JPS633265Y2 - - Google Patents
Info
- Publication number
- JPS633265Y2 JPS633265Y2 JP1982178604U JP17860482U JPS633265Y2 JP S633265 Y2 JPS633265 Y2 JP S633265Y2 JP 1982178604 U JP1982178604 U JP 1982178604U JP 17860482 U JP17860482 U JP 17860482U JP S633265 Y2 JPS633265 Y2 JP S633265Y2
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- image sensor
- video camera
- control circuit
- incident light
- 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.)
- Expired
Links
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、太陽光線等の強力な入射光により撮
像素子が焼付きを起こすのを防止したビデオカメ
ラに関するものである。[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a video camera that prevents image capture from occurring due to strong incident light such as sunlight.
〈従来技術〉
従来より、ビデオカメラは、その未使用時に
は、レンズ前面にレンズキヤツプが被せられ、さ
らに一部のビデオカメラではその内部に備えるシ
ヤツターを閉じたりして、撮像素子に入射光が当
たらないようにされている。<Prior Art> Conventionally, when a video camera is not in use, a lens cap is placed on the front of the lens, and in some video cameras, a shutter provided inside the camera is closed to prevent incident light from hitting the image sensor. It is made sure that there is no such thing.
〈考案が解決しようとする問題点〉
ところが、ビデオカメラを使用する際にレンズ
キヤツプを外し、電源を投入すると、前記ビデオ
カメラ内部のシヤツターが開いてしまい、特に撮
像素子に撮像管を用いたものではヒーターを加熱
して電子銃が作動し、出力信号が出るまでは、自
動絞り機構等が作動しないため強力な入射光に対
して無防備であり、太陽等の強力な入射光によつ
て撮像素子が焼付きを起す恐れがあつた。<Problem to be solved by the invention> However, when using a video camera, when the lens cap is removed and the power is turned on, the shutter inside the video camera opens, especially when using a video camera that uses an imaging tube as the imaging element. However, until the heater is heated and the electron gun is activated and an output signal is output, the automatic aperture mechanism etc. are not activated, so the image sensor is vulnerable to strong incident light. There was a risk of burn-in.
〈問題点を解決するための手段〉
本考案は上記欠点を除去するものであり、電源
投入後、撮像素子が動作を開始するまでシヤツタ
ーは開けないようにしたビデオカメラを提供する
ものである。<Means for Solving the Problems> The present invention eliminates the above-mentioned drawbacks and provides a video camera in which the shutter does not open until the image pickup device starts operating after the power is turned on.
〈実施例〉
以下、本考案の一実施例を図面に従つて説明す
ると、１は被写体からの入射光を示し、この入射
光はレンズ２により拡大、焦光される。５は撮像
素子である撮像管で、この前面にはシヤツター３
とバイアスライト４とが配置されている。そし
て、このシヤツター３は撮像管５の出力に接続さ
れるシヤツター制御回路６により、開閉動作がさ
れるものである。<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 indicates incident light from a subject, and this incident light is expanded and focused by a lens 2. 5 is an image pickup tube which is an image sensor, and a shutter 3 is installed in front of this tube.
and bias light 4 are arranged. The shutter 3 is opened and closed by a shutter control circuit 6 connected to the output of the image pickup tube 5.
上記構成によるビデオカメラでは、その電源投
入直後にバイアスライト４が点灯され、それと同
時に撮像管５のヒーターが加熱される。このヒー
ターが充分に加熱されるまで電子銃が働かないの
で、撮像管５の出力信号が出ず。シヤツター制御
回路６はシヤツター６を閉じたままにしている。
そしてしばらく後にヒーターが充分加熱され、電
子銃が動作すると撮像管５の出力よりバイアスラ
イト４の信号が出力され、これによつてシヤツタ
ー制御回路６はシヤツター３を開けるので、入射
光１が撮像管に到達しビデオカメラが使用できる
ものである。またシヤツター３が開かれると前記
バイアスライトは消灯され、またシヤツター制御
回路６は電源が切られるまでシヤツター３を開く
ように保持されているものである。 In the video camera configured as described above, the bias light 4 is turned on immediately after the power is turned on, and at the same time, the heater of the image pickup tube 5 is heated. Since the electron gun does not work until this heater is sufficiently heated, no output signal is output from the image pickup tube 5. Shutter control circuit 6 keeps shutter 6 closed.
After a while, when the heater is sufficiently heated and the electron gun is activated, the bias light 4 signal is output from the output of the image pickup tube 5, which causes the shutter control circuit 6 to open the shutter 3, so that the incident light 1 is transmitted to the image pickup tube. video camera can be used. Further, when the shutter 3 is opened, the bias light is turned off, and the shutter control circuit 6 is held to open the shutter 3 until the power is turned off.
〈効果〉
したがつて、撮像素子が動作可能状態になるま
で、シヤツターが開かれないので、撮像素子に入
射光が全く届かず、レンズキヤツプを被せ忘れて
も誤つて太陽光線等で撮像管を焼付かせることが
ないものであり、またバイアスライトの光量を調
節することにより、撮像管素子が十分動作するま
でウオームアツプをすることができ、出力信号が
安定した状態で取出すことが可能なものである。<Effect> Therefore, the shutter is not opened until the image sensor is ready for operation, so no incident light reaches the image sensor, and even if you forget to put the lens cap on, you can accidentally damage the image sensor tube with sunlight. It does not cause burn-in, and by adjusting the light intensity of the bias light, it is possible to warm up the image pickup tube element until it is fully operational, and it is possible to extract the output signal in a stable state. be.
