JPS61109277U - - Google Patents
Info
- Publication number
- JPS61109277U JPS61109277U JP19342784U JP19342784U JPS61109277U JP S61109277 U JPS61109277 U JP S61109277U JP 19342784 U JP19342784 U JP 19342784U JP 19342784 U JP19342784 U JP 19342784U JP S61109277 U JPS61109277 U JP S61109277U
- Authority
- JP
- Japan
- Prior art keywords
- color temperature
- temperature detection
- section
- detection section
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims 5
- 238000003384 imaging method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
- Radiation Pyrometers (AREA)
- Blocking Light For Cameras (AREA)
- Color Television Image Signal Generators (AREA)
Description
第１図は本考案における実施例のブロツク図。
第２図は従来のビデオカメラのブロツク図。第３
図は第１図の各部の信号のタイミングチヤート図
。第４図は断続回路と積分回路の回路図。
ｔ１……異常光の入射するタイミング、ｔ２…
…異常光の入射するタイミング、Ｓ１４……Ｓ１
３の論理値の反転した信号、１５……ＮＯＴ回路
、１６……ＮチヤンネルＭＯＳトランジスタ、１
７……ＰチヤンネルＭＯＳトランジスタ、１８…
…抵抗、１９……コンデンサー。
FIG. 1 is a block diagram of an embodiment of the present invention.
Figure 2 is a block diagram of a conventional video camera. Third
The figure is a timing chart of signals of each part in FIG. 1. Figure 4 is a circuit diagram of an intermittent circuit and an integrating circuit. t 1 ...timing of incidence of extraordinary light, t 2 ...
...timing of incidence of extraordinary light, S14 ... S1
Signal with inverted logic value of 3 , 15...NOT circuit, 16...N channel MOS transistor, 1
7...P channel MOS transistor, 18...
...Resistor, 19...Capacitor.
Claims (1)
光を前記撮像部に導く光学部、被写体およびその
周辺の光の色温度を検出する色温度検出部、前記
電気信号を処理する回路部より構成されるビデオ
カメラに於いて、前記色温度検出部の出力信号は
少なくとも静電容量と抵抗により構成される積分
回路を介して前記回路部に入力し、前記色温度検
出部はあらかじめ設定された時間間隔で動作と休
止をくり返し、該色温度検出部と前記積分回路の
接続抵抗は、前記色温度検出部の動作時に於いて
は、比較的抵低抵抗であり、前記色温度検出部の
休止時に於いては、比較的高抵抗であるよう構成
されたことを特徴とするビデオカメラ。 At least an imaging unit that converts light into an electrical signal;
In a video camera comprising an optical section that guides light to the imaging section, a color temperature detection section that detects the color temperature of light of a subject and its surroundings, and a circuit section that processes the electric signal, the color temperature detection section The output signal is input to the circuit section via an integrating circuit composed of at least a capacitance and a resistor, and the color temperature detection section repeats operation and rest at preset time intervals. and the connecting resistance of the integrating circuit are configured to have a relatively low resistance when the color temperature detection section is in operation, and have a relatively high resistance when the color temperature detection section is inactive. A video camera characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193427U JPH0617396Y2 (en) | 1984-12-20 | 1984-12-20 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193427U JPH0617396Y2 (en) | 1984-12-20 | 1984-12-20 | Video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109277U true JPS61109277U (en) | 1986-07-10 |
| JPH0617396Y2 JPH0617396Y2 (en) | 1994-05-02 |
Family
ID=30750850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984193427U Expired - Lifetime JPH0617396Y2 (en) | 1984-12-20 | 1984-12-20 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617396Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63292792A (en) * | 1987-05-25 | 1988-11-30 | Canon Inc | White balance device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572182A (en) * | 1980-06-04 | 1982-01-07 | Matsushita Electric Ind Co Ltd | Color television camera device |
| JPS5842380A (en) * | 1981-09-07 | 1983-03-11 | Matsushita Electric Ind Co Ltd | White balance adjusting device for color television camera |
-
1984
- 1984-12-20 JP JP1984193427U patent/JPH0617396Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572182A (en) * | 1980-06-04 | 1982-01-07 | Matsushita Electric Ind Co Ltd | Color television camera device |
| JPS5842380A (en) * | 1981-09-07 | 1983-03-11 | Matsushita Electric Ind Co Ltd | White balance adjusting device for color television camera |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63292792A (en) * | 1987-05-25 | 1988-11-30 | Canon Inc | White balance device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617396Y2 (en) | 1994-05-02 |
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