JPH0345506U - - Google Patents
Info
- Publication number
- JPH0345506U JPH0345506U JP10590789U JP10590789U JPH0345506U JP H0345506 U JPH0345506 U JP H0345506U JP 10590789 U JP10590789 U JP 10590789U JP 10590789 U JP10590789 U JP 10590789U JP H0345506 U JPH0345506 U JP H0345506U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- zoom lens
- speed instruction
- zoom
- camera
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Lens Barrels (AREA)
Description
図は本考案の好適な実施例を示し、第１図は全
体構成を概略的に示す説明図、第２図は制御系統
を示すブロツク図である。
１……ズームレンズ、２……カメラ、３……旋
回台、４……ポテンシヨメータ、５……変換回路
、６……演算回路、８……ジヨイステツクスイツ
チ、１０……モニター。
The figures show preferred embodiments of the present invention, with FIG. 1 being an explanatory diagram schematically showing the overall configuration, and FIG. 2 being a block diagram showing the control system. 1... Zoom lens, 2... Camera, 3... Swivel base, 4... Potentiometer, 5... Conversion circuit, 6... Arithmetic circuit, 8... Joystick switch, 10... Monitor.
Claims (1)
旋回駆動される旋回台に搭載されたズームレンズ
カメラにおいて、前記ズームレンズのズーム位置
を検出するズーム位置検出機構と、このズーム位
置検出機構からの出力信号を対数変換して焦点距
離を検出する変換回路と、前記旋回台の旋回速度
を指示する旋回速度指示信号を出力する旋回速度
指示機構と、この旋回速度指示機構から出力され
た旋回速度指示信号と前記変換回路から出力され
た焦点距離検出信号とに基づいて演算を行い演算
結果を駆動制御信号として前記サーボモータに出
力する演算回路とを備えたことを特徴とするズー
ムレンズカメラの旋回速度制御装置。 In a zoom lens camera in which a camera having a zoom lens is mounted on a swivel base that is rotationally driven by a servo motor, there is a zoom position detection mechanism that detects the zoom position of the zoom lens, and an output signal from the zoom position detection mechanism is calculated using a logarithm. a conversion circuit that converts and detects a focal length; a rotation speed instruction mechanism that outputs a rotation speed instruction signal that indicates the rotation speed of the rotation base; and a rotation speed instruction signal output from the rotation speed instruction mechanism and the conversion. A rotation speed control device for a zoom lens camera, comprising: an arithmetic circuit that performs a calculation based on a focal length detection signal output from the circuit and outputs the calculation result to the servo motor as a drive control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10590789U JPH0345506U (en) | 1989-09-08 | 1989-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10590789U JPH0345506U (en) | 1989-09-08 | 1989-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345506U true JPH0345506U (en) | 1991-04-26 |
Family
ID=31654662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10590789U Pending JPH0345506U (en) | 1989-09-08 | 1989-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345506U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986014A (en) * | 1982-11-08 | 1984-05-18 | Canon Inc | Correcting device of variation in field angle |
-
1989
- 1989-09-08 JP JP10590789U patent/JPH0345506U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5986014A (en) * | 1982-11-08 | 1984-05-18 | Canon Inc | Correcting device of variation in field angle |