JPS61156377U - - Google Patents
Info
- Publication number
- JPS61156377U JPS61156377U JP3880085U JP3880085U JPS61156377U JP S61156377 U JPS61156377 U JP S61156377U JP 3880085 U JP3880085 U JP 3880085U JP 3880085 U JP3880085 U JP 3880085U JP S61156377 U JPS61156377 U JP S61156377U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- constant current
- current circuits
- transistor
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例を示すブロツク図で
ある。
ＲＲ，ＲＢ，ＲＧ：光導電体、ＱＲ，ＱＢ，Ｑ
Ｇ：トランジスタ、ＯＰ：信号発生回路、Ｌ：明
るさ検知用出力端子である。
FIG. 1 is a block diagram showing one embodiment of the present invention. RR, RB, RG: Photoconductor, QR, QB, Q
G: transistor, OP: signal generation circuit, L: output terminal for brightness detection.
Claims (1)
これ等とそれぞれ直列に接続された複数の定電流
回路と、上記光導電体の１個とその定電流回路と
の接続点での電圧値を一定に保つ信号を発生し、
この信号を上記各定電流回路に供給する信号発生
回路とよりなり、上記各定電流回路として、トラ
ンジスタをエミツタ接地でそのコレクタに上記対
応する光導電体を直列に接続し、そのベースに上
記信号発生回路からの出力を供給するようにした
カメラ用色温度補正装置において、上記信号発生
回路より上記各定電流回路に供給する輝度信号レ
ベルに対応した信号を取出す手段を設けたことを
特徴とするカメラ用色温度補正装置。 A plurality of photoconductors corresponding to each color channel and a plurality of constant current circuits connected in series with each of these, and a voltage value at a connection point between one of the photoconductors and the constant current circuit are kept constant. Generates a signal that keeps
The circuit consists of a signal generating circuit that supplies this signal to each of the above constant current circuits. As each of the above constant current circuits, a transistor is connected in series to its collector with the emitter of the transistor connected to the corresponding photoconductor, and the above-mentioned signal is connected to the base of each transistor. A color temperature correction device for a camera configured to supply an output from a generation circuit, further comprising means for extracting a signal corresponding to a luminance signal level supplied to each of the constant current circuits from the signal generation circuit. Color temperature correction device for cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3880085U JPH0321107Y2 (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3880085U JPH0321107Y2 (en) | 1985-03-20 | 1985-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61156377U true JPS61156377U (en) | 1986-09-27 |
| JPH0321107Y2 JPH0321107Y2 (en) | 1991-05-08 |
Family
ID=30546141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3880085U Expired JPH0321107Y2 (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321107Y2 (en) |
-
1985
- 1985-03-20 JP JP3880085U patent/JPH0321107Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0321107Y2 (en) | 1991-05-08 |
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