JPS6485480A - Output device for image sensor - Google Patents
Output device for image sensorInfo
- Publication number
- JPS6485480A JPS6485480A JP62240878A JP24087887A JPS6485480A JP S6485480 A JPS6485480 A JP S6485480A JP 62240878 A JP62240878 A JP 62240878A JP 24087887 A JP24087887 A JP 24087887A JP S6485480 A JPS6485480 A JP S6485480A
- Authority
- JP
- Japan
- Prior art keywords
- brightness difference
- light
- image sensor
- small
- signal
- 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.)
- Granted
Links
- 230000003321 amplification Effects 0.000 abstract 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
Landscapes
- Automatic Focus Adjustment (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Focusing (AREA)
Abstract
PURPOSE:To obtain a highly accurate amplified output regardless of the degree of the contrast ratio of incident light by detecting the brightness difference of the light incident on an image sensor, and setting the amplification degree small when the brightness difference is large, and large when the brightness degree is small. CONSTITUTION:The brightness difference in the light incoming to the image sensor is obtained by a monitor means, and the amplification degree of a differential amplifying circuit 33 is set in accordance with the brightness difference beforehand. Thereafter, the video signal of the image sensor and the detecting signal of a minimum light detecting circuit 27 are inputted to the differential amplifying circuit 33. Then, the differential amplifying circuit 33 is constituted so that only the changed element of the video signal may be amplified, the signal may be outputted at the small amplification degree when the brightness difference in the light is large, and the signal may be outputted at the large amplification degree when the brightness difference in the light is small. Consequently, a digital conversion by an A/D converter is made easier, and the highly accurate converter output is obtained.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240878A JP2753704B2 (en) | 1987-09-28 | 1987-09-28 | Image sensor output device |
US07/248,983 US5008698A (en) | 1987-09-28 | 1988-09-26 | Control apparatus for image sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240878A JP2753704B2 (en) | 1987-09-28 | 1987-09-28 | Image sensor output device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6485480A true JPS6485480A (en) | 1989-03-30 |
JP2753704B2 JP2753704B2 (en) | 1998-05-20 |
Family
ID=17066041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62240878A Expired - Lifetime JP2753704B2 (en) | 1987-09-28 | 1987-09-28 | Image sensor output device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2753704B2 (en) |
-
1987
- 1987-09-28 JP JP62240878A patent/JP2753704B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2753704B2 (en) | 1998-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080306 Year of fee payment: 10 |