JPH0319532B2 - - Google Patents
Info
- Publication number
- JPH0319532B2 JPH0319532B2 JP18472381A JP18472381A JPH0319532B2 JP H0319532 B2 JPH0319532 B2 JP H0319532B2 JP 18472381 A JP18472381 A JP 18472381A JP 18472381 A JP18472381 A JP 18472381A JP H0319532 B2 JPH0319532 B2 JP H0319532B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- shutter
- memory
- operational amplifier
- 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
- 238000005375 photometry Methods 0.000 claims description 25
- 230000004044 response Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 33
- 239000003990 capacitor Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- G03B7/091—Digital circuits
- G03B7/093—Digital circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18472381A JPS5886524A (ja) | 1981-11-18 | 1981-11-18 | Ｔｔｌ反射測光式カメラの露出時間記憶装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18472381A JPS5886524A (ja) | 1981-11-18 | 1981-11-18 | Ｔｔｌ反射測光式カメラの露出時間記憶装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5886524A JPS5886524A (ja) | 1983-05-24 |
| JPH0319532B2 true JPH0319532B2 (cs) | 1991-03-15 |
Family
ID=16158234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18472381A Granted JPS5886524A (ja) | 1981-11-18 | 1981-11-18 | Ｔｔｌ反射測光式カメラの露出時間記憶装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5886524A (cs) |
-
1981
- 1981-11-18 JP JP18472381A patent/JPS5886524A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5886524A (ja) | 1983-05-24 |
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