DE68921662D1 - Pulsgenerator-Schaltung zur Steuerung eines Kameraverschlusses. - Google Patents

Pulsgenerator-Schaltung zur Steuerung eines Kameraverschlusses.

Info

Publication number
DE68921662D1
DE68921662D1 DE68921662T DE68921662T DE68921662D1 DE 68921662 D1 DE68921662 D1 DE 68921662D1 DE 68921662 T DE68921662 T DE 68921662T DE 68921662 T DE68921662 T DE 68921662T DE 68921662 D1 DE68921662 D1 DE 68921662D1
Authority
DE
Germany
Prior art keywords
controlling
pulse generator
generator circuit
camera shutter
shutter
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 - Fee Related
Application number
DE68921662T
Other languages
English (en)
Other versions
DE68921662T2 (de
Inventor
Shinichi Intellectual P Hasebe
Masayuki Intellectual P Sasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE68921662D1 publication Critical patent/DE68921662D1/de
Publication of DE68921662T2 publication Critical patent/DE68921662T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/42—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/097—Digital circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Optical Transform (AREA)
  • Electronic Switches (AREA)
DE68921662T 1988-04-20 1989-04-20 Pulsgenerator-Schaltung zur Steuerung eines Kameraverschlusses. Expired - Fee Related DE68921662T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63097146A JPH0722256B2 (ja) 1988-04-20 1988-04-20 パルス発生回路

Publications (2)

Publication Number Publication Date
DE68921662D1 true DE68921662D1 (de) 1995-04-20
DE68921662T2 DE68921662T2 (de) 1995-07-27

Family

ID=14184433

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68921662T Expired - Fee Related DE68921662T2 (de) 1988-04-20 1989-04-20 Pulsgenerator-Schaltung zur Steuerung eines Kameraverschlusses.

Country Status (5)

Country Link
US (1) US4972078A (de)
EP (1) EP0338571B1 (de)
JP (1) JPH0722256B2 (de)
KR (1) KR920003448B1 (de)
DE (1) DE68921662T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168364A (en) * 1988-11-30 1992-12-01 Canon Kabushiki Kaisha Image sensing apparatus
US5325142A (en) * 1992-12-22 1994-06-28 Eastman Kodak Company Variable close loop controlled aperture/shutter system
US5285058A (en) * 1993-01-14 1994-02-08 Schlumberger Industries, Inc. Optical sensor control including the suspension of light radiation
US5438320A (en) * 1993-04-09 1995-08-01 Figgie International Inc. Personal alarm system
KR100227681B1 (ko) * 1994-07-18 1999-11-01 유무성 신호 안정부를 이용한 매뉴얼 포커싱 회로
US5706120A (en) * 1996-04-24 1998-01-06 Eastman Kodak Company Device for controlling an amount of light allowed to reach a photosensitive surface
JPH11213648A (ja) * 1998-01-27 1999-08-06 Mitsumi Electric Co Ltd フォトインタラプタ駆動回路
JP2011159494A (ja) * 2010-02-01 2011-08-18 Nakano Engineering Co Ltd 照度センサー付き照明器具

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053907A (en) * 1974-10-18 1977-10-11 West Electric Co., Ltd. Program-controlled shutter
US4591708A (en) * 1980-11-17 1986-05-27 Del Mar Avionics High-intensity opto-electronic sensor having low power consumption
JPS599566A (ja) * 1982-07-07 1984-01-18 Toshiba Corp 電圧検出装置
US4751543A (en) * 1983-12-01 1988-06-14 Canon Kabushiki Kaisha Control signal generator for camera
JPS62143034A (ja) * 1985-12-17 1987-06-26 Canon Inc ストロボ組込み可変焦点カメラ
JPH0524896Y2 (de) * 1986-12-26 1993-06-24
US4762992A (en) * 1987-06-10 1988-08-09 Kollmorgen Corporation Error detection system for two-state fiber optic sensors

Also Published As

Publication number Publication date
KR920003448B1 (ko) 1992-05-01
DE68921662T2 (de) 1995-07-27
EP0338571A3 (de) 1991-10-30
JPH01268308A (ja) 1989-10-26
KR890016760A (ko) 1989-11-30
JPH0722256B2 (ja) 1995-03-08
EP0338571B1 (de) 1995-03-15
EP0338571A2 (de) 1989-10-25
US4972078A (en) 1990-11-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee