CH361678A - Selbsttätiger Belichtungsregler für Photokameras - Google Patents
Selbsttätiger Belichtungsregler für PhotokamerasInfo
- Publication number
- CH361678A CH361678A CH361678DA CH361678A CH 361678 A CH361678 A CH 361678A CH 361678D A CH361678D A CH 361678DA CH 361678 A CH361678 A CH 361678A
- Authority
- CH
- Switzerland
- Prior art keywords
- automatic exposure
- photo cameras
- exposure regulator
- regulator
- cameras
- Prior art date
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
- G03B7/18—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with light-reducing "factor" of filter or other obturator used with or on the lens of the camera
-
- 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
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US361678XA | 1958-02-21 | 1958-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH361678A true CH361678A (de) | 1962-04-30 |
Family
ID=21887028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH361678D CH361678A (de) | 1958-02-21 | 1958-05-16 | Selbsttätiger Belichtungsregler für Photokameras |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH361678A (de) |
GB (1) | GB892923A (de) |
-
1958
- 1958-02-18 GB GB5577/59A patent/GB892923A/en not_active Expired
- 1958-05-16 CH CH361678D patent/CH361678A/de unknown
Also Published As
Publication number | Publication date |
---|---|
GB892923A (en) | 1962-04-04 |
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