FR2203230B1 - - Google Patents

Info

Publication number
FR2203230B1
FR2203230B1 FR7336557A FR7336557A FR2203230B1 FR 2203230 B1 FR2203230 B1 FR 2203230B1 FR 7336557 A FR7336557 A FR 7336557A FR 7336557 A FR7336557 A FR 7336557A FR 2203230 B1 FR2203230 B1 FR 2203230B1
Authority
FR
France
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
Application number
FR7336557A
Other versions
FR2203230A1 (fr
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
Publication of FR2203230A1 publication Critical patent/FR2203230A1/fr
Application granted granted Critical
Publication of FR2203230B1 publication Critical patent/FR2203230B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • 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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Exposure Control For Cameras (AREA)
  • Electronic Switches (AREA)
FR7336557A 1972-10-13 1973-10-12 Expired FR2203230B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11830172U JPS4974829U (fr) 1972-10-13 1972-10-13

Publications (2)

Publication Number Publication Date
FR2203230A1 FR2203230A1 (fr) 1974-05-10
FR2203230B1 true FR2203230B1 (fr) 1976-06-18

Family

ID=14733277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336557A Expired FR2203230B1 (fr) 1972-10-13 1973-10-12

Country Status (4)

Country Link
JP (1) JPS4974829U (fr)
DE (1) DE2351192C3 (fr)
FR (1) FR2203230B1 (fr)
GB (1) GB1447525A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5421330A (en) * 1977-07-18 1979-02-17 Konishiroku Photo Ind Co Ltd Power source resetting method in cameras
JPS5421329A (en) * 1977-07-18 1979-02-17 Hitachi Ltd Control system for cameras
JPS5540420A (en) * 1978-09-14 1980-03-21 Nippon Kogaku Kk <Nikon> Power supply control circuit of camera
JPS5542821U (fr) * 1978-09-14 1980-03-19
JPS5669724U (fr) * 1979-11-02 1981-06-09
ATE405880T1 (de) * 2004-02-03 2008-09-15 High Tech Comp Corp Störungsresistente berührungsempfindliche fläche unter verwendung der kapazitanz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS446459Y1 (fr) * 1966-04-25 1969-03-10
US3588525A (en) * 1966-12-16 1971-06-28 Hitachi Ltd Chattering preventing circuit
DE1728239A1 (de) * 1968-02-21 1972-03-09 Lanata Gio Batta Gelenkwerkzeug,insbesondere Gelenkschraubenzieher

Also Published As

Publication number Publication date
DE2351192B2 (de) 1977-10-13
DE2351192C3 (de) 1978-06-08
JPS4974829U (fr) 1974-06-28
DE2351192A1 (de) 1974-05-02
GB1447525A (en) 1976-08-25
FR2203230A1 (fr) 1974-05-10

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