JPH01198184A - Image pickup device - Google Patents
Image pickup deviceInfo
- Publication number
- JPH01198184A JPH01198184A JP63023070A JP2307088A JPH01198184A JP H01198184 A JPH01198184 A JP H01198184A JP 63023070 A JP63023070 A JP 63023070A JP 2307088 A JP2307088 A JP 2307088A JP H01198184 A JPH01198184 A JP H01198184A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- charge accumulation
- accumulation time
- switching circuit
- image pickup
- 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
- 238000009825 accumulation Methods 0.000 claims abstract description 33
- 230000008054 signal transmission Effects 0.000 claims abstract description 7
- 238000003384 imaging method Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 101000857682 Homo sapiens Runt-related transcription factor 2 Proteins 0.000 description 1
- 102100025368 Runt-related transcription factor 2 Human genes 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ＣＣＤ撮像素子の受光時間、すなわち、光電
変換部を構成するフォトダイオードの電荷蓄積時間を外
部から電気信号を入力することによシ切り換えることが
可能な撮像装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to switching the light receiving time of a CCD image sensor, that is, the charge accumulation time of a photodiode constituting a photoelectric conversion section by inputting an external electrical signal. The present invention relates to an imaging device capable of
従来の技術
近年、ＣＣＤ撮像素子の高感度、高画素化に伴ない、撮
像管を用いた従来の撮像装置に代わり民生用、産業用の
両分野に於いてＣＣＤ撮像素子を用いた撮像装置が急速
に成長している。更にＣＣＤ撮像素子の駆動方法の特性
を生かした高速電子シャッタ機能が多く用いられるよう
になってきた。Background of the Invention In recent years, as CCD imaging devices have become more sensitive and have higher pixel counts, imaging devices using CCD imaging devices have replaced conventional imaging devices using image pickup tubes in both consumer and industrial fields. is growing rapidly. Furthermore, a high-speed electronic shutter function that takes advantage of the characteristics of the driving method of a CCD image pickup device has come into widespread use.
通常、ＣＣＤ撮像素子は、光電変更部を構成するフォト
ダイオードに１ ／６０ （１１５０）秒の時間に蓄積
された電荷を電荷読出しパルスによって読み出し、映像
信号として出力する。（以下、本動作を通常動作と略記
する。）この場合、高速で移動する被写体を撮像すると
、１／６０（１１５０）秒のフォトダイオードの電荷蓄
積時間内に被写体が移動するため、静止画像では鮮明な
画像が得られなかった。これに対し、高速電子シャッタ
動作は、１ ／６０ １７１０００秒間に蓄積した電荷
を垂直ブランキング期間内に不要電荷として掃き出し、
その後垂直ブランキング期間内の１／１ｏ００秒の時間
に蓄積された電荷を映像信号として出力する。Normally, a CCD image sensor reads out the charge accumulated in a photodiode constituting a photoelectric change unit in a time of 1/60 (1150) seconds using a charge readout pulse, and outputs it as a video signal. (Hereinafter, this operation will be abbreviated as normal operation.) In this case, when capturing an image of a subject moving at high speed, the subject moves within the photodiode charge accumulation time of 1/60 (1150) seconds, so a still image cannot be captured. A clear image could not be obtained. On the other hand, high-speed electronic shutter operation sweeps out the charges accumulated during 1/60 171,000 seconds as unnecessary charges within the vertical blanking period.
Thereafter, the charges accumulated during a time of 1/1o00 seconds within the vertical blanking period are output as a video signal.
従って、高速で移動する被写体を撮像した静止画でも；
ぶれのない鮮明な画像が得られる。この高速電子シャッ
タ機能は、特に、高速動作を撮像した静止画再生に用い
て非常に有効である。Therefore, even if a still image is taken of a subject moving at high speed;
You can get clear images without blur. This high-speed electronic shutter function is very effective, especially when used to reproduce still images captured in high-speed motion.
しかし、従来の高速電子シャッタ機能を具備した撮像装
置において採用されている通常動唐と高速電子シャッタ
機能の切り換え方式は、筐体内部あるいは筐体そのもの
に取部付けたスイッチによる切換方式であシ、遠隔操作
による切り換えが不可能であ）た。さらに、切り換えの
度に撮像装置を取部外す必要があった。However, the switching method used in conventional imaging devices equipped with a high-speed electronic shutter function between the normal dynamic shutter function and the high-speed electronic shutter function is a switching method using a switch installed inside the housing or on the housing itself. , switching by remote control was not possible). Furthermore, it was necessary to remove the imaging device each time the switching was performed.
