DE2549675A1 - Kurzbrennweitiges optisches system mit hoher lichtstaerke - Google Patents

Kurzbrennweitiges optisches system mit hoher lichtstaerke

Info

Publication number
DE2549675A1
DE2549675A1 DE19752549675 DE2549675A DE2549675A1 DE 2549675 A1 DE2549675 A1 DE 2549675A1 DE 19752549675 DE19752549675 DE 19752549675 DE 2549675 A DE2549675 A DE 2549675A DE 2549675 A1 DE2549675 A1 DE 2549675A1
Authority
DE
Germany
Prior art keywords
optical system
focal length
elements
short focal
light intensity
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
DE19752549675
Other languages
German (de)
English (en)
Inventor
Andor A Fleischman
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.)
Bell and Howell Co
Original Assignee
Bell and 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 and Howell Co filed Critical Bell and Howell Co
Publication of DE2549675A1 publication Critical patent/DE2549675A1/de
Pending 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
DE19752549675 1974-11-11 1975-11-05 Kurzbrennweitiges optisches system mit hoher lichtstaerke Pending DE2549675A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/522,797 US3942877A (en) 1974-11-11 1974-11-11 Short focal length Petzval-type optical system

Publications (1)

Publication Number Publication Date
DE2549675A1 true DE2549675A1 (de) 1976-05-13

Family

ID=24082397

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752549675 Pending DE2549675A1 (de) 1974-11-11 1975-11-05 Kurzbrennweitiges optisches system mit hoher lichtstaerke

Country Status (4)

Country Link
US (1) US3942877A (enExample)
JP (1) JPS5165951A (enExample)
DE (1) DE2549675A1 (enExample)
NL (1) NL7512852A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932981A1 (de) * 1978-08-17 1980-02-21 Olympus Optical Co Wiedergabeobjektiv fuer bildplatten
DE3016739A1 (de) * 1979-05-04 1980-11-06 Olympus Optical Co Wiedergabeobjektiv fuer bildplatten

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065205A (en) * 1976-07-27 1977-12-27 Bell & Howell Company Short focal length optical system with large aperture
US4256374A (en) * 1979-04-02 1981-03-17 Mca Discovision, Inc. Write and read objective lens for high density storage
JPS57144512A (en) * 1981-03-03 1982-09-07 Konishiroku Photo Ind Co Ltd Objective lens for reproduction of video disk
RU2260824C1 (ru) * 2003-07-23 2005-09-20 Открытое Акционерное Общество "Пеленг" Объектив

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744445A (en) * 1953-11-04 1956-05-08 Paillard Sa Photographic and projection objective of the petzval type
US3450463A (en) * 1964-09-04 1969-06-17 Nippon Kogaku Kk Photographic objective for precision copying
US3623791A (en) * 1970-01-08 1971-11-30 Olympus Optical Co Ultrawide field eyepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932981A1 (de) * 1978-08-17 1980-02-21 Olympus Optical Co Wiedergabeobjektiv fuer bildplatten
DE3016739A1 (de) * 1979-05-04 1980-11-06 Olympus Optical Co Wiedergabeobjektiv fuer bildplatten

Also Published As

Publication number Publication date
NL7512852A (nl) 1976-05-13
JPS5165951A (en) 1976-06-08
US3942877A (en) 1976-03-09

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