DE2342418C3 - Weitwinkelobjektiv vom Typ umgekehrter Teleobjektive mit großem Öffnungsverhältnis - Google Patents

Weitwinkelobjektiv vom Typ umgekehrter Teleobjektive mit großem Öffnungsverhältnis

Info

Publication number
DE2342418C3
DE2342418C3 DE19732342418 DE2342418A DE2342418C3 DE 2342418 C3 DE2342418 C3 DE 2342418C3 DE 19732342418 DE19732342418 DE 19732342418 DE 2342418 A DE2342418 A DE 2342418A DE 2342418 C3 DE2342418 C3 DE 2342418C3
Authority
DE
Germany
Prior art keywords
lens
angle lens
wide
aperture ratio
wide angle
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
DE19732342418
Other languages
German (de)
English (en)
Other versions
DE2342418B2 (de
DE2342418A1 (de
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE2342418A1 publication Critical patent/DE2342418A1/de
Publication of DE2342418B2 publication Critical patent/DE2342418B2/de
Application granted granted Critical
Publication of DE2342418C3 publication Critical patent/DE2342418C3/de
Expired 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)
DE19732342418 1972-08-23 1973-08-22 Weitwinkelobjektiv vom Typ umgekehrter Teleobjektive mit großem Öffnungsverhältnis Expired DE2342418C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47084315A JPS5123350B2 (enrdf_load_html_response) 1972-08-23 1972-08-23

Publications (3)

Publication Number Publication Date
DE2342418A1 DE2342418A1 (de) 1974-03-07
DE2342418B2 DE2342418B2 (de) 1976-05-20
DE2342418C3 true DE2342418C3 (de) 1982-01-14

Family

ID=13827061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732342418 Expired DE2342418C3 (de) 1972-08-23 1973-08-22 Weitwinkelobjektiv vom Typ umgekehrter Teleobjektive mit großem Öffnungsverhältnis

Country Status (2)

Country Link
JP (1) JPS5123350B2 (enrdf_load_html_response)
DE (1) DE2342418C3 (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135328A (en) * 1974-09-20 1976-03-25 Konishiroku Photo Ind Retorofuookasugatakokakurenzu
JPS6048012B2 (ja) * 1978-04-17 1985-10-24 キヤノン株式会社 小型のレトロフオ−カス型広角レンズ
DE4030958C1 (en) * 1990-10-01 1991-12-12 Isco-Optic Gmbh, 3400 Goettingen, De Wide angle objective lens with several partial groups - which have focal lengths, meeting specified formulae

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250153B (enrdf_load_html_response) * 1967-09-14

Also Published As

Publication number Publication date
JPS4940727A (enrdf_load_html_response) 1974-04-16
DE2342418B2 (de) 1976-05-20
JPS5123350B2 (enrdf_load_html_response) 1976-07-16
DE2342418A1 (de) 1974-03-07

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8380 Miscellaneous part iii

Free format text: DER VERTRETER LAUTET RICHTIG: ENDLICH, F., DIPL.-PHYS., PAT.-ANW., 8034 GERMERING

8381 Inventor (new situation)

Free format text: MOMIYAMA, KIKUO, CHOJU, TOKYO, JP AGARI, YUJIRO, TOKYO, JP