JPS6168574U - - Google Patents
Info
- Publication number
- JPS6168574U JPS6168574U JP15286384U JP15286384U JPS6168574U JP S6168574 U JPS6168574 U JP S6168574U JP 15286384 U JP15286384 U JP 15286384U JP 15286384 U JP15286384 U JP 15286384U JP S6168574 U JPS6168574 U JP S6168574U
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- iris
- voltage source
- reference level
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Description
第１図は本考案のアイリス制御装置の一実施例
を示すブロツク図、第２図は従来のアイリス制御
装置を示すブロツク図である。
１……レンズ、２……アイリス、３……固体撮
像素子、４……信号処理回路、５……積分回路、
６……主比較器、７……垂直帰線期間ゲート回路
、８……積分回路、９……副比較器、１０……ア
イリス基準レベル用直流電圧源。
FIG. 1 is a block diagram showing an embodiment of the iris control device of the present invention, and FIG. 2 is a block diagram showing a conventional iris control device. 1...Lens, 2...Iris, 3...Solid-state image sensor, 4...Signal processing circuit, 5...Integrator circuit,
6... Main comparator, 7... Vertical retrace period gate circuit, 8... Integrating circuit, 9... Sub comparator, 10... DC voltage source for iris reference level.
Claims (1)
段と、 該信号処理手段の出力からスメアー信号成分を
検出する検出手段と、 アイリス基準レベル用直流電圧源と、 該アイリス基準レベル用直流電圧源の出力レベ
ルと前記検出手段により検出されたスメアー信号
成分のレベルとを比較し、スメアー信号成分のレ
ベルがアイリス基準レベル用直流電圧源の出力レ
ベルよりオーバーした場合はそのオーバー分を出
力し、スメアー信号成分のレベルがアイリス基準
レベル用直流電圧源の出力レベル以下の場合はア
イリス基準レベル用直流電圧源の出力をそのまま
出力する比較手段と、 該比較手段の出力と前記信号処理手段の出力と
を比較してこれら両出力のレベル差がなくなるよ
うにアイリスを制御する制御手段を備えたことを
特徴とするビデオカメラのアイリス制御装置。[Claims for Utility Model Registration] A video camera using a solid-state image sensor, comprising: a signal processing means for processing an output signal of the solid-state image sensor; a detection means for detecting a smear signal component from the output of the signal processing means; and an iris. The output level of the reference level DC voltage source and the iris reference level DC voltage source are compared with the level of the smear signal component detected by the detection means, and the level of the smear signal component is determined by the iris reference level DC voltage source. If the level of the smear signal component exceeds the output level of the DC voltage source for the iris reference level, the output level of the smear signal component is lower than the output level of the DC voltage source for the iris reference level, and the output of the DC voltage source for the iris reference level is directly output. An iris control device for a video camera, comprising: a control means for comparing the output of the comparison means and the output of the signal processing means and controlling the iris so that there is no difference in level between the two outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15286384U JPS6168574U (en) | 1984-10-09 | 1984-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15286384U JPS6168574U (en) | 1984-10-09 | 1984-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6168574U true JPS6168574U (en) | 1986-05-10 |
Family
ID=30710909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15286384U Pending JPS6168574U (en) | 1984-10-09 | 1984-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168574U (en) |
-
1984
- 1984-10-09 JP JP15286384U patent/JPS6168574U/ja active Pending
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