JPS58154919U - automatic focus device - Google Patents
automatic focus deviceInfo
- Publication number
- JPS58154919U JPS58154919U JP5127282U JP5127282U JPS58154919U JP S58154919 U JPS58154919 U JP S58154919U JP 5127282 U JP5127282 U JP 5127282U JP 5127282 U JP5127282 U JP 5127282U JP S58154919 U JPS58154919 U JP S58154919U
- Authority
- JP
- Japan
- Prior art keywords
- distance range
- photographing
- lens
- selection means
- scanning range
- 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)
- Lens Barrels (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、撮影距離と撮影レンズの移動量の関係を表わ
す図で、第２図は、被写界の空間的位置を示す図であり
、第３図は、本考案による実施例の原理を示す図であり
、第４図は、処理回路の例を示す回路図であり、第５図
は、モーター駆動回路の例を示す回路図であり、第６図
は、本考案による装置を一部を除いてレンズ鏡筒内に組
み込んだ場合のレンズ鏡筒の具体例の外観を示す図であ
り、第７図は、第６図に示した鏡筒のＡ−Ａ断面におけ
る断面図である。
〔主要部分の符号の説明〕、焦点検出手段・・・・・・
３〜６、駆動手段・・・・・・８〜１０、選択手段・・
・・・・１１〜１７．１９〜２５．２７〜２９、制御手
段・・・・・・７゜FIG. 1 is a diagram showing the relationship between the photographing distance and the amount of movement of the photographing lens, FIG. 2 is a diagram showing the spatial position of the object field, and FIG. 3 is a diagram showing the principle of the embodiment according to the present invention. FIG. 4 is a circuit diagram showing an example of a processing circuit, FIG. 5 is a circuit diagram showing an example of a motor drive circuit, and FIG. 6 is a diagram showing an example of a device according to the present invention. FIG. 7 is a diagram showing the external appearance of a specific example of the lens barrel when it is assembled into the lens barrel except for the parts, and FIG. 7 is a cross-sectional view taken along the line A-A of the lens barrel shown in FIG. . [Explanation of symbols of main parts], Focus detection means...
3-6, Driving means...8-10, Selection means...
...11~17.19~25.27~29, control means...7°
Claims (1)
内において選択される撮影距離範囲の無限遠側の走査範
囲限界は共通で至近側の走査範囲限界を異ならせる選択
手段と、整択手段により制限され、これによって選択さ
れた撮影距離範囲にある被写体に撮影レンズが合焦する
ように制限的に駆動手段を制御する制御手段とを有する
ことを特徴とする自動合焦装置。 ２ 焦点検出手段と該検出手段から信号を受け、撮影レ
ンズを合焦位置に導びく為の制御信号を出力する制御手
段とを有するカメラと、該カメラに着脱可能なレンズ鏡
筒において、該レンズ鏡筒が、カメラ側の制御手段から
制御信号を受けて撮影レンズを駆動する駆動手段と、全
撮影距離範囲に包含される特定の撮影距離範囲を選択し
、該選択された撮影距離範囲にある被写体に撮影レンズ
が合焦するよう前記制御手段が制限的に前記駆動手段を
制御するための該制御手段に制限信号を出力するところ
の選択手段とを有することを特徴とする実用新案登録請
求の範囲第１項記載の自動合焦装置。 ３ 前記選択手段は、それぞれ全撮影距離範囲に包含さ
れる複数の撮影距離範囲のうちいずれかを選択可能であ
って、選択される撮影距離範囲は夫々至近側の走査範囲
限界が異なり、無限遠側の走査範囲限界は夫々共通であ
るように設定されている実用新案登録請求の範囲第１項
又は第２項記載の自動合焦装置。 ４ 前記選択手段は、選択される距離範囲の至近側の走
査範囲限界が連続的に異なるように距離範囲を選択する
実用新案登録請求の範囲第１項又は第２項記載の自動合
焦装置。[Claims for Utility Model Registration] 1. The driving means for driving the photographing lens and the scanning range limit on the infinity side of the photographing distance range selected within the entire photographing distance range are common, but the scanning range limit on the close side is different. An automatic device characterized by having a selection means and a control means limited by the selection means and controlling the driving means in a limited manner so that the photographing lens focuses on a subject within the selected shooting distance range. Focusing device. 2. A camera having a focus detection means and a control means for receiving a signal from the detection means and outputting a control signal for guiding a photographic lens to a focus position, and a lens barrel that is detachable from the camera, and the lens The lens barrel selects a specific shooting distance range that is included in the entire shooting distance range and a driving unit that receives a control signal from a control unit on the camera side to drive the photographing lens, and the lens barrel is within the selected shooting distance range. and a selection means for outputting a restriction signal to the control means for controlling the drive means in a limited manner so that the photographic lens is focused on the subject. Automatic focusing device according to scope 1. 3. The selection means is capable of selecting any one of a plurality of photographing distance ranges included in the total photographing distance range, and each of the selected photographing distance ranges has a different scanning range limit on the close side, and a scanning range limit on the close side, and The automatic focusing device according to claim 1 or 2, wherein the side scanning range limits are set to be common. 4. The automatic focusing device according to claim 1 or 2, wherein the selection means selects a distance range such that the scanning range limit on the close side of the selected distance range is continuously different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5127282U JPS58154919U (en) | 1982-04-10 | 1982-04-10 | automatic focus device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5127282U JPS58154919U (en) | 1982-04-10 | 1982-04-10 | automatic focus device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58154919U true JPS58154919U (en) | 1983-10-17 |
| JPH0320809Y2 JPH0320809Y2 (en) | 1991-05-07 |
Family
ID=30061994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5127282U Granted JPS58154919U (en) | 1982-04-10 | 1982-04-10 | automatic focus device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58154919U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54113334A (en) * | 1978-02-24 | 1979-09-04 | Nippon Chemical Ind | Apparatus for detecting focus point position |
| JPS55118218U (en) * | 1979-02-16 | 1980-08-21 | ||
| JPS58138908U (en) * | 1982-03-12 | 1983-09-19 | キノ精密工業株式会社 | Focus lock device in lens barrel |
-
1982
- 1982-04-10 JP JP5127282U patent/JPS58154919U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54113334A (en) * | 1978-02-24 | 1979-09-04 | Nippon Chemical Ind | Apparatus for detecting focus point position |
| JPS55118218U (en) * | 1979-02-16 | 1980-08-21 | ||
| JPS58138908U (en) * | 1982-03-12 | 1983-09-19 | キノ精密工業株式会社 | Focus lock device in lens barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0320809Y2 (en) | 1991-05-07 |
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