JPS6125144B2 - - Google Patents
Info
- Publication number
- JPS6125144B2 JPS6125144B2 JP53054328A JP5432878A JPS6125144B2 JP S6125144 B2 JPS6125144 B2 JP S6125144B2 JP 53054328 A JP53054328 A JP 53054328A JP 5432878 A JP5432878 A JP 5432878A JP S6125144 B2 JPS6125144 B2 JP S6125144B2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- zoom
- television camera
- speed
- zoom ratio
- 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
- 238000003384 imaging method Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Accessories Of Cameras (AREA)
Description
【発明の詳細な説明】
本発明はズームレンズを使用したテレビカメラ
を上下方向或いは左右方向に旋回させるテレビカ
メラ用回転台に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating stand for a television camera that rotates a television camera using a zoom lens vertically or horizontally.
テレビカメラを搭載して上下方向或いは左右方
向に遠隔制御で回転する回転台は、従来その旋回
速度が一定であるため、テレビカメラに電動ズー
ムレンズを使用した場合に、ズーム比によつては
テレビカメラ旋回中の画像を人間の目で正確に観
測できないという欠点を有していた。 Conventionally, the rotation speed of a rotary table mounted with a television camera that rotates vertically or horizontally by remote control is constant. This method has the disadvantage that the image while the camera is rotating cannot be accurately observed with the human eye.
本発明は上記した点に鑑みなされたもので、ズ
ームレンズのズーム比に応じてテレビカメラの旋
回速度を変化させることで、テレビカメラの旋回
により発生するモニタ画面中の被写体像の移動速
度を、ズーム比によらず略一定にしたテレビカメ
ラ用回転台を提供するものである。 The present invention has been made in view of the above points, and by changing the rotation speed of the television camera according to the zoom ratio of the zoom lens, the movement speed of the subject image on the monitor screen caused by the rotation of the television camera can be adjusted. To provide a rotating stand for a television camera which has a substantially constant zoom ratio regardless of the zoom ratio.
以下、図面を参照して本発明の実施例を説明す
る。第１図は電動ズームレンズがズーム比の検出
手段を有した本発明の一実施例を示すブロツク図
である。同図において、１は電動ズームレンズ、
２はズーム用モータ、３はモータ２と連動するポ
テンシヨメータの如き位置検出回路、４は回転
台、５は上下回動用モータ、６は左右回動用モー
タ、７は回転台４によるテレビカメラ（図示せ
ず）の旋回速度をズームレンズ１のズーム比に応
じて制御する連動制御部、８はモータ５，６の回
転速度を制御するモータ速度制御回路、９は操作
器、１０はズームレンズ１のズーム比を変化させ
るズーム操作スイツチ、１１は回転台４のモータ
５，６を選択択的に回転させてテレビカメラの指
向方向を変化させる回転台操作スイツチである。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention in which an electric zoom lens has zoom ratio detection means. In the figure, 1 is an electric zoom lens;
2 is a zoom motor, 3 is a position detection circuit such as a potentiometer that works with the motor 2, 4 is a rotary table, 5 is a motor for vertical movement, 6 is a motor for left and right rotation, and 7 is a television camera using the rotary table 4 ( 8 is a motor speed control circuit that controls the rotational speed of the motors 5 and 6; 9 is an operating device; 10 is a zoom lens 1; A zoom operation switch 11 is a rotary table operation switch that selectively rotates the motors 5 and 6 of the rotary table 4 to change the pointing direction of the television camera.
上記構成において、操作器９のズーム操作スイ
ツチ１０を操作するとズームレンズ１のズーム用
モータ２が駆動され、ズーム比が変化する。モー
タ２が動作するとその回転位置は位置検出回路３
により検出される。位置検出回路３により検出さ
れたモータ２の回転位置は、予めズーム比と対応
づけられているので、位置検出回路３からの位置
検出信号はズーム比を示す情報として連動制御部
７のモータ速度制御回路８へ与えられる。この状
態で操作器９の回転台操作スイツチ１１を操作す
ると、モータ速度制御回転８により制御された速
度で上下回動用モータ５或いは左右回動用モータ
６が動作してテレビカメラを所望の方向へ旋回さ
せる。 In the above configuration, when the zoom operation switch 10 of the operation device 9 is operated, the zoom motor 2 of the zoom lens 1 is driven, and the zoom ratio is changed. When the motor 2 operates, its rotational position is determined by the position detection circuit 3.
