862 A NL7511862 A NL 7511862A NL 7511862 A NL7511862 A NL 7511862A NL 7511862 A NL7511862 A NL 7511862A
Authority
NL
Netherlands
Prior art keywords
optical system
focal length
large aperture
short focal
short
Prior art date
Application number
NL7511862A
Other languages
English (en)
Dutch (nl)
Original Assignee
Bell & Howell Co
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 Bell & Howell Co filed Critical Bell & Howell Co
Publication of NL7511862A publication Critical patent/NL7511862A/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • 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 -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
NL7511862A 1974-10-15 1975-10-09 Optisch stelsel met korte brandpuntslengte en een grote apertuur. NL7511862A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514336A US3915559A (en) 1974-10-15 1974-10-15 Short focal length large aperture optical system

Publications (1)

Publication Number Publication Date
NL7511862A true NL7511862A (nl) 1976-04-21

Family

ID=24046743

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7511862A NL7511862A (nl) 1974-10-15 1975-10-09 Optisch stelsel met korte brandpuntslengte en een grote apertuur.

Country Status (4)

Country Link
US (1) US3915559A (enExample)
JP (1) JPS5165648A (enExample)
DE (1) DE2545324A1 (enExample)
NL (1) NL7511862A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081207A (en) * 1976-07-01 1978-03-28 Cincinnati Electronics Corporation Scanning lens system
US4065205A (en) * 1976-07-27 1977-12-27 Bell & Howell Company Short focal length optical system with large aperture
JPS5526545A (en) * 1978-08-17 1980-02-26 Olympus Optical Co Ltd Reproducing lens for video disc
US4256374A (en) * 1979-04-02 1981-03-17 Mca Discovision, Inc. Write and read objective lens for high density storage
JPS55147605A (en) * 1979-05-04 1980-11-17 Olympus Optical Co Ltd Objective lens for video disc
JPS58208719A (ja) * 1982-05-28 1983-12-05 Asahi Optical Co Ltd 光デイスク用対物レンズ
US5650878A (en) * 1995-12-22 1997-07-22 Eastman Kodak Company Compact lens system and a method for making such
CN100541260C (zh) * 2003-11-13 2009-09-16 柯尼卡美能达精密光学株式会社 摄像透镜以及摄像装置
JP2007155868A (ja) * 2005-12-01 2007-06-21 Sony Corp 撮像レンズ及び撮像装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229930B2 (enExample) * 1972-08-03 1977-08-04

Also Published As

Publication number Publication date
DE2545324A1 (de) 1976-04-29
JPS5165648A (enExample) 1976-06-07
US3915559A (en) 1975-10-28

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