JPH01100106U - - Google Patents
Info
- Publication number
- JPH01100106U JPH01100106U JP19716287U JP19716287U JPH01100106U JP H01100106 U JPH01100106 U JP H01100106U JP 19716287 U JP19716287 U JP 19716287U JP 19716287 U JP19716287 U JP 19716287U JP H01100106 U JPH01100106 U JP H01100106U
- Authority
- JP
- Japan
- Prior art keywords
- zoom
- camera
- motor
- zoom magnification
- magnification
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案に係るカメラのズーム倍率制御
装置の実施例を示すブロツク図、第２図は第１図
における第２の可変抵抗器の他の構成例であるロ
ータリスイツチを示す図、第３図は第１図を具体
的な回路素子で示した回路図、第４図は従来例を
示すブロツク図である。
１′…モータ駆動回路、２…ズームモータ、３
…正転用ズームスイツチ、４…逆転用ズームスイ
ツチ、８…第１の可変抵抗器、９…第２の可変抵
抗器、１０…比較器回路、Ｑ１〜Ｑ５…トランジ
スタ。
FIG. 1 is a block diagram showing an embodiment of the camera zoom magnification control device according to the present invention, FIG. 2 is a diagram showing a rotary switch which is another example of the configuration of the second variable resistor in FIG. FIG. 3 is a circuit diagram showing specific circuit elements of FIG. 1, and FIG. 4 is a block diagram showing a conventional example. 1'...Motor drive circuit, 2...Zoom motor, 3
...Zoom switch for forward rotation, 4...Zoom switch for reverse rotation, 8...First variable resistor, 9...Second variable resistor, 10...Comparator circuit, Q1 to Q5 ...Transistor.
Claims (1)
ズーム操作を行うカメラにおいて、 ズームモータの位置を検出する手段と、 ズームの最高倍率以下の範囲内で任意にズーム
倍率を設定する手段と、 設定したズーム倍率の位置までの範囲で前記ズ
ームモータを駆動制御可能にする手段とを備えた
ことを特徴とするカメラのズーム倍率制御装置。[Scope of Claim for Utility Model Registration] A camera that uses the rotational force of a zoom motor to perform zoom operations on a zoom lens; A zoom magnification control device for a camera, comprising: means for setting the zoom magnification; and means for driving and controlling the zoom motor within a range up to the position of the set zoom magnification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19716287U JPH01100106U (en) | 1987-12-24 | 1987-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19716287U JPH01100106U (en) | 1987-12-24 | 1987-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100106U true JPH01100106U (en) | 1989-07-05 |
Family
ID=31487731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19716287U Pending JPH01100106U (en) | 1987-12-24 | 1987-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100106U (en) |
-
1987
- 1987-12-24 JP JP19716287U patent/JPH01100106U/ja active Pending
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