Detected by Since the rotational position of the motor 2 detected by the position detection circuit 3 is associated with the zoom ratio in advance, the position detection signal from the position detection circuit 3 is used as information indicating the zoom ratio to control the motor speed of the interlocking control unit 7. It is applied to circuit 8. When the rotary table operation switch 11 of the operating device 9 is operated in this state, the vertical movement motor 5 or the left and right rotation motor 6 operates at a speed controlled by the motor speed control rotation 8 to rotate the television camera in the desired direction. let
回転台操作スイツチ１１を操作しながらズーム
操作スイツチ１０を操作することも可能であり、
いずれの場合でもモータ速度制御回路８はズーム
比の大なる時（望遠時）にはモータ５，６の回転
速度を遅く、逆にズーム比の小なる時（広角時）
にはモータ５，６の回転速度を速くするように速
度制御を行なう。 It is also possible to operate the zoom operation switch 10 while operating the rotary table operation switch 11,
In either case, the motor speed control circuit 8 slows down the rotational speed of the motors 5 and 6 when the zoom ratio is large (telephoto), and conversely when the zoom ratio is small (wide-angle).
Then, speed control is performed to increase the rotational speed of the motors 5 and 6.
第２図はズームレンズが位置検出機能をもたな
い本発明の他の実施例を示すブロツク図であり、
第１図と同一部分には同一符号を付してある。こ
の実施例の電動ズームレンズ１は、ズーム用モー
タ２により遠隔制御でズーム比を変化させること
はできても、そのズーム比情報を外部へ取り出す
ことができない。そこで、連動制御部７にズーム
操作スイツチ１０により制御されるモータ１２
と、このモータ１２に連動する位置検出回路１３
を設けている。モータ１２はズーム用モータ２と
同等の動作をなすもので、その回転位置は位置検
出回路１３により検出される。 FIG. 2 is a block diagram showing another embodiment of the present invention in which the zoom lens does not have a position detection function.
The same parts as in FIG. 1 are given the same reference numerals. Although the electric zoom lens 1 of this embodiment can change the zoom ratio by remote control using the zoom motor 2, the zoom ratio information cannot be taken out to the outside. Therefore, the interlocking control section 7 has a motor 12 controlled by the zoom operation switch 10.
and a position detection circuit 13 interlocked with this motor 12.
has been established. The motor 12 operates in the same manner as the zoom motor 2, and its rotational position is detected by a position detection circuit 13.
上記構成であれば、ズームレンズ１に位置検出
機能がなくても、位置検出回路１３はモータ１２
の回転位置から間接的にズーム用モータ２の回転
位置を検出できるので、位置検出回路１３の位置
検出信号をズーム比を示す情報としてモータ速度
制御回路８に与えることができる。従つて、この
実施例のテレビカメラ用回転台でも、テレビカメ
ラの旋回速度を前記実施例と同様ズーム比に応じ
て変化させることができる。 With the above configuration, even if the zoom lens 1 does not have a position detection function, the position detection circuit 13 can be connected to the motor 12.
Since the rotational position of the zoom motor 2 can be indirectly detected from the rotational position of the zoom motor 2, the position detection signal of the position detection circuit 13 can be given to the motor speed control circuit 8 as information indicating the zoom ratio. Therefore, in the television camera turntable of this embodiment as well, the rotation speed of the television camera can be changed in accordance with the zoom ratio as in the previous embodiment.
