JPS6132655B2 - - Google Patents

Info

Publication number
JPS6132655B2
JPS6132655B2 JP56157009A JP15700981A JPS6132655B2 JP S6132655 B2 JPS6132655 B2 JP S6132655B2 JP 56157009 A JP56157009 A JP 56157009A JP 15700981 A JP15700981 A JP 15700981A JP S6132655 B2 JPS6132655 B2 JP S6132655B2
Authority
JP
Japan
Prior art keywords
lens
positive
negative
lenses
focal length
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
JP56157009A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5858516A (ja
Inventor
Satoru Tachihara
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP15700981A priority Critical patent/JPS5858516A/ja
Publication of JPS5858516A publication Critical patent/JPS5858516A/ja
Publication of JPS6132655B2 publication Critical patent/JPS6132655B2/ja
Granted 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
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP15700981A 1981-10-02 1981-10-02 非球面を用いた大口径比広角写真レンズ Granted JPS5858516A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15700981A JPS5858516A (ja) 1981-10-02 1981-10-02 非球面を用いた大口径比広角写真レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15700981A JPS5858516A (ja) 1981-10-02 1981-10-02 非球面を用いた大口径比広角写真レンズ

Publications (2)

Publication Number Publication Date
JPS5858516A JPS5858516A (ja) 1983-04-07
JPS6132655B2 true JPS6132655B2 (US07993877-20110809-P00003.png) 1986-07-28

Family

ID=15640179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15700981A Granted JPS5858516A (ja) 1981-10-02 1981-10-02 非球面を用いた大口径比広角写真レンズ

Country Status (1)

Country Link
JP (1) JPS5858516A (US07993877-20110809-P00003.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330685U (US07993877-20110809-P00003.png) * 1986-08-12 1988-02-29

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920215A (US07993877-20110809-P00003.png) * 1972-06-15 1974-02-22
JPS4928336A (US07993877-20110809-P00003.png) * 1972-07-04 1974-03-13
JPS5254456A (en) * 1975-10-29 1977-05-02 Nippon Chemical Ind Wide angle zoom lens syste
JPS52152250A (en) * 1976-05-10 1977-12-17 Asahi Optical Co Ltd Zoom lens system
JPS5339759A (en) * 1976-09-22 1978-04-11 Asahi Optical Co Ltd Small sized bright wide zoom lens
JPS53135658A (en) * 1977-04-30 1978-11-27 Asahi Optical Co Ltd Zoom lens including ultraawide lens
JPS5415733A (en) * 1977-06-10 1979-02-05 Asahi Optical Co Ltd Lowwmagnification variableeangleelens system
JPS5560911A (en) * 1978-11-01 1980-05-08 Mamiya Koki Kk Wide angle zoom lens

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4920215A (US07993877-20110809-P00003.png) * 1972-06-15 1974-02-22
JPS4928336A (US07993877-20110809-P00003.png) * 1972-07-04 1974-03-13
JPS5254456A (en) * 1975-10-29 1977-05-02 Nippon Chemical Ind Wide angle zoom lens syste
JPS52152250A (en) * 1976-05-10 1977-12-17 Asahi Optical Co Ltd Zoom lens system
JPS5339759A (en) * 1976-09-22 1978-04-11 Asahi Optical Co Ltd Small sized bright wide zoom lens
JPS53135658A (en) * 1977-04-30 1978-11-27 Asahi Optical Co Ltd Zoom lens including ultraawide lens
JPS5415733A (en) * 1977-06-10 1979-02-05 Asahi Optical Co Ltd Lowwmagnification variableeangleelens system
JPS5560911A (en) * 1978-11-01 1980-05-08 Mamiya Koki Kk Wide angle zoom lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6330685U (US07993877-20110809-P00003.png) * 1986-08-12 1988-02-29

Also Published As

Publication number Publication date
JPS5858516A (ja) 1983-04-07

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