GB2131198A - Wide angle lens having four lenses - Google Patents

Wide angle lens having four lenses Download PDF

Info

Publication number
GB2131198A
GB2131198A GB08326660A GB8326660A GB2131198A GB 2131198 A GB2131198 A GB 2131198A GB 08326660 A GB08326660 A GB 08326660A GB 8326660 A GB8326660 A GB 8326660A GB 2131198 A GB2131198 A GB 2131198A
Authority
GB
United Kingdom
Prior art keywords
lens
lens group
fno
astigmatism
spherical aberration
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.)
Withdrawn
Application number
GB08326660A
Other languages
English (en)
Other versions
GB8326660D0 (en
Inventor
Shozo Ishiyama
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of GB8326660D0 publication Critical patent/GB8326660D0/en
Publication of GB2131198A publication Critical patent/GB2131198A/en
Withdrawn legal-status Critical Current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
    • 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)
GB08326660A 1982-10-06 1983-10-05 Wide angle lens having four lenses Withdrawn GB2131198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57174467A JPS5964809A (ja) 1982-10-06 1982-10-06 広角レンズ

Publications (2)

Publication Number Publication Date
GB8326660D0 GB8326660D0 (en) 1983-11-09
GB2131198A true GB2131198A (en) 1984-06-13

Family

ID=15978989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08326660A Withdrawn GB2131198A (en) 1982-10-06 1983-10-05 Wide angle lens having four lenses

Country Status (3)

Country Link
JP (1) JPS5964809A (enrdf_load_html_response)
DE (1) DE3336433A1 (enrdf_load_html_response)
GB (1) GB2131198A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966251A (en) * 1997-03-26 1999-10-12 Fuji Photo Optical Co., Ltd. Imaging lens
RU2183341C1 (ru) * 2000-10-26 2002-06-10 Открытое акционерное общество "Красногорский завод им. С.А. Зверева" Светосильный объектив

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688906A (en) * 1985-12-30 1987-08-25 Capitol Records Three dimensional reflex lens systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618360A (en) * 1946-10-25 1949-02-21 Eastman Kodak Co Improvements in or relating to photographic objectives
GB1454044A (en) * 1973-01-26 1976-10-27 Minnesota Mining & Mfg Camera
GB2036366A (en) * 1978-11-28 1980-06-25 Olympus Optical Co Lens system having four elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618360A (en) * 1946-10-25 1949-02-21 Eastman Kodak Co Improvements in or relating to photographic objectives
GB1454044A (en) * 1973-01-26 1976-10-27 Minnesota Mining & Mfg Camera
GB2036366A (en) * 1978-11-28 1980-06-25 Olympus Optical Co Lens system having four elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966251A (en) * 1997-03-26 1999-10-12 Fuji Photo Optical Co., Ltd. Imaging lens
RU2183341C1 (ru) * 2000-10-26 2002-06-10 Открытое акционерное общество "Красногорский завод им. С.А. Зверева" Светосильный объектив

Also Published As

Publication number Publication date
JPH0250445B2 (enrdf_load_html_response) 1990-11-02
JPS5964809A (ja) 1984-04-12
GB8326660D0 (en) 1983-11-09
DE3336433A1 (de) 1984-04-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)