JPH0572529B2 - - Google Patents
Info
- Publication number
- JPH0572529B2 JPH0572529B2 JP59141791A JP14179184A JPH0572529B2 JP H0572529 B2 JPH0572529 B2 JP H0572529B2 JP 59141791 A JP59141791 A JP 59141791A JP 14179184 A JP14179184 A JP 14179184A JP H0572529 B2 JPH0572529 B2 JP H0572529B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- voltage
- light
- amount
- transistor
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 30
- 230000003287 optical effect Effects 0.000 claims description 25
- 230000010354 integration Effects 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005375 photometry Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 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
- G03B7/081—Analogue circuits
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59141791A JPS6120829A (ja) | 1984-07-09 | 1984-07-09 | 光積分回路 |
| DE19853524375 DE3524375A1 (de) | 1984-07-09 | 1985-07-08 | Lichtmessschaltung |
| US07/107,879 US4808811A (en) | 1984-07-09 | 1987-10-09 | Light integrating circuit for use in a light measuring device which is accurate for both low and high light values |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59141791A JPS6120829A (ja) | 1984-07-09 | 1984-07-09 | 光積分回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6120829A JPS6120829A (ja) | 1986-01-29 |
| JPH0572529B2 true JPH0572529B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-10-12 |
Family
ID=15300230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59141791A Granted JPS6120829A (ja) | 1984-07-09 | 1984-07-09 | 光積分回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6120829A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1984
- 1984-07-09 JP JP59141791A patent/JPS6120829A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6120829A (ja) | 1986-01-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |