JPS61138912A - 望遠マクロレンズのフオ−カシイング方式 - Google Patents

望遠マクロレンズのフオ−カシイング方式

Info

Publication number
JPS61138912A
JPS61138912A JP26139984A JP26139984A JPS61138912A JP S61138912 A JPS61138912 A JP S61138912A JP 26139984 A JP26139984 A JP 26139984A JP 26139984 A JP26139984 A JP 26139984A JP S61138912 A JPS61138912 A JP S61138912A
Authority
JP
Japan
Prior art keywords
lens
lens group
stop
focusing
aperture
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.)
Granted
Application number
JP26139984A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6331764B2 (enExample
Inventor
Takayuki Ito
孝之 伊藤
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 JP26139984A priority Critical patent/JPS61138912A/ja
Publication of JPS61138912A publication Critical patent/JPS61138912A/ja
Publication of JPS6331764B2 publication Critical patent/JPS6331764B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP26139984A 1984-12-11 1984-12-11 望遠マクロレンズのフオ−カシイング方式 Granted JPS61138912A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26139984A JPS61138912A (ja) 1984-12-11 1984-12-11 望遠マクロレンズのフオ−カシイング方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26139984A JPS61138912A (ja) 1984-12-11 1984-12-11 望遠マクロレンズのフオ−カシイング方式

Publications (2)

Publication Number Publication Date
JPS61138912A true JPS61138912A (ja) 1986-06-26
JPS6331764B2 JPS6331764B2 (enExample) 1988-06-27

Family

ID=17361322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26139984A Granted JPS61138912A (ja) 1984-12-11 1984-12-11 望遠マクロレンズのフオ−カシイング方式

Country Status (1)

Country Link
JP (1) JPS61138912A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01316714A (ja) * 1988-06-17 1989-12-21 Sigma:Kk マクロレンズ
US6091903A (en) * 1997-12-04 2000-07-18 Asahi Kogaku Kabushiki Kaisha Macro lens system
US6154324A (en) * 1997-12-04 2000-11-28 Asahi Kogaku Kogyo Kabushiki Kaisha Macro lens system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255639A (en) * 1975-09-30 1977-05-07 Nippon Chemical Ind Telephoto lens
JPS578515A (en) * 1980-06-19 1982-01-16 Canon Inc Zoom lens
JPS59159118A (ja) * 1983-03-01 1984-09-08 Canon Inc リアフオ−カス型レンズ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5255639A (en) * 1975-09-30 1977-05-07 Nippon Chemical Ind Telephoto lens
JPS578515A (en) * 1980-06-19 1982-01-16 Canon Inc Zoom lens
JPS59159118A (ja) * 1983-03-01 1984-09-08 Canon Inc リアフオ−カス型レンズ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01316714A (ja) * 1988-06-17 1989-12-21 Sigma:Kk マクロレンズ
US6091903A (en) * 1997-12-04 2000-07-18 Asahi Kogaku Kabushiki Kaisha Macro lens system
US6154324A (en) * 1997-12-04 2000-11-28 Asahi Kogaku Kogyo Kabushiki Kaisha Macro lens system

Also Published As

Publication number Publication date
JPS6331764B2 (enExample) 1988-06-27

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees