JPS59168714U - Auto focus camera lens drive device - Google Patents
Auto focus camera lens drive deviceInfo
- Publication number
- JPS59168714U JPS59168714U JP9293283U JP9293283U JPS59168714U JP S59168714 U JPS59168714 U JP S59168714U JP 9293283 U JP9293283 U JP 9293283U JP 9293283 U JP9293283 U JP 9293283U JP S59168714 U JPS59168714 U JP S59168714U
- Authority
- JP
- Japan
- Prior art keywords
- stop
- lever
- arm
- drive device
- rotation
- 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.)
- Granted
Links
Landscapes
- Focusing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の位置実施例によるレンズ駆動装置を一
部省略して示す分解斜視図、第２図はレンズ駆動装置の
要部正面図、第３図はその断面図、第４図は駆動回路図
、第５図は測距手段からのオートフォーカス信号の出力
と拒絶理由との関係を示す図、第６図はスイッチ回路の
参考例を示す回路図で得る。
１・・・・・・レンズユニット、１ｂ・・・・・・レン
ズ、２・・・・・・メスへリコイド部材、３・・・・・
・レンズ回転板、４・・・・・・回転部材、６・・・・
・・セットレバ−１７，１６・・・・・・バネ、９，１
０．１８．１９・・・・・・永久磁石、１１．２０・・
・・・・電磁石、１４・・・・・・ストップレバー、２
５・・・・・・オート７オーカス回路、３０・・・・・
・ＯＲゲート素子、３１．３２．３３・・・・・・ＡＮ
Ｄゲート素子、３４．３５・・・・・・インバータ素子
、Ｆ・・・・・・駆動手段、Ｇ・・・・・・停止位置制
御手段。FIG. 1 is an exploded perspective view with some parts omitted of a lens driving device according to an embodiment of the present invention, FIG. 2 is a front view of the main parts of the lens driving device, FIG. 3 is a sectional view thereof, and FIG. The drive circuit diagram, FIG. 5 is a diagram showing the relationship between the output of the autofocus signal from the distance measuring means and the reason for rejection, and FIG. 6 is a circuit diagram showing a reference example of the switch circuit. 1...Lens unit, 1b...Lens, 2...Female helicoid member, 3...
・Lens rotating plate, 4...Rotating member, 6...
...Set lever-17, 16...Spring, 9,1
0.18.19...Permanent magnet, 11.20...
...Electromagnet, 14...Stop lever, 2
5... Auto 7 orcus circuit, 30...
・OR gate element, 31.32.33...AN
D gate element, 34.35... Inverter element, F... Drive means, G... Stop position control means.
Claims (1)
て焦点合せを行うオートフォーカスカメラのレンズ駆動
装置において、前記回転部材を正回転させて第１停止位
置に停止して至近撮影或いは無限遠撮影ポジションとす
るとともに、この第１停止位置から回転部材を無限遠撮
影或いは至近撮影ポジションに逆回転させる駆動手段と
、前記駆動手段による逆回転の途中で回転部材を複数段
階の停止位置に停止させる停止位置制御手段とからなり
、前記駆動手段は一端が回転部材にバネを介して連結さ
れたセットレバ−を有し、このセツＬレバーの他端の第
１の腕および第２の腕には各々永久磁石がそれぞれ同じ
極が対向するように固設され、該永久磁石の間にストッ
パー用の電磁石がその両極が択一的に前記永久磁石に吸
着可能に所定の距離をもって配設されてなり、また、前
記停止位置制御手段は前記回転部材との間に形成された
段カム部に選択的に係合して該回転部材の回転停止位置
を規定するストップレバーを有し、このストップレバー
の他端の第１の腕および第２の腕には各々永久磁石がそ
れぞれ同じ極が対向するように固設され、該永久磁石の
間にセット用の電磁石が前記永久磁石に吸着可能に所定
の距離をもって配設されるとともに、ストップレバーは
ハネによって両永久磁石が電磁石から離れた中立位置に
付勢されてなることを特徴とするオートフォーカスカメ
ラのレンズ駆動装置。In a lens drive device for an autofocus camera that moves a lens in an optical axis direction to focus by rotating a rotating member, the rotating member is rotated forward and stopped at a first stop position for close-up photography or infinity photography. a driving means for reversely rotating the rotary member from the first stop position to an infinity photographing position or a close photographing position; and a stopper for stopping the rotary member at a plurality of stop positions during the reverse rotation by the driving means. The drive means has a set lever whose one end is connected to a rotating member via a spring, and a first arm and a second arm at the other end of the set L lever each have a permanent set lever. The magnets are fixed so that the same poles face each other, and a stopper electromagnet is disposed between the permanent magnets at a predetermined distance so that both poles can be alternatively attracted to the permanent magnet, and , the stop position control means has a stop lever that selectively engages with a stepped cam portion formed between the rotation member and the rotation member to define a rotation stop position of the rotation member, and the stop lever has the other end of the stop lever. A permanent magnet is fixed to each of the first arm and the second arm so that the same poles face each other, and a setting electromagnet is spaced at a predetermined distance between the permanent magnets so that it can be attracted to the permanent magnet. A lens drive device for an autofocus camera, characterized in that the stop lever is biased by a spring to a neutral position where both permanent magnets are separated from an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9293283U JPS59168714U (en) | 1983-06-17 | 1983-06-17 | Auto focus camera lens drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9293283U JPS59168714U (en) | 1983-06-17 | 1983-06-17 | Auto focus camera lens drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59168714U true JPS59168714U (en) | 1984-11-12 |
| JPH0143699Y2 JPH0143699Y2 (en) | 1989-12-19 |
Family
ID=30223400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9293283U Granted JPS59168714U (en) | 1983-06-17 | 1983-06-17 | Auto focus camera lens drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59168714U (en) |
-
1983
- 1983-06-17 JP JP9293283U patent/JPS59168714U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0143699Y2 (en) | 1989-12-19 |
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