発明が解決しようとする課題
前述のとおシ、従来の撮像装置では、ＣＣＤ撮像素子の
電荷蓄積時間を切り換える手段が筐体内部または筐体に
設けたスイッチであるため、離れた場所からの遠隔操作
が不可能であシ、また、切り換えのために多大な労力を
要していた。本発明は従来の撮像装置の不都合を排除す
る目的でなされたもので、外部から電気信号を装置へ入
力するだけで任意の時間に、しかも容易に電荷蓄積時間
の切り換えることが可能な機能を備えた撮像装置を提供
するものである。Problems to be Solved by the Invention As mentioned above, in conventional imaging devices, the means for switching the charge accumulation time of the CCD image sensor is a switch provided inside or on the casing, so remote control from a remote location is not possible. However, it is impossible to do so, and a great deal of effort is required for switching. The present invention was made with the aim of eliminating the inconveniences of conventional imaging devices, and has a function that allows the charge accumulation time to be easily switched to any desired time simply by inputting an external electrical signal to the device. The present invention provides an imaging device that has the following features.
課題を解決するための手段
本発明は、前述した不都合を排除するため、電荷蓄積時
間切換回路、入力信号を切換回路へ伝達する回路、およ
び外部から信号を入力するために筐体に設置した信号入
力用接栓を備えることによシ、撮像素子の電荷蓄積時間
を外部から電気信号で制御できるようにしたものである
。Means for Solving the Problems In order to eliminate the above-mentioned disadvantages, the present invention provides a charge accumulation time switching circuit, a circuit for transmitting an input signal to the switching circuit, and a signal installed in a housing for inputting signals from the outside. By providing an input plug, it is possible to control the charge accumulation time of the image sensor from the outside using an electrical signal.
作 用
この構成によれば、筐体に設置した接栓から電荷蓄積時
間切換信号を入力することで、任意の時間に、しかも遠
隔点からも電荷蓄積時間を切り換えか可能となる。Effect: According to this configuration, by inputting a charge accumulation time switching signal from a plug installed in the housing, it is possible to switch the charge accumulation time at any time and even from a remote point.
実施例
本発明の一実施例について図面を参照しながら以下に説
明する０図は、通常動作と１／１０００秒の高速電子シ
ャッタ動作の切り換えが可能な本発明の撮像装置の一実
施例を示すブロック図である。Embodiment An embodiment of the present invention will be described below with reference to the drawings. Figure 0 shows an embodiment of the imaging device of the present invention capable of switching between normal operation and 1/1000 second high-speed electronic shutter operation. It is a block diagram.
本発明の撮像装置は、レンズ１が取部付けられた筐体２
の中に、ＣＣＤ撮像素子３、これを駆動する駆動回路部
４、電荷蓄積時間切換回路部６、入力信号伝達回路部６
および同期信号発生と信号処理の機能をもつ回路部７と
が組み込まれておシ、入力信号伝達回路部６には信号入
力用接栓８から入力信号が印加され、ζこで波形整形さ
れて電荷蓄積時間切換回路部６へ入力される。なお、９
は電源入力用接栓、１０は映像信号出力用接栓である０
以上のように構成された本発明の撮像装置において、信
号入力用接栓８から入力信号伝達回路部６へ入力信号が
印加されると、この信号は波形整形されて電荷蓄積時間
切換回路部５へ伝達される。The imaging device of the present invention includes a housing 2 to which a lens 1 is attached.
Inside, there are a CCD image sensor 3, a drive circuit section 4 for driving it, a charge accumulation time switching circuit section 6, and an input signal transmission circuit section 6.
A circuit section 7 having functions of synchronizing signal generation and signal processing is incorporated, and an input signal is applied to the input signal transmission circuit section 6 from a signal input plug 8, and the waveform is shaped by the input signal transmission circuit section 6. The signal is input to the charge accumulation time switching circuit section 6. In addition, 9
10 is a power input connector, and 10 is a video signal output connector. In the imaging device of the present invention configured as described above, an input signal is applied from the signal input connector 8 to the input signal transmission circuit section 6. Then, this signal is waveform-shaped and transmitted to the charge accumulation time switching circuit section 5.
電荷蓄積時間切換回路部６は、伝達された信号によシＣ
ＣＤ撮像素子３の電荷蓄積時間を切り換える。外部から
電荷蓄積時間切換信号として、ハイレベＡ／（５Ｖ）の
信号が入力された場合にはＣＣＤ撮像素子５の電荷蓄積
時間が１／ＳＯ（または１１５０ ）秒となｐ、一方、
ローレペ／ｌ／（ＯＶ）の信号が入力された場合には電
荷蓄積時間が１／１０００秒の高速電子シャッタ動作と
なるように電荷蓄積時間切換回路部６を設定している。The charge accumulation time switching circuit section 6 switches between C and C according to the transmitted signal.
The charge accumulation time of the CD image sensor 3 is switched. When a high-level A/(5V) signal is input as a charge accumulation time switching signal from the outside, the charge accumulation time of the CCD image sensor 5 becomes 1/SO (or 1150) seconds.On the other hand,
The charge accumulation time switching circuit section 6 is set so that when a signal of LO RPE/l/(OV) is input, a high-speed electronic shutter operation is performed with a charge accumulation time of 1/1000 seconds.
