ES377232A1 - Dispositivo automatico de control de tiempo de exposicion para camaras. - Google Patents
Dispositivo automatico de control de tiempo de exposicion para camaras.Info
- Publication number
- ES377232A1 ES377232A1 ES377232A ES377232A ES377232A1 ES 377232 A1 ES377232 A1 ES 377232A1 ES 377232 A ES377232 A ES 377232A ES 377232 A ES377232 A ES 377232A ES 377232 A1 ES377232 A1 ES 377232A1
- Authority
- ES
- Spain
- Prior art keywords
- exposure time
- exposure
- indicator
- cameras
- control device
- 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
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)
- Indication In Cameras, And Counting Of Exposures (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1398069 | 1969-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES377232A1 true ES377232A1 (es) | 1972-06-01 |
Family
ID=11848354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES377232A Expired ES377232A1 (es) | 1969-02-26 | 1970-02-25 | Dispositivo automatico de control de tiempo de exposicion para camaras. |
Country Status (10)
Country | Link |
---|---|
US (1) | US3731603A (es) |
BE (1) | BE746571A (es) |
CA (1) | CA936731A (es) |
CH (1) | CH506802A (es) |
DE (1) | DE2009091C3 (es) |
ES (1) | ES377232A1 (es) |
FR (1) | FR2037428A5 (es) |
GB (1) | GB1311323A (es) |
NL (1) | NL151518B (es) |
SE (1) | SE354128B (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE28942E (en) * | 1970-04-07 | 1976-08-24 | Minolta Camera Kabushiki Kaisha | Exposure time control device for a through the lens type single reflex camera |
JPS5312808B2 (es) * | 1972-02-07 | 1978-05-04 | ||
JPS5442704Y2 (es) * | 1972-04-14 | 1979-12-11 | ||
JPS5724528B2 (es) * | 1972-05-22 | 1982-05-25 | ||
JPS4916423A (es) * | 1972-05-22 | 1974-02-13 | ||
JPS4921139A (es) * | 1972-06-15 | 1974-02-25 | ||
JPS5016933U (es) * | 1973-04-10 | 1975-02-22 | ||
US4037234A (en) * | 1973-04-28 | 1977-07-19 | Canon Kabushiki Kaisha | Exposure control system stabilized against temperature variation |
JPS56110921A (en) * | 1980-02-05 | 1981-09-02 | Sharp Corp | Electronic control shutter circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3528350A (en) * | 1966-08-24 | 1970-09-15 | Gossen & Co Gmbh P | Photoresistor circuit for light measuring arrangements |
US3520597A (en) * | 1967-03-29 | 1970-07-14 | Elmo Co Ltd | Control circuit for automatic stop device |
NL6708603A (es) * | 1967-06-21 | 1968-12-23 | ||
US3641890A (en) * | 1967-10-31 | 1972-02-15 | Nippon Kogaku Kk | Exposure-measuring device for cameras provided with electronic shutter |
-
1970
- 1970-02-25 SE SE02425/70A patent/SE354128B/xx unknown
- 1970-02-25 GB GB912570A patent/GB1311323A/en not_active Expired
- 1970-02-25 FR FR7006840A patent/FR2037428A5/fr not_active Expired
- 1970-02-25 ES ES377232A patent/ES377232A1/es not_active Expired
- 1970-02-26 CA CA075939A patent/CA936731A/en not_active Expired
- 1970-02-26 NL NL707002762A patent/NL151518B/xx not_active IP Right Cessation
- 1970-02-26 CH CH284970A patent/CH506802A/de not_active IP Right Cessation
- 1970-02-26 BE BE746571D patent/BE746571A/xx not_active IP Right Cessation
- 1970-02-26 DE DE2009091A patent/DE2009091C3/de not_active Expired
-
1971
- 1971-06-15 US US00156956A patent/US3731603A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3731603A (en) | 1973-05-08 |
DE2009091A1 (de) | 1970-09-10 |
DE2009091B2 (de) | 1973-09-06 |
GB1311323A (en) | 1973-03-28 |
CA936731A (en) | 1973-11-13 |
DE2009091C3 (de) | 1974-03-28 |
CH506802A (de) | 1971-04-30 |
NL151518B (nl) | 1976-11-15 |
FR2037428A5 (es) | 1970-12-31 |
BE746571A (fr) | 1970-07-31 |
SE354128B (es) | 1973-02-26 |
NL7002762A (es) | 1970-08-28 |
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