JPH0269749U - - Google Patents
Info
- Publication number
- JPH0269749U JPH0269749U JP14917088U JP14917088U JPH0269749U JP H0269749 U JPH0269749 U JP H0269749U JP 14917088 U JP14917088 U JP 14917088U JP 14917088 U JP14917088 U JP 14917088U JP H0269749 U JPH0269749 U JP H0269749U
- Authority
- JP
- Japan
- Prior art keywords
- landless
- wiring board
- printed wiring
- holes
- light
- 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
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案による一実施例を示す外観検査
装置のブロツク図、第２図は印刷配線板のランド
レススルーホールに照射される光の経路を示す印
刷配線板の部分断面図、第３図はランドレススル
ーホールの画像パターンの平面図、第４図は反射
光による画像パターンの平面図、第５図は透過光
による画像パターンの平面図、第６図は従来の一
例を示す外観検査装置のブロツク図、第７図は印
刷配線板のランドレススルーホールに照射される
光の経路を示す印刷配線板の部分断面図である。
１……コンピユータ、２，５……ＣＣＤカメラ
、４ａ……Ｘ軸、４ｂ……Ｙ軸、３……入出力部
、６……光照射機構、７……印刷配線板、８……
テーブル、９……制御回路、１０……Ｘ駆動機構
、１１……Ｙ駆動機構、１２……欠番、１３……
光、１４……信号配線、１５……ランドレススル
ーホール。
Fig. 1 is a block diagram of an appearance inspection device showing one embodiment of the present invention, Fig. 2 is a partial sectional view of the printed wiring board showing the path of light irradiated to the landless through-hole of the printed wiring board, and Fig. 3. 4 is a plan view of an image pattern of a landless through hole, FIG. 4 is a plan view of an image pattern using reflected light, FIG. 5 is a plan view of an image pattern using transmitted light, and FIG. 6 is a plan view of an image pattern of a conventional appearance inspection device. The block diagram, FIG. 7, is a partial sectional view of the printed wiring board showing the path of light irradiated to the landless through holes of the printed wiring board. 1... Computer, 2, 5... CCD camera, 4a... X axis, 4b... Y axis, 3... Input/output section, 6... Light irradiation mechanism, 7... Printed wiring board, 8...
Table, 9... Control circuit, 10... X drive mechanism, 11... Y drive mechanism, 12... Missing number, 13...
Light, 14...Signal wiring, 15...Landless through hole.
Claims (1)
刷配線板を乗せる透明な板状のテーブルと、前記
印刷配線板上を斜め上方より光を照射する光照射
機構と、前記ランドレススルーホールより反射す
る光及び前記ランドレススルーホール及び前記テ
ーブルを透過する光を捕捉するＣＣＤカメラと、
前記テーブルをＸ及びＹ方向に移動させるＸ，Ｙ
駆動機構と、前記Ｘ，Ｙ駆動機構を制御する制御
回路と、前記光検知器より送信される信号を入力
する入出力部をもつとともに前記信号を画像処理
して画像パターンを得るコンピユータとを備える
ことを特徴とする外観検査装置。 a transparent plate-shaped table on which a printed wiring board with a large number of landless through holes is placed; a light irradiation mechanism that irradiates light onto the printed wiring board from diagonally above; light reflected from the landless through holes; a CCD camera that captures light passing through the landless through hole and the table;
X, Y to move the table in the X and Y directions
A drive mechanism, a control circuit that controls the X and Y drive mechanisms, and a computer that has an input/output unit that inputs signals transmitted from the photodetector and that processes the signals to obtain an image pattern. An appearance inspection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14917088U JPH0269749U (en) | 1988-11-15 | 1988-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14917088U JPH0269749U (en) | 1988-11-15 | 1988-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0269749U true JPH0269749U (en) | 1990-05-28 |
Family
ID=31421157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14917088U Pending JPH0269749U (en) | 1988-11-15 | 1988-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0269749U (en) |
-
1988
- 1988-11-15 JP JP14917088U patent/JPH0269749U/ja active Pending