尚、回転台４によるテレビカメラの旋回速度は
連続的に変化させても段階的に変化させてもよ
い。 Note that the rotation speed of the television camera by the rotary table 4 may be changed continuously or in steps.
以上述べたように、本発明のテレビカメラ用回
転台はズームレンズのズーム比に応じてテレビカ
メラの旋回速度を変化させるので、テレビカメラ
の旋回により発生するモニタ画面中の被写体像の
移動速度はズーム比によらず略一定化し、広角時
には従来の固定旋回速度のものより速い速度で所
望とする領域を観測でき、また望遠時には人間の
目で充分に追従できる変化のモニタ画像を得るこ
とができる。 As described above, the television camera rotary table of the present invention changes the rotation speed of the television camera according to the zoom ratio of the zoom lens, so the moving speed of the subject image on the monitor screen caused by the rotation of the television camera is It is approximately constant regardless of the zoom ratio, and when wide-angle, it is possible to observe the desired area at a faster speed than conventional fixed rotation speed, and when telephoto, it is possible to obtain a monitor image that changes easily enough to be tracked by the human eye. .
第１図は本発明の一実施例を示すブロツク図、
第２図は本発明の他の実施例を示すブロツク図で
ある。
１…電動ズームレンズ、２…ズーム用モータ、
３，１３…位置検出回路、４…回転台、５…上下
回動用モータ、６…左右回動用モータ、７…連動
制御部、８…モータ速度制御回路、９…操作器、
１０…ズーム操作スイツチ、１１…回転台操作ス
イツチ、１２…モータ。
FIG. 1 is a block diagram showing one embodiment of the present invention;
FIG. 2 is a block diagram showing another embodiment of the invention. 1...Electric zoom lens, 2...Zoom motor,
3, 13...Position detection circuit, 4...Turnable table, 5...Motor for vertical movement, 6...Motor for left and right rotation, 7...Interlocking control unit, 8...Motor speed control circuit, 9...Manufacturer,
10...Zoom operation switch, 11...Rotary table operation switch, 12...Motor.
Claims (1)
ビカメラに設けたズームレンズのズーム比を検出
する手段と、この手段により検出されたズーム比
に応じて前記テレビカメラの旋回速度を望遠時に
は遅くかつ広角時には速くするべく可変制御して
撮像画面中の被写体像の移動速度を略一定にする
旋回速度制御手段とを具備したことを特徴とする
テレビカメラ用回転台。1 means for rotating the television camera, means for detecting the zoom ratio of a zoom lens provided on the television camera, and a rotating speed of the television camera that is slow when telephoto and slow when wide-angle, depending on the zoom ratio detected by the means; 1. A rotary stand for a television camera, characterized in that it is equipped with a turning speed control means that performs variable control to increase the speed of movement of a subject image in an imaging screen to a substantially constant speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5432878A JPS54145430A (en) | 1978-05-08 | 1978-05-08 | Rotary base for television camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5432878A JPS54145430A (en) | 1978-05-08 | 1978-05-08 | Rotary base for television camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54145430A JPS54145430A (en) | 1979-11-13 |
| JPS6125144B2 true JPS6125144B2 (en) | 1986-06-14 |
Family
ID=12967514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5432878A Granted JPS54145430A (en) | 1978-05-08 | 1978-05-08 | Rotary base for television camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54145430A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04245782A (en) * | 1991-01-30 | 1992-09-02 | Fuji Photo Film Co Ltd | Video camera |
| JP2000002913A (en) | 1998-06-15 | 2000-01-07 | Matsushita Electric Ind Co Ltd | Monitor camera rotation controller |
| JP2004129049A (en) | 2002-10-04 | 2004-04-22 | Matsushita Electric Ind Co Ltd | Camera device, camera system, and control method of the camera system |
| JP4574479B2 (en) * | 2005-07-21 | 2010-11-04 | キヤノン株式会社 | Imaging apparatus and control method thereof |
-
1978
- 1978-05-08 JP JP5432878A patent/JPS54145430A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54145430A (en) | 1979-11-13 |
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