MV-9_Chapter 5. Teaching.pdf - 第209页
错误 ! 使用“开始” 选项卡将 제목 2 应用于要在此处显示的文字。 错误 ! 使用“开始”选项卡将 제목 2 应用 于要在此处显示的 文字。 . 5- 209 ③ Polarity in s pection (sold e r insp ect i on ) teach ing and setting - For Polarity inspectio n , dete ct po l arity of m ounted LED pa…
MV-9 User Manual
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[Figure 5-260 Foreign material inspection setting and preview image]
[Figure 5-261 ‘Don’t care region’ setting]
[Figure 5-262 foreign material inspection result]
错误!使用“开始”选项卡将 제목 2 应用于要在此处显示的文字。错误!使用“开始”选项卡将 제목 2 应用
于要在此处显示的文字。 .
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③ Polarity inspection (solder inspection) teaching and setting
- For Polarity inspection, detect polarity of mounted LED package and judge Polarity. In
general, TV has a polarity mark (so called chamfering) on one corner of package. However,
detection status differs from package. Hence, detect electrode inside LED using solder
inspection algorithm.
- Select general inspection, and select light type and image type in which electrode clearly
appears.
- Set color map and binarization value for good electrode separation through preview.
- Select pixel unit inspection, and enter min value for good/defect judgment by pixel unit.
[Figure 5-263 Polarity inspection setting and preview image]
[Figure 5-264 Polarity inspection result]
MV-9 User Manual
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④ X-shift inspection teaching and setting
- Since this model has no reference point for shift inspection, virtual line offset is not used
for binary inspection-position move inspection.
- Create binary inspection window to detect edge of vertical direction at exterior of LED
package for X-shift inspection, and select position move inspection.
- Draw binary inspection window to match window center with package edge. Draw window
larger than tolerance*2 to detect edge.
- Adjust color map and binarization to properly create edge through preview.
- Enter „0‟ for min in normal criteria, and enter max by adding real distance from lead end to
pad end (unit pixel) to inspection reference value. (Refer to figure 5-282.)
[Figure 5-265 X-shift inspection setting and preview image]