JPS5624587A - Inspection apparatus for printed board - Google Patents
Inspection apparatus for printed boardInfo
- Publication number
- JPS5624587A JPS5624587A JP10056379A JP10056379A JPS5624587A JP S5624587 A JPS5624587 A JP S5624587A JP 10056379 A JP10056379 A JP 10056379A JP 10056379 A JP10056379 A JP 10056379A JP S5624587 A JPS5624587 A JP S5624587A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- printed
- output
- image pickup
- patterns
- 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
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
PURPOSE: To enable inspection of printed boards regardless of finer through hole basic grids, by comparing the output of an image pickup section which reads a pattern plotted by a liquid crystal layer section with the output of a memory section which memorizes regular patterns.
CONSTITUTION: When a probe 201 positioned by an XY table 202 is connected to one through hole T1 of a printed pattern N1, a liquid crystal layer 5 plots a pattern. But when the printed pattern N1 fails to conduct to other printed patterns N2 and N3 while there is no disconnection inside, the output pattern from an image pickup section 6 is the same as a regular pattern and the output result from an identification part 7 provides a good signal. When the pattern N1 conducts to the pattern N3, two patterns N1 and N3 appear simultaneously at the image pickup section and the output result S1 provides a faulty signal. Said procedures permit a single probe to perform the inspection of the printed boards regardless of finer through hole basic grid.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10056379A JPS5624587A (en) | 1979-08-06 | 1979-08-06 | Inspection apparatus for printed board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10056379A JPS5624587A (en) | 1979-08-06 | 1979-08-06 | Inspection apparatus for printed board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5624587A true JPS5624587A (en) | 1981-03-09 |
Family
ID=14277378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10056379A Pending JPS5624587A (en) | 1979-08-06 | 1979-08-06 | Inspection apparatus for printed board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624587A (en) |
-
1979
- 1979-08-06 JP JP10056379A patent/JPS5624587A/en active Pending
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