JPS5240131A - Lens blade open-and-close device - Google Patents

Lens blade open-and-close device

Info

Publication number
JPS5240131A
JPS5240131A JP11578275A JP11578275A JPS5240131A JP S5240131 A JPS5240131 A JP S5240131A JP 11578275 A JP11578275 A JP 11578275A JP 11578275 A JP11578275 A JP 11578275A JP S5240131 A JPS5240131 A JP S5240131A
Authority
JP
Japan
Prior art keywords
close device
blade open
lens blade
lug
lens
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
JP11578275A
Other languages
Japanese (ja)
Inventor
Shigeru Hashimoto
Akira Masuda
Katsuro Mochizuki
Akira Sato
Koji Takeuchi
Teruhisa Oda
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
Priority to JP11578275A priority Critical patent/JPS5240131A/en
Priority to US05/722,560 priority patent/US4152064A/en
Priority to DE2642005A priority patent/DE2642005C2/en
Publication of JPS5240131A publication Critical patent/JPS5240131A/en
Priority to US05/940,083 priority patent/US4226505A/en
Pending legal-status Critical Current

Links

Landscapes

  • Diaphragms For Cameras (AREA)

Abstract

PURPOSE: To miniaturize and reduce the number of parts by receiving a thrust action of a diaphragm drive ring with a depressor plate provided with a lug, and by providing a relief memger relative to the lug on the blade.
COPYRIGHT: (C)1977,JPO&Japio
JP11578275A 1975-09-18 1975-09-25 Lens blade open-and-close device Pending JPS5240131A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11578275A JPS5240131A (en) 1975-09-25 1975-09-25 Lens blade open-and-close device
US05/722,560 US4152064A (en) 1975-09-18 1976-09-13 Diaphragm linkage device for interchangeable lens
DE2642005A DE2642005C2 (en) 1975-09-18 1976-09-17 Interchangeable lens for a camera
US05/940,083 US4226505A (en) 1975-09-18 1978-09-06 Holding device for a lens of an interchangeable lens assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11578275A JPS5240131A (en) 1975-09-25 1975-09-25 Lens blade open-and-close device

Publications (1)

Publication Number Publication Date
JPS5240131A true JPS5240131A (en) 1977-03-28

Family

ID=14670916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11578275A Pending JPS5240131A (en) 1975-09-18 1975-09-25 Lens blade open-and-close device

Country Status (1)

Country Link
JP (1) JPS5240131A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118808U (en) * 1981-01-16 1982-07-23
JPS6150941U (en) * 1985-08-03 1986-04-05
JPS61121429U (en) * 1985-01-18 1986-07-31
JPS6296933A (en) * 1986-10-03 1987-05-06 Nippon Seimitsu Kogyo Kk Aperture device
JPS62143933U (en) * 1986-06-05 1987-09-10

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035502A (en) * 1959-07-07 1962-05-22 Agfa Ag Shutter housing for a camera having a central shutter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035502A (en) * 1959-07-07 1962-05-22 Agfa Ag Shutter housing for a camera having a central shutter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57118808U (en) * 1981-01-16 1982-07-23
JPS626964Y2 (en) * 1981-01-16 1987-02-18
JPS61121429U (en) * 1985-01-18 1986-07-31
JPS6232266Y2 (en) * 1985-01-18 1987-08-18
JPS6150941U (en) * 1985-08-03 1986-04-05
JPS62143933U (en) * 1986-06-05 1987-09-10
JPS6296933A (en) * 1986-10-03 1987-05-06 Nippon Seimitsu Kogyo Kk Aperture device

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