IT972631B - Automatismo di esposizione per fotocamere - Google Patents

Automatismo di esposizione per fotocamere

Info

Publication number
IT972631B
IT972631B IT33245/72A IT3324572A IT972631B IT 972631 B IT972631 B IT 972631B IT 33245/72 A IT33245/72 A IT 33245/72A IT 3324572 A IT3324572 A IT 3324572A IT 972631 B IT972631 B IT 972631B
Authority
IT
Italy
Prior art keywords
cameras
exposure automation
automation
exposure
Prior art date
Application number
IT33245/72A
Other languages
English (en)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT972631B publication Critical patent/IT972631B/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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Studio Devices (AREA)
IT33245/72A 1972-03-07 1972-12-20 Automatismo di esposizione per fotocamere IT972631B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2210958A DE2210958A1 (de) 1972-03-07 1972-03-07 Belichtungsautomatik fuer kameras

Publications (1)

Publication Number Publication Date
IT972631B true IT972631B (it) 1974-05-31

Family

ID=5838188

Family Applications (1)

Application Number Title Priority Date Filing Date
IT33245/72A IT972631B (it) 1972-03-07 1972-12-20 Automatismo di esposizione per fotocamere

Country Status (8)

Country Link
US (1) US3864701A (it)
JP (1) JPS48102617A (it)
BE (1) BE796412A (it)
DE (1) DE2210958A1 (it)
FR (1) FR2175389A7 (it)
GB (1) GB1404830A (it)
IT (1) IT972631B (it)
NL (1) NL7217217A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56251Y2 (it) * 1974-07-27 1981-01-07
US4358186A (en) * 1979-12-31 1982-11-09 Polaroid Corporation Method and apparatus for controlling exposure by selective use of blocking visible filter
US4474441A (en) * 1980-03-04 1984-10-02 Polaroid Corporation Method and apparatus for controlling exposure by selective use of blocking visible filter
US4542973A (en) * 1980-10-06 1985-09-24 Polaroid Corporation Dynamically controlled scene radiation leakage for exposure control
US5541706A (en) * 1992-10-22 1996-07-30 Nikon Corporation Exposure calculation device for a camera
EP3372357A1 (en) * 2017-03-10 2018-09-12 Koninklijke Philips N.V. Handheld personal care device and method of estimating a position and/or an orientation of a handheld personal device relative to a subject

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1497371C3 (de) * 1965-03-10 1974-01-10 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Regelung der Belichtungszeit von Kopiergeräten
JPS4837605B1 (it) * 1970-04-14 1973-11-12

Also Published As

Publication number Publication date
JPS48102617A (it) 1973-12-24
FR2175389A7 (it) 1973-10-19
DE2210958A1 (de) 1973-09-20
NL7217217A (it) 1973-09-11
BE796412A (fr) 1973-09-07
GB1404830A (en) 1975-09-03
US3864701A (en) 1975-02-04

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