JPS63131464U - - Google Patents
Info
- Publication number
- JPS63131464U JPS63131464U JP2387887U JP2387887U JPS63131464U JP S63131464 U JPS63131464 U JP S63131464U JP 2387887 U JP2387887 U JP 2387887U JP 2387887 U JP2387887 U JP 2387887U JP S63131464 U JPS63131464 U JP S63131464U
- Authority
- JP
- Japan
- Prior art keywords
- iris
- pass filter
- solid
- signal processing
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案によるテレビカメラ装置の説明
図、第２図は本考案によるテレビカメラ装置にお
ける他の実施例の説明図、第３図は従来のテレビ
カメラ装置のシステムブロツク図、第４図ａ，ｂ
は従来のテレビカメラ装置の動作説明図である。
Ｓ……テレビカメラ装置、１ｂ……来訪者、２
……光学レンズ、３……オートアイリス、４……
固体撮像素子、５……サンプルホールド回路、６
……ローパスフイルター、９……アイリス信号処
理回路、１０……アイリスアンプ、１１……タイ
ミングパルス発生回路。
FIG. 1 is an explanatory diagram of a television camera device according to the present invention, FIG. 2 is an explanatory diagram of another embodiment of the television camera device according to the present invention, FIG. 3 is a system block diagram of a conventional television camera device, and FIG. 4 is an explanatory diagram of another embodiment of the television camera device according to the present invention. a, b
1 is an explanatory diagram of the operation of a conventional television camera device. S...TV camera device, 1b...Visitor, 2
...Optical lens, 3...Auto iris, 4...
Solid-state image sensor, 5...Sample and hold circuit, 6
...Low pass filter, 9 ... Iris signal processing circuit, 10 ... Iris amplifier, 11 ... Timing pulse generation circuit.
Claims (1)
光学レンズからの映像光を絞るオートアイリス、
前記オートアイリスで絞られた映像光を取り込む
固体撮像素子を順に配置し、前記固体撮像素子の
出力をサンプリングするサンプルホールド回路、
前記サンプルホールド回路に接続されビデオ信号
以外の不要信号を除去するローパスフイルター、
前記ローパスフイルターからの映像出力レベルに
応じた制御信号を出力するアイリス信号処理回路
、前記アイリス信号処理回路に接続され前記オー
トアイリスの駆動信号を作り出すアイリスアンプ
を順に接続し、さらに前記固体撮像素子および前
記サンプルホールド回路を駆動するのに必要な各
種パルスを発生させるタイミングパルス発生回路
を設け、前記タイミングパルス発生回路は前記視
野のうち予め設定された被写体範囲を走査させる
タイミングパルスで前記アイリス信号処理回路を
駆動し、前記ローパスフイルターからの映像出力
レベルに応じた制御信号を前記アイリスアンプに
印加し前記オートアイリスを制御するようにした
ことを特徴とするテレビカメラ装置。 an optical lens that introduces image light from the field of view; an auto iris that narrows down the image light from the optical lens;
a sample hold circuit that sequentially arranges solid-state image sensors that take in the image light focused by the auto iris, and samples the output of the solid-state image sensors;
a low pass filter connected to the sample hold circuit and removing unnecessary signals other than the video signal;
An iris signal processing circuit that outputs a control signal according to the video output level from the low-pass filter, an iris amplifier that is connected to the iris signal processing circuit and generates a drive signal for the auto iris, and further connected to the solid-state image sensor and the A timing pulse generation circuit is provided that generates various pulses necessary to drive the sample and hold circuit, and the timing pulse generation circuit activates the iris signal processing circuit with timing pulses that scan a preset subject range in the field of view. The television camera apparatus is characterized in that the auto iris is controlled by applying a control signal corresponding to a video output level from the low-pass filter to the iris amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2387887U JPS63131464U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2387887U JPS63131464U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63131464U true JPS63131464U (en) | 1988-08-29 |
Family
ID=30822591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2387887U Pending JPS63131464U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63131464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07162542A (en) * | 1993-12-03 | 1995-06-23 | Hitachi Ltd | Monitoring equipment |
-
1987
- 1987-02-20 JP JP2387887U patent/JPS63131464U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07162542A (en) * | 1993-12-03 | 1995-06-23 | Hitachi Ltd | Monitoring equipment |
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