IT1003725B - Perfezionamento nei dispositivi di controllo della esposizione per ot turatori di apparecchi fotografici - Google Patents

Perfezionamento nei dispositivi di controllo della esposizione per ot turatori di apparecchi fotografici

Info

Publication number
IT1003725B
IT1003725B IT4907074A IT4907074A IT1003725B IT 1003725 B IT1003725 B IT 1003725B IT 4907074 A IT4907074 A IT 4907074A IT 4907074 A IT4907074 A IT 4907074A IT 1003725 B IT1003725 B IT 1003725B
Authority
IT
Italy
Prior art keywords
photographics
turns
improvement
control devices
exposure control
Prior art date
Application number
IT4907074A
Other languages
English (en)
Italian (it)
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of IT1003725B publication Critical patent/IT1003725B/it

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
    • 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
    • G03B7/095—Digital circuits for control of aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Control Of Stepping Motors (AREA)
  • Stroboscope Apparatuses (AREA)
IT4907074A 1973-05-22 1974-03-07 Perfezionamento nei dispositivi di controllo della esposizione per ot turatori di apparecchi fotografici IT1003725B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36266473A 1973-05-22 1973-05-22

Publications (1)

Publication Number Publication Date
IT1003725B true IT1003725B (it) 1976-06-10

Family

ID=23427023

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4907074A IT1003725B (it) 1973-05-22 1974-03-07 Perfezionamento nei dispositivi di controllo della esposizione per ot turatori di apparecchi fotografici

Country Status (8)

Country Link
JP (1) JPS571810B2 (cs)
CA (1) CA1019611A (cs)
DD (1) DD115230A5 (cs)
DE (1) DE2424030C2 (cs)
FR (1) FR2231030B1 (cs)
GB (1) GB1474038A (cs)
IT (1) IT1003725B (cs)
NL (1) NL7406583A (cs)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5747782Y2 (cs) * 1978-03-30 1982-10-20
JPS56101131A (en) * 1980-01-17 1981-08-13 Copal Co Ltd Driving circuit of electromagnetic shutter for single-lens reflex camera
JPS56134020U (cs) * 1980-12-26 1981-10-12
JPS58149026A (ja) * 1982-03-01 1983-09-05 Copal Co Ltd 電磁駆動プログラムシヤツタ−の制御回路
JPH0625837B2 (ja) * 1984-05-09 1994-04-06 株式会社精工舎 カメラ用シヤツタ
JPS63188678U (cs) * 1987-05-26 1988-12-02
JPS63312142A (ja) * 1987-06-15 1988-12-20 Sumitomo Bakelite Co Ltd 熱硬化性樹脂化粧板
JPH02106418U (cs) * 1989-02-04 1990-08-23
JP2015525372A (ja) 2012-05-29 2015-09-03 シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレーテッドＳｉｅｍｅｎｓ Ｈｅａｌｔｈｃａｒｅ Ｄｉａｇｎｏｓｔｉｃｓ Ｉｎｃ． 発光利用型サンプル分析機のためのシャッタアセンブリ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641889A (en) * 1970-09-02 1972-02-15 Polaroid Corp Exposure control system

Also Published As

Publication number Publication date
CA1019611A (en) 1977-10-25
AU6882574A (en) 1975-11-13
DE2424030A1 (de) 1974-12-12
GB1474038A (en) 1977-05-18
FR2231030B1 (cs) 1978-12-01
JPS5011432A (cs) 1975-02-05
FR2231030A1 (cs) 1974-12-20
DE2424030C2 (de) 1984-08-16
NL7406583A (cs) 1974-11-26
JPS571810B2 (cs) 1982-01-13
DD115230A5 (cs) 1975-09-12

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