JPH02119210U - - Google Patents
Info
- Publication number
- JPH02119210U JPH02119210U JP11884389U JP11884389U JPH02119210U JP H02119210 U JPH02119210 U JP H02119210U JP 11884389 U JP11884389 U JP 11884389U JP 11884389 U JP11884389 U JP 11884389U JP H02119210 U JPH02119210 U JP H02119210U
- Authority
- JP
- Japan
- Prior art keywords
- image input
- input device
- focus
- output
- focus positions
- 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
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Focusing (AREA)
Description
第１図は本考案にかかるオートフオーカス装置
を適用可能な磁気ヘツドの姿勢計測の概略を示す
説明図、第２図は磁気ヘツドの異なる姿勢での上
記姿勢計測の様子を示す説明図、第３図は本考案
にかかるオートフオーカス装置の出力電圧特性の
例を示す線図、第４図は同上出力特性の異なる例
を示す線図、第５図は同上出力特性の一部のデー
タを０にすることを示す線図、第６図は本考案に
かかるオートフオーカス装置の動作例を示すフロ
ーチヤート、第７図は本考案の応用例である磁気
ヘツド自動組み立て装置の例を示すブロツク図、
第８図は画像入力装置によつて得られる画像の例
を示す正面図、第９図は上記磁気ヘツド自動組み
立て装置の動作を示すフローチヤート、第１０図
はオートフオーカス装置によつて得られる信号の
例を示す波形図、第１１図は複数のピント位置を
有する試料に漸するオートフオーカス装置の出力
特性の例を示す線図である。
１，２……試料としての磁気ヘツド、５……画
像入力装置としてのテレビカメラ、ａ，ｂ……ピ
ント位置、Ｃ……基準点、Ｖａ，Ｖｂ……ピーク
値。
FIG. 1 is an explanatory diagram showing an outline of the attitude measurement of a magnetic head to which the autofocus device according to the present invention can be applied, FIG. Fig. 3 is a diagram showing an example of the output voltage characteristic of the autofocus device according to the present invention, Fig. 4 is a diagram showing different examples of the same output characteristic, and Fig. 5 is a diagram showing some data of the same output characteristic. 6 is a flowchart showing an example of the operation of the autofocus device according to the present invention, and FIG. 7 is a block diagram showing an example of an automatic magnetic head assembly device which is an application example of the present invention. figure,
FIG. 8 is a front view showing an example of an image obtained by the image input device, FIG. 9 is a flowchart showing the operation of the magnetic head automatic assembly device, and FIG. 10 is a front view showing an example of an image obtained by the autofocus device. FIG. 11 is a waveform diagram showing an example of a signal. FIG. 11 is a diagram showing an example of output characteristics of an autofocus device for a sample having a plurality of focus positions. 1, 2... Magnetic head as a sample, 5... Television camera as an image input device, a, b... Focus position, C... Reference point, Va, Vb... Peak value.
Claims (1)
軸方向に複数のピント位置を有する試料に対する
オートフオーカス装置であつて、画像入力装置と
試料とを光軸方向に相対移動させて基準点での出
力を検出すると共に、上記複数のピント位置に対
応している出力のピーク値及びそのときの位置を
検出し、各ピーク値と上記基準点での出力との比
較によつて上記複数のピント位置の所定のピント
位置に合焦することを特徴とするオートフオーカ
ス装置。 An autofocus device for a sample that is used in an image input device and has multiple focus positions in the optical axis direction of the image input device, and that moves the image input device and the sample relative to each other in the optical axis direction to set a reference point. In addition to detecting the output of the plurality of focus positions, the peak value of the output corresponding to the plurality of focus positions and the position at that time are also detected, and by comparing each peak value with the output at the reference point, the plurality of focus points are detected. An autofocus device characterized by focusing on a predetermined focus position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989118843U JPH087382Y2 (en) | 1988-10-14 | 1989-10-11 | Auto focus device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-134336 | 1988-10-14 | ||
| JP13433688 | 1988-10-14 | ||
| JP1989118843U JPH087382Y2 (en) | 1988-10-14 | 1989-10-11 | Auto focus device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02119210U true JPH02119210U (en) | 1990-09-26 |
| JPH087382Y2 JPH087382Y2 (en) | 1996-03-04 |
Family
ID=31718875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989118843U Expired - Lifetime JPH087382Y2 (en) | 1988-10-14 | 1989-10-11 | Auto focus device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087382Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662217A (en) * | 1979-10-27 | 1981-05-28 | Nippon Kogaku Kk <Nikon> | Position detector |
| JPS59111611A (en) * | 1982-12-17 | 1984-06-27 | Matsushita Electric Ind Co Ltd | Automatic focusing device |
-
1989
- 1989-10-11 JP JP1989118843U patent/JPH087382Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662217A (en) * | 1979-10-27 | 1981-05-28 | Nippon Kogaku Kk <Nikon> | Position detector |
| JPS59111611A (en) * | 1982-12-17 | 1984-06-27 | Matsushita Electric Ind Co Ltd | Automatic focusing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087382Y2 (en) | 1996-03-04 |
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