JPS5336228A - Lens stop device - Google Patents

Lens stop device

Info

Publication number
JPS5336228A
JPS5336228A JP11109376A JP11109376A JPS5336228A JP S5336228 A JPS5336228 A JP S5336228A JP 11109376 A JP11109376 A JP 11109376A JP 11109376 A JP11109376 A JP 11109376A JP S5336228 A JPS5336228 A JP S5336228A
Authority
JP
Japan
Prior art keywords
stop device
rotor
lens stop
magnetization
revolving
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
JP11109376A
Other languages
Japanese (ja)
Inventor
Katsuhiko Tsunefuji
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP11109376A priority Critical patent/JPS5336228A/en
Publication of JPS5336228A publication Critical patent/JPS5336228A/en
Pending legal-status Critical Current

Links

Landscapes

  • Diaphragms For Cameras (AREA)

Abstract

PURPOSE:Friction by magnetization is prevented and the entire unit smaller in size and light movement is accomplished by revolving a rotor within permanent magnets by applying the current corresponding to the f/stops to directly operate diaphragm blades and forming the bearing balls of the rotor with a non-magnetic material.
JP11109376A 1976-09-16 1976-09-16 Lens stop device Pending JPS5336228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11109376A JPS5336228A (en) 1976-09-16 1976-09-16 Lens stop device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11109376A JPS5336228A (en) 1976-09-16 1976-09-16 Lens stop device

Publications (1)

Publication Number Publication Date
JPS5336228A true JPS5336228A (en) 1978-04-04

Family

ID=14552193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11109376A Pending JPS5336228A (en) 1976-09-16 1976-09-16 Lens stop device

Country Status (1)

Country Link
JP (1) JPS5336228A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005274593A (en) * 2004-03-22 2005-10-06 Nidec Copal Corp Device for regulating light intensity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950927A (en) * 1972-09-14 1974-05-17
JPS4969132A (en) * 1972-11-01 1974-07-04
JPS4969131A (en) * 1972-11-01 1974-07-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950927A (en) * 1972-09-14 1974-05-17
JPS4969132A (en) * 1972-11-01 1974-07-04
JPS4969131A (en) * 1972-11-01 1974-07-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005274593A (en) * 2004-03-22 2005-10-06 Nidec Copal Corp Device for regulating light intensity

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