以上のように本考案のビデオカメラでは、撮像
素子の前面に配置されるシヤツターと、この撮像
素子とシヤツターとの間に配置されるバイアスラ
イトと、撮像素子の出力信号により前記シヤツタ
ーを開閉するシヤツター制御回路とからなるもの
なので、ビデオカメラの未使用時及び電源投入直
後に入射光を撮像素子に届かないようにするので
強力な入射光による撮像素子の焼付けによる破損
を防止することができるものである。 As described above, the video camera of the present invention includes a shutter placed in front of the image sensor, a bias light placed between the image sensor and the shutter, and a shutter that opens and closes the shutter based on the output signal of the image sensor. Since it consists of a control circuit, it prevents incident light from reaching the image sensor when the video camera is not in use or immediately after the power is turned on, thereby preventing damage to the image sensor due to burn-in caused by strong incident light. be.
図面は本考案のビデオカメラの一実施例を示す
構成図である。
１……入射光、２……レンズ、３……シヤツタ
ー、４……バイアスライト、５……撮像素子、６
……シヤツター制御回路。
The drawing is a configuration diagram showing an embodiment of the video camera of the present invention. 1... Incident light, 2... Lens, 3... Shutter, 4... Bias light, 5... Image sensor, 6
...Shutter control circuit.
Claims (1)
の撮像素子とシヤツターの間に配置されるバイア
スライトと、撮像素子の出力信号により前記シヤ
ツターを開閉するシヤツター制御回路とからな
り、前記撮像素子の出力信号にバイアスライトの
光の出力信号が現われた際にシヤツター制御回路
によりシヤツターを開くことを特徴とするビデオ
カメラ。 It consists of a shutter placed in front of the image sensor, a bias light placed between the image sensor and the shutter, and a shutter control circuit that opens and closes the shutter based on the output signal of the image sensor. A video camera characterized in that a shutter is opened by a shutter control circuit when a bias light output signal appears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982178604U JPS5984961U (en) | 1982-11-25 | 1982-11-25 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982178604U JPS5984961U (en) | 1982-11-25 | 1982-11-25 | Video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5984961U JPS5984961U (en) | 1984-06-08 |
| JPS633265Y2 true JPS633265Y2 (en) | 1988-01-27 |
Family
ID=30387724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982178604U Granted JPS5984961U (en) | 1982-11-25 | 1982-11-25 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984961U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6890742B2 (en) | 1998-05-01 | 2005-05-10 | Gen-Probe Incorporated | Automated process for isolating and amplifying a target nucleic acid sequence |
| US7182912B2 (en) | 1991-03-04 | 2007-02-27 | Bayer Corporation | Fluid handling apparatus for an automated analyzer |
| US7547516B2 (en) | 2005-03-10 | 2009-06-16 | Gen-Probe Incorporated | Method for reducing the presence of amplification inhibitors in a reaction receptacle |
-
1982
- 1982-11-25 JP JP1982178604U patent/JPS5984961U/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182912B2 (en) | 1991-03-04 | 2007-02-27 | Bayer Corporation | Fluid handling apparatus for an automated analyzer |
| US7482143B2 (en) | 1998-05-01 | 2009-01-27 | Gen-Probe Incorporated | Automated process for detecting the presence of a target nucleic acid in a sample |
| US7118892B2 (en) | 1998-05-01 | 2006-10-10 | Gen-Probe Incorporated | Automated process for preparing and amplifying a target nucleic acid sequence |
| US7135145B2 (en) | 1998-05-01 | 2006-11-14 | Gen-Probe Incorporated | Device for agitating the fluid contents of a container |
| US7033820B2 (en) | 1998-05-01 | 2006-04-25 | Gen-Probe Incorporated | Automated system for isolating and amplifying a target nucleic acid sequence |
| US7396509B2 (en) | 1998-05-01 | 2008-07-08 | Gen-Probe Incorporated | Instrument for detecting light emitted by the contents of a reaction receptacle |
| US6890742B2 (en) | 1998-05-01 | 2005-05-10 | Gen-Probe Incorporated | Automated process for isolating and amplifying a target nucleic acid sequence |
| US7524652B2 (en) | 1998-05-01 | 2009-04-28 | Gen-Probe Incorporated | Automated process for detecting the presence of a target nucleic acid in a sample |
| US7560255B2 (en) | 1998-05-01 | 2009-07-14 | Gen-Probe Incorporated | Automated process for detecting the presence of a target nucleic acid in a sample |
| US7638337B2 (en) | 1998-05-01 | 2009-12-29 | Gen-Probe Incorporated | System for agitating the fluid contents of a container |
| US8883455B2 (en) | 1998-05-01 | 2014-11-11 | Gen-Probe Incorporated | Method for detecting the presence of a nucleic acid in a sample |
| US9150908B2 (en) | 1998-05-01 | 2015-10-06 | Gen-Probe Incorporated | Method for detecting the presence of a nucleic acid in a sample |
| US9598723B2 (en) | 1998-05-01 | 2017-03-21 | Gen-Probe Incorporated | Automated analyzer for performing a nucleic acid-based assay |
| US7547516B2 (en) | 2005-03-10 | 2009-06-16 | Gen-Probe Incorporated | Method for reducing the presence of amplification inhibitors in a reaction receptacle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5984961U (en) | 1984-06-08 |
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