JPS62203574U - - Google Patents
Info
- Publication number
- JPS62203574U JPS62203574U JP1986092713U JP9271386U JPS62203574U JP S62203574 U JPS62203574 U JP S62203574U JP 1986092713 U JP1986092713 U JP 1986092713U JP 9271386 U JP9271386 U JP 9271386U JP S62203574 U JPS62203574 U JP S62203574U
- Authority
- JP
- Japan
- Prior art keywords
- image sensor
- control circuit
- solid
- subject
- temperature
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Description
第１図はこの考案に係るビデオカメラの一例を
示すブロツク図、第２図は被写体の明るさと最大
利得との関係を示す図、第３図は従来のビデオカ
メラの構成を示すブロツク図である。
３……固体撮像素子、４……自動利得制御回路
、１０……温度検出器。なお、図中同一符号は同
一もしくは相当部分を示す。
Figure 1 is a block diagram showing an example of a video camera according to this invention, Figure 2 is a diagram showing the relationship between the brightness of a subject and maximum gain, and Figure 3 is a block diagram showing the configuration of a conventional video camera. . 3... Solid-state image sensor, 4... Automatic gain control circuit, 10... Temperature detector. Note that the same reference numerals in the figures indicate the same or corresponding parts.
補正 昭６１．１１．１４
実用新案登録請求の範囲を次のように補正する
。Amendment November 14, 1981 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
被写体を結像する固体撮像素子と、固体撮像素
子からの出力信号を受けて被写体の明るさに反比
例して利得を制御する自動利得制御回路と、固体
撮像素子の温度ないしは同素子周辺の温度を検出
して自動利得制御回路の最大利得を上記検出温度
に逆比例して変化させる温度検出器とを備えたこ
とを特徴とするビデオカメラ。[Claim for Utility Model Registration] A solid-state image sensor that forms an image of a subject, an automatic gain control circuit that receives an output signal from the solid-state image sensor and controls gain in inverse proportion to the brightness of the subject, and a solid-state image sensor 1. A video camera comprising: a temperature detector which detects the temperature of or the temperature around the element and changes the maximum gain of an automatic gain control circuit in inverse proportion to the detected temperature.
Claims (1)
子からの出力信号を受けて被写体の明るさに反比
例して利得を制御する自動利得制御回路と、回体
撮像素子の温度を検出して自動利得制御回路の最
大利得を上記検出温度に逆比例して変化させる温
度検出器とを備えたことを特徴とするビデオカメ
ラ。 A solid-state image sensor that forms an image of the subject, an automatic gain control circuit that receives the output signal from the solid-state image sensor and controls the gain in inverse proportion to the brightness of the subject, and an automatic gain control circuit that detects the temperature of the rotating image sensor. A video camera comprising: a temperature detector that changes the maximum gain of the control circuit in inverse proportion to the detected temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986092713U JPH087743Y2 (en) | 1986-06-17 | 1986-06-17 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986092713U JPH087743Y2 (en) | 1986-06-17 | 1986-06-17 | Video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62203574U true JPS62203574U (en) | 1987-12-25 |
| JPH087743Y2 JPH087743Y2 (en) | 1996-03-04 |
Family
ID=30954659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986092713U Expired - Lifetime JPH087743Y2 (en) | 1986-06-17 | 1986-06-17 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087743Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4708959B2 (en) * | 2005-11-02 | 2011-06-22 | キヤノン株式会社 | Imaging apparatus and control method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276975A (en) * | 1985-09-30 | 1987-04-09 | Asahi Seimitsu Kk | Temperature compensating method for automatic diaphragm amplifier of cctv camera lens |
-
1986
- 1986-06-17 JP JP1986092713U patent/JPH087743Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6276975A (en) * | 1985-09-30 | 1987-04-09 | Asahi Seimitsu Kk | Temperature compensating method for automatic diaphragm amplifier of cctv camera lens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4708959B2 (en) * | 2005-11-02 | 2011-06-22 | キヤノン株式会社 | Imaging apparatus and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087743Y2 (en) | 1996-03-04 |
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