JPS50141641U - - Google Patents
Info
- Publication number
- JPS50141641U JPS50141641U JP1974051645U JP5164574U JPS50141641U JP S50141641 U JPS50141641 U JP S50141641U JP 1974051645 U JP1974051645 U JP 1974051645U JP 5164574 U JP5164574 U JP 5164574U JP S50141641 U JPS50141641 U JP S50141641U
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
-
- 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)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1974051645U JPS5339548Y2 (US08124630-20120228-C00102.png) | 1974-05-09 | 1974-05-09 | |
| US05/573,396 US3975747A (en) | 1974-05-09 | 1975-05-01 | Off-photometric-range indicator for exposure meter |
| DE19752520181 DE2520181B2 (de) | 1974-05-09 | 1975-05-06 | Vorrichtung zur anzeige einer ausserhalb des photometrischen bereichs liegenden belichtung |
| US05/796,659 USRE29615E (en) | 1974-05-09 | 1977-05-13 | Off-photometric-range indicator for exposure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1974051645U JPS5339548Y2 (US08124630-20120228-C00102.png) | 1974-05-09 | 1974-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50141641U true JPS50141641U (US08124630-20120228-C00102.png) | 1975-11-21 |
| JPS5339548Y2 JPS5339548Y2 (US08124630-20120228-C00102.png) | 1978-09-26 |
Family
ID=12892576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1974051645U Expired JPS5339548Y2 (US08124630-20120228-C00102.png) | 1974-05-09 | 1974-05-09 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3975747A (US08124630-20120228-C00102.png) |
| JP (1) | JPS5339548Y2 (US08124630-20120228-C00102.png) |
| DE (1) | DE2520181B2 (US08124630-20120228-C00102.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1549689A (en) * | 1975-07-28 | 1979-08-08 | Nippon Kogaku Kk | Voltage generating circuit |
| US4571051A (en) * | 1984-02-06 | 1986-02-18 | Nippon Kogaku K.K. | Display device of a camera |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1597057C3 (de) * | 1967-06-23 | 1974-02-14 | Agfa-Gevaert Ag, 5090 Leverkusen | Fotografische Kamera mit einem Messwerk |
| JPS5038331B1 (US08124630-20120228-C00102.png) * | 1971-03-03 | 1975-12-09 | ||
| US3818495A (en) * | 1972-02-28 | 1974-06-18 | Fuji Photo Optical Co Ltd | Exposure value indicating means for photographic camera |
-
1974
- 1974-05-09 JP JP1974051645U patent/JPS5339548Y2/ja not_active Expired
-
1975
- 1975-05-01 US US05/573,396 patent/US3975747A/en not_active Expired - Lifetime
- 1975-05-06 DE DE19752520181 patent/DE2520181B2/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5339548Y2 (US08124630-20120228-C00102.png) | 1978-09-26 |
| US3975747A (en) | 1976-08-17 |
| DE2520181B2 (de) | 1977-02-10 |
| DE2520181A1 (de) | 1975-11-27 |
