JPS6413529A - Multiprogram shutter - Google Patents

Multiprogram shutter

Info

Publication number
JPS6413529A
JPS6413529A JP16999987A JP16999987A JPS6413529A JP S6413529 A JPS6413529 A JP S6413529A JP 16999987 A JP16999987 A JP 16999987A JP 16999987 A JP16999987 A JP 16999987A JP S6413529 A JPS6413529 A JP S6413529A
Authority
JP
Japan
Prior art keywords
motor
switching switch
impressed voltage
previously set
switching
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
JP16999987A
Other languages
Japanese (ja)
Other versions
JP2585003B2 (en
Inventor
Hiroaki Ishida
Mitsuo Shinozaki
Shigeru Tagami
Katsuto Niwa
Michitaka Nakazawa
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP62169999A priority Critical patent/JP2585003B2/en
Priority to GB8813394A priority patent/GB2206699B/en
Priority to DE19883823086 priority patent/DE3823086A1/en
Publication of JPS6413529A publication Critical patent/JPS6413529A/en
Priority to HK83093A priority patent/HK83093A/en
Application granted granted Critical
Publication of JP2585003B2 publication Critical patent/JP2585003B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/14—Two separate members moving in opposite directions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To attain the smooth actuation of a motor and the precise control of exposure in respective programs by altering a voltage or a current which is supplied to a motor according to the selected program. CONSTITUTION:The number of pulses, pulse time and impressed voltage which are the driving condition of a step motor 12 are previously set in a control circuit 22 in order to obtain two programs, in one of which the relation between a shutter speed and a diaphragm is high speed and in another of which said relation is low speed according to the luminance information of an object from a photometry part and the switching information of a switching switch. Namely, among the driving conditions of the motor, the pulse time and the impressed voltage are selected according to the switching information of the switching switch 23. For example, supposing that a time when the switching switch 23 is in an open state is set as a high speed program, the previously set short pulse time and high impressed voltage are selected and when the switching switch 23 is in a close state, the previously set long pulse and short impressed voltage are selected. Thus, the smooth actuation of the motor can be executed and the accurate control of exposure can be executed according to the respective programs.
JP62169999A 1987-07-08 1987-07-08 Multi-program shutter Expired - Fee Related JP2585003B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62169999A JP2585003B2 (en) 1987-07-08 1987-07-08 Multi-program shutter
GB8813394A GB2206699B (en) 1987-07-08 1988-06-07 Multi-program shutter
DE19883823086 DE3823086A1 (en) 1987-07-08 1988-07-07 PROGRAMMED CAMERA SHUTTER
HK83093A HK83093A (en) 1987-07-08 1993-08-12 Multi-program shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62169999A JP2585003B2 (en) 1987-07-08 1987-07-08 Multi-program shutter

Publications (2)

Publication Number Publication Date
JPS6413529A true JPS6413529A (en) 1989-01-18
JP2585003B2 JP2585003B2 (en) 1997-02-26

Family

ID=15896711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62169999A Expired - Fee Related JP2585003B2 (en) 1987-07-08 1987-07-08 Multi-program shutter

Country Status (4)

Country Link
JP (1) JP2585003B2 (en)
DE (1) DE3823086A1 (en)
GB (1) GB2206699B (en)
HK (1) HK83093A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505753A (en) * 1994-09-12 1996-04-09 Heysek; Ralph G. Aircraft pneumatic air filter
US6547457B2 (en) 2000-09-22 2003-04-15 Nidec Copal Corporation Camera shutter unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283531U (en) * 1988-12-16 1990-06-28
US5155521A (en) * 1990-12-31 1992-10-13 Eastman Kodak Company Counter-driven shutter actuator control circuit
KR940010591B1 (en) * 1991-11-28 1994-10-24 삼성전자 주식회사 Automatic exposure apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225122A (en) * 1984-04-23 1985-11-09 Seiko Koki Kk Program shutter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462672A (en) * 1982-03-01 1984-07-31 Copal Company Limited Control circuit for an electromagnetically driven programming shutter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225122A (en) * 1984-04-23 1985-11-09 Seiko Koki Kk Program shutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505753A (en) * 1994-09-12 1996-04-09 Heysek; Ralph G. Aircraft pneumatic air filter
US6547457B2 (en) 2000-09-22 2003-04-15 Nidec Copal Corporation Camera shutter unit

Also Published As

Publication number Publication date
JP2585003B2 (en) 1997-02-26
GB2206699B (en) 1991-05-29
DE3823086A1 (en) 1989-01-19
GB2206699A (en) 1989-01-11
GB8813394D0 (en) 1988-07-13
HK83093A (en) 1993-08-20

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Legal Events

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