JPH02123911U - - Google Patents
Info
- Publication number
- JPH02123911U JPH02123911U JP3187989U JP3187989U JPH02123911U JP H02123911 U JPH02123911 U JP H02123911U JP 3187989 U JP3187989 U JP 3187989U JP 3187989 U JP3187989 U JP 3187989U JP H02123911 U JPH02123911 U JP H02123911U
- Authority
- JP
- Japan
- Prior art keywords
- focusing lens
- moving
- focusing
- optical axis
- axis direction
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の実施例の光学系及び回路ブロ
ツクを示す要部概略図である。第２図は第１図の
測距部の構造を示す概略図である。第３図はフオ
ーカシングレンズの基準位置を検出する装置の構
造を示す概略斜視図である。第４図は第１図の測
距部の他の構造を示す概略図である。
１……自動合焦装置、４……フオーカシングレ
ンズ、１０……ＣＣＤ、１２……映像信号処理部
、１５……マイクロコンピユータ、２０……測距
部、２３……ステツピングモータ、２６……ホト
センサ。
FIG. 1 is a schematic diagram of essential parts showing an optical system and circuit blocks of an embodiment of the present invention. FIG. 2 is a schematic diagram showing the structure of the distance measuring section shown in FIG. 1. FIG. 3 is a schematic perspective view showing the structure of a device for detecting the reference position of a focusing lens. FIG. 4 is a schematic diagram showing another structure of the distance measuring section shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Automatic focusing device, 4... Focusing lens, 10... CCD, 12... Video signal processing unit, 15... Microcomputer, 20... Distance measuring unit, 23... Stepping motor, 26 ...Photo sensor.
Claims (1)
測距データに基づいて焦点調節を行うためのフオ
ーカシングレンズを光軸方向に移動させる第１合
焦手段と、この第１合焦手段によつてフオーカシ
ングレンズを合焦準備位置に移動させた後、前記
フオーカシングレンズを光軸方向に振動させなが
ら、被写体像の結像位置に設けた撮像デバイスに
よつて出力される画像信号の高周波成分がピーク
になるようにフオーカシングレンズを移動させる
第２合焦手段とからなることを特徴とする自動合
焦装置。 a first focusing means for moving a focusing lens in an optical axis direction for triangulatingly measuring a distance to a subject and adjusting a focus based on this distance measurement data; Therefore, after moving the focusing lens to the focus preparation position, while vibrating the focusing lens in the optical axis direction, an image signal is outputted by an imaging device installed at the imaging position of the subject image. and a second focusing means for moving a focusing lens so that a high frequency component of is at a peak.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3187989U JPH02123911U (en) | 1989-03-20 | 1989-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3187989U JPH02123911U (en) | 1989-03-20 | 1989-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02123911U true JPH02123911U (en) | 1990-10-12 |
Family
ID=31258075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3187989U Pending JPH02123911U (en) | 1989-03-20 | 1989-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02123911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001290072A (en) * | 2000-04-10 | 2001-10-19 | Olympus Optical Co Ltd | Range finder |
-
1989
- 1989-03-20 JP JP3187989U patent/JPH02123911U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001290072A (en) * | 2000-04-10 | 2001-10-19 | Olympus Optical Co Ltd | Range finder |
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