GB1525249A - Photographic camera - Google Patents

Photographic camera

Info

Publication number
GB1525249A
GB1525249A GB40481/75A GB4048175A GB1525249A GB 1525249 A GB1525249 A GB 1525249A GB 40481/75 A GB40481/75 A GB 40481/75A GB 4048175 A GB4048175 A GB 4048175A GB 1525249 A GB1525249 A GB 1525249A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
energizes
scales
lights
oct
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
Application number
GB40481/75A
Other languages
English (en)
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 GB1525249A publication Critical patent/GB1525249A/en
Expired legal-status Critical Current

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
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
    • 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
    • G03B7/087—Analogue circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Stroboscope Apparatuses (AREA)
GB40481/75A 1974-10-04 1975-10-03 Photographic camera Expired GB1525249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1974120083U JPS5147238U (enrdf_load_stackoverflow) 1974-10-04 1974-10-04

Publications (1)

Publication Number Publication Date
GB1525249A true GB1525249A (en) 1978-09-20

Family

ID=14777471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40481/75A Expired GB1525249A (en) 1974-10-04 1975-10-03 Photographic camera

Country Status (3)

Country Link
JP (1) JPS5147238U (enrdf_load_stackoverflow)
DE (2) DE2544330A1 (enrdf_load_stackoverflow)
GB (1) GB1525249A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426275A1 (fr) * 1978-05-19 1979-12-14 Canon Kk Appareil photographique comportant un obturateur a programme

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750177A1 (de) * 1976-11-24 1978-06-01 Minolta Camera Kk Anzeigevorrichtung fuer eine kamera
JPS54145525A (en) * 1978-05-08 1979-11-13 Fuji Photo Optical Co Ltd Display device in finder of camera
JPS5579085A (en) * 1978-12-11 1980-06-14 Kyoritsu Yuki Kogyo Kenkyusho:Kk Floating separator for waste water
JPS61271019A (ja) * 1985-05-25 1986-12-01 Matsushita Electric Works Ltd 気泡発生方法
JPH0494728A (ja) * 1990-08-10 1992-03-26 Noboru Sakano 無閉塞エアレーション汚泥縮少装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4121320Y1 (enrdf_load_stackoverflow) * 1966-05-04 1966-10-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426275A1 (fr) * 1978-05-19 1979-12-14 Canon Kk Appareil photographique comportant un obturateur a programme

Also Published As

Publication number Publication date
JPS5147238U (enrdf_load_stackoverflow) 1976-04-08
DE2544330A1 (de) 1976-04-08
DE7531454U (de) 1978-03-09

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee