JPS5812162Y2 - Automatic focus device operation regulation device - Google Patents
Automatic focus device operation regulation deviceInfo
- Publication number
- JPS5812162Y2 JPS5812162Y2 JP1977115317U JP11531777U JPS5812162Y2 JP S5812162 Y2 JPS5812162 Y2 JP S5812162Y2 JP 1977115317 U JP1977115317 U JP 1977115317U JP 11531777 U JP11531777 U JP 11531777U JP S5812162 Y2 JPS5812162 Y2 JP S5812162Y2
- Authority
- JP
- Japan
- Prior art keywords
- automatic focusing
- zoom lens
- focusing device
- macro photography
- actuating member
- 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
Landscapes
- Focusing (AREA)
Description
【考案の詳細な説明】
本考案は自動焦点装置の作動規制装置、更に詳しくはズ
ームレンズのマクロ撮影領域に於て焦点装置を自動的に
不作動となす作動規制装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation regulating device for an automatic focusing device, and more particularly to an operating regulating device for automatically disabling the focusing device in a macro photography region of a zoom lens.
従来無限遠乃至近距離を反復走査する為の固定ミラー及
び走査ミラーの受光量をフォーカスモジュールによって
光電変換して得られる出力と、距離調節環の調節位置検
出スイッチの出力信号と、走査ミラーの１サイクルの走
査に同期する同期スイッチの出力とをロジック回路に入
力して、前記１サイクル内に於ける前記フォーカスモジ
ュールの出力のピーク値と前記検出スイッチの出力との
差によってサーボ駆動回路を駆動して距離調節環を駆動
するサーボモーターを駆動して自動焦点調節を行う自動
焦点装置は知られている。Conventionally, the output obtained by photoelectrically converting the amount of light received by a fixed mirror and a scanning mirror for repeatedly scanning from infinite to short distances by a focus module, the output signal of the adjustment position detection switch of the distance adjustment ring, and the one of the scanning mirrors. The output of the synchronization switch synchronized with the scanning cycle is input to a logic circuit, and the servo drive circuit is driven by the difference between the peak value of the output of the focus module and the output of the detection switch within the one cycle. An automatic focusing device is known that performs automatic focusing by driving a servo motor that drives a distance adjustment ring.
しかしながら従来のこの種の装置に於てはフォーカスモ
ジュールに作動範囲が有り、特に至近測定に限界があり
、従ってマクロズームレンズを有するカメラに於てマク
ロ撮影を行う場合、自動焦点装置が作動しても誤出力を
発生する。However, in conventional devices of this type, the focus module has a working range, and there is a limit to close-up measurement in particular. Therefore, when taking macro photography with a camera equipped with a macro zoom lens, the autofocus device does not operate. also generates incorrect output.
従って本考案の目的はカメラをマクロ撮影に使用する場
合に自動焦点装置を不作動とし、誤操作の無いカメラを
提供することである。Accordingly, an object of the present invention is to provide a camera that disables the automatic focus device when the camera is used for macro photography, thereby preventing erroneous operation.
本考案の特徴は、ズームレンズのマクロ領域への調節に
より自動焦点装置に設けた常閉性スイッチを開放して自
動焦点装置を不作動となすように配置された作動部材を
ズームレンズに設けて、マクロ撮影の際にこの常閉性ス
イッチにより自動焦点装置を不作動となすように構成し
た点にある。The present invention is characterized in that the zoom lens is provided with an actuating member arranged to open a normally closed switch provided in the autofocus device and disable the autofocus device when the zoom lens is adjusted to the macro area. The main feature is that this normally closed switch disables the automatic focusing device during macro photography.
このように構成することによりマクロ撮影に於ける誤動
作が無（なり、マクロ撮影へのパンニングが円滑に行な
えるのである。With this configuration, there is no malfunction during macro photography, and panning for macro photography can be performed smoothly.
以下に本考案による実施例を添付図面を参照して説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.
図面に於て簡単の為に自動焦点装置は電源１と、フォー
カスモジュール２と、走査ミラーの走査モーター３とを
含む如く示されている。In the drawings, for the sake of simplicity, the autofocus device is shown to include a power source 1, a focus module 2, and a scanning motor 3 of a scanning mirror.
この回路には常閉スイッチ４を含み、このスイッチ４が
開放されると自動焦点装置が不作動になされるようにな
っている。This circuit includes a normally closed switch 4, such that when this switch 4 is opened, the autofocus device is deactivated.
対物レンズ５は距離調節環６及びマクロ撮影用ズームレ
バー７を有するズームリング８を有し、対物レンズ５が
所定至近距離に調節されて作動が制止された時に、ズー
ムレバー７を引出して更にズームリング８を所定距離に
指標９に合せて回転させてマクロ撮影を行うようになっ
ている。The objective lens 5 has a zoom ring 8 having a distance adjustment ring 6 and a zoom lever 7 for macro photography, and when the objective lens 5 is adjusted to a predetermined close distance and its operation is stopped, the zoom lever 7 is pulled out to further zoom. Macro photography is performed by rotating the ring 8 at a predetermined distance in accordance with the index 9.
本考案の特徴によりズームリング８には前述のスイッチ
４と協働する作動部材１０が配置されていて、マクロ撮
影の為にズームリング８がマクロ撮影の調節範囲に入る
と作動部材１０がスイッチ４に当接してこれを開放し、
自動焦点装置を不作動となす。According to the feature of the present invention, the zoom ring 8 is provided with an actuating member 10 that cooperates with the switch 4 described above, and when the zoom ring 8 enters the adjustment range for macro photography, the actuating member 10 activates the switch 4. to release it by contacting it,
Disable autofocus device.
上述の如く構成されているから、マクロ領域に於ては作
動部材９によりスイッチ４が開放され、自動焦点装置が
不作動となされて、自動焦点装置による誤動作が阻止さ
れ、又マクロ撮影へのパンニングが円滑に行い得る利点
が得られる。Since the configuration is as described above, the switch 4 is opened by the actuating member 9 in the macro area, and the autofocus device is made inactive, preventing malfunction of the autofocus device and panning for macro photography. This has the advantage that it can be carried out smoothly.
添付図面は本考案による自動焦点装置の概略的説明図。
１・・・・・・電Ｌ ２・・・・・・フォーカスモジュ
ール、３・・・・・・走査用モーター、４・・・・・・
スイッチ、５・・・・・・対物レンズ、８・・・・・・
ズームリング、１０・・・・・・作動部材。The accompanying drawings are schematic illustrations of an automatic focusing device according to the present invention. 1... Electric L 2... Focus module, 3... Scanning motor, 4...
Switch, 5...Objective lens, 8...
Zoom ring, 10... Operating member.
Claims (1)
の作動規制装置に於て、前記自動焦点装置に接続され、
開放されることによりこれを不作動となす常閉性スイッ
チと、前記ズームレンズのズームリングに設けられた作
動部材とを有し、前記作動部材はズームレンズがマクロ
撮影領域に調節される時に前記常閉性スイッチに当接し
てこれを開放し、前記自動焦点装置を不作動となすよう
に構成されて居て、これにより前記ズームレンズが前記
自動焦点装置により至近距離に調節されて制止された時
点で前記ズームレンズをマクロ撮影領域に調節すること
によって前記作動部材を介して前記常閉性スイッチを開
放し、前記自動焦点装置を不作動となして良好なマクロ
撮影を行うとともにマクロ撮影へのパンニングの際の誤
動作を阻止したことを特徴とする自動焦点装置の作動規
制装置。In an operation regulating device for an automatic focusing device of a camera having a macro shooting zoom lens, connected to the automatic focusing device,
It has a normally closed switch that is inactive when opened, and an actuating member provided on the zoom ring of the zoom lens, and the actuating member is configured to close the normally closed switch when the zoom lens is adjusted to a macro photography area. The zoom lens is configured to contact a closing switch to open it and disable the automatic focusing device, so that when the zoom lens is adjusted to a close range and stopped by the automatic focusing device. By adjusting the zoom lens to a macro photography area, the normally closed switch is opened via the actuating member, and the autofocus device is inactivated to perform good macro photography and when panning for macro photography. An operation regulating device for an automatic focusing device, characterized in that it prevents malfunction of the automatic focusing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977115317U JPS5812162Y2 (en) | 1977-08-30 | 1977-08-30 | Automatic focus device operation regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977115317U JPS5812162Y2 (en) | 1977-08-30 | 1977-08-30 | Automatic focus device operation regulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5441642U JPS5441642U (en) | 1979-03-20 |
| JPS5812162Y2 true JPS5812162Y2 (en) | 1983-03-08 |
Family
ID=29066839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977115317U Expired JPS5812162Y2 (en) | 1977-08-30 | 1977-08-30 | Automatic focus device operation regulation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812162Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536645B2 (en) * | 1972-08-25 | 1978-03-10 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619059Y2 (en) * | 1976-07-02 | 1981-05-07 |
-
1977
- 1977-08-30 JP JP1977115317U patent/JPS5812162Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS536645B2 (en) * | 1972-08-25 | 1978-03-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5441642U (en) | 1979-03-20 |
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