従って、筐体２に設けた信号入力用接栓８に入力する信
号、すなわち電荷蓄積時間切換信号のレベルが、ハイレ
ベルトスるか、ローレベルとするかによってＣＣＤ撮像
素子３の電荷蓄積時間を通常動作（１／ＳＯまたは１１
５０秒）、および１／１０００秒の高速電子シャッタ動
作のどちらにでも切り換えることが可能である。Therefore, the charge accumulation time of the CCD image sensor 3 depends on whether the signal input to the signal input connector 8 provided in the housing 2, that is, the level of the charge accumulation time switching signal, is set to high level or low level. Normal operation (1/SO or 11
It is possible to switch to either high-speed electronic shutter operation (50 seconds) or 1/1000 second.
本実施例では、通常動作と１７１０００秒高填電子シャ
ッタ動作の２つの状態の切り換えについて説明を行なっ
たが、それ以上の切り換えについても、それに応じた切
換信号を入力することで電荷蓄積時間の切り換えが可能
なことは言うまでもない。In this example, switching between the two states of normal operation and 171,000 second high-load electronic shutter operation was explained, but for switching beyond that, the charge accumulation time can also be switched by inputting a corresponding switching signal. It goes without saying that this is possible.
発明の効果
以上のように、本発明の撮像装置は、ＣＣＤ撮像素子の
電荷蓄積時間を外部から電気信号を入力することで容易
に、しかも装置から離れた場所からの遠隔操作によシ切
り換えることが可能となるため自民牛用はもちろんのこ
と産業分野、とシわけ高速動作を撮像する必要かある装
置に適用して装置の性能をよシー層高めることができる
。Effects of the Invention As described above, in the imaging device of the present invention, the charge accumulation time of the CCD imaging element can be easily switched by inputting an electric signal from the outside, and moreover, by remote control from a location away from the device. This makes it possible to apply it not only to domestic cattle, but also to industrial fields, and especially to equipment that requires high-speed imaging, to greatly enhance the performance of the equipment.
図は、本発明の一実施例である撮像装置のブロック図で
ある。
１・・・・・・レンズ、２・山・・筐体、３・・・・・
・ＣＣＤ１像素子、４・・・・・・駆動回路部、５・・
・・・・電荷蓄積時間切換回路部、６・・・・・・入力
信号伝達回路部、７・・・・・・同期信号発生と信号処
理の機能をもつ回路部、８・・・・・・信号入力用接栓
、９・・・・・・電源入力用接栓、１゜・・・・・・映
像信号出力用接栓。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ｒ＝
−カメラ
２− ｘ 体
３−−− ＣＣＤ徴影素子
４−−−ｍ勤回路部
５−−−ｆｆｌＦ犯國需に１
９− 堂源幼肩後於
ｆＱ−紋ｊ＆値号切胃接栓
７ ルThe figure is a block diagram of an imaging device that is an embodiment of the present invention. 1...lens, 2...mountain, casing, 3...
・CCD1 image element, 4... Drive circuit section, 5...
...Charge accumulation time switching circuit section, 6...Input signal transmission circuit section, 7...Circuit section with synchronization signal generation and signal processing functions, 8...・Signal input connector, 9...Power input connector, 1゜...Video signal output connector. Name of agent: Patent attorney Toshio Nakao and 1 other person =
-Camera 2- 7 le
Claims (1)
切り換える電荷蓄積時間切換回路部と、同回路部へ入力
信号を伝達する入力信号伝達用回路部と、装置筐体に付
設された信号入力手段とを具備することを特徴とする撮
像装置。A CCD image sensor, a charge accumulation time switching circuit section for switching the charge accumulation time of the CCD image sensor, an input signal transmission circuit section for transmitting an input signal to the circuit section, and a signal input means attached to the device housing. An imaging device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63023070A JPH01198184A (en) | 1988-02-02 | 1988-02-02 | Image pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63023070A JPH01198184A (en) | 1988-02-02 | 1988-02-02 | Image pickup device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01198184A true JPH01198184A (en) | 1989-08-09 |
Family
ID=12100142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63023070A Pending JPH01198184A (en) | 1988-02-02 | 1988-02-02 | Image pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01198184A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414617A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Denshi Ltd | Television camera |
| JPS61192183A (en) * | 1985-02-20 | 1986-08-26 | Nec Corp | Solid-state image pick-up camera |
-
1988
- 1988-02-02 JP JP63023070A patent/JPH01198184A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414617A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Denshi Ltd | Television camera |
| JPS61192183A (en) * | 1985-02-20 | 1986-08-26 | Nec Corp | Solid-state image pick-up camera |
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