IT1046467B - Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculare - Google Patents

Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculare

Info

Publication number
IT1046467B
IT1046467B IT51874/72A IT5187472A IT1046467B IT 1046467 B IT1046467 B IT 1046467B IT 51874/72 A IT51874/72 A IT 51874/72A IT 5187472 A IT5187472 A IT 5187472A IT 1046467 B IT1046467 B IT 1046467B
Authority
IT
Italy
Prior art keywords
slr
refinement
exposure control
monocular cameras
control provisions
Prior art date
Application number
IT51874/72A
Other languages
English (en)
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 IT1046467B publication Critical patent/IT1046467B/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
    • 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
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
    • G03B7/17—Selection of modes in flash units by exposure control arrangements
    • 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
    • G03B9/70—Exposure-making shutters; Diaphragms with flash-synchronising contacts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)
  • Diaphragms For Cameras (AREA)
  • Focusing (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
IT51874/72A 1971-08-03 1972-07-29 Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculare IT1046467B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16867171A 1971-08-03 1971-08-03

Publications (1)

Publication Number Publication Date
IT1046467B true IT1046467B (it) 1980-06-30

Family

ID=22612453

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51874/72A IT1046467B (it) 1971-08-03 1972-07-29 Perfezionamento nelle disposizioni di controllo della esposizione per macchine fotografiche reflex monoculare

Country Status (6)

Country Link
JP (2) JPS4825521A (it)
CA (1) CA997190A (it)
DE (1) DE2237838C2 (it)
FR (1) FR2149857A6 (it)
GB (1) GB1391292A (it)
IT (1) IT1046467B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1450633A (en) * 1973-07-05 1976-09-22 Polaroid Corp Exposure control system
US3950766A (en) * 1974-11-22 1976-04-13 Polaroid Corporation Exposure control system employing blade sensing follow focus arrangement
US3972057A (en) * 1975-03-03 1976-07-27 Polaroid Corporation Exposure control system with follow focus capability
US3977014A (en) * 1975-03-03 1976-08-24 Polaroid Corporation Follow focus exposure control system with improved uniform trim control
JPS5617526Y2 (it) * 1977-02-14 1981-04-23
GB2261303B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zooming adjustment of a zoom lens
JP2550785B2 (ja) * 1991-02-08 1996-11-06 株式会社ダイフク レール敷設構造

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618933A (en) * 1979-07-23 1981-02-23 Kuraray Co Ltd Dihydroxy aluminum salt of substituted acetic acid and its preparation

Also Published As

Publication number Publication date
DE2237838C2 (de) 1982-09-23
AU4517572A (en) 1974-02-07
JPS4825521A (it) 1973-04-03
CA997190A (en) 1976-09-21
JPS6113568B2 (it) 1986-04-14
GB1391292A (en) 1975-04-23
DE2237838A1 (de) 1973-02-15
FR2149857A6 (it) 1973-03-30
JPS5882229A (ja) 1983-05-17

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