YSI_Prog_E.pdf - 第182页
4-22 4 Inspection status 1.8 Brightness Level Use this inspection mode to measure the brightness level in a step frame in order to c heck for upside-down parts, position deviations, and the polarity . 1 Make a "step…
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Inspection status
5
Perform a step test.
1. Press the [Step] button at the "Tuning" tab to perform a test for the created step.
2. When the test result appears, press the [End] button. When doing so, there is no problem if the test
result is "NG".
6
Press the [Detail] button.
The "Inspect result" dialog box opens. Press the [Auto Calculation] button. The following items in the
detection conditions parameters are set automatically.
Minimum Detectable Size X
The minimum X and Y widths for the inspection object are set.
7
Perform a step test again.
1. Press the [Step] button at the "Tuning" tab again to perform a step test.
2. Take a note of and check the detection data, and then press the [End] button.
Screen after a step test is finished
Test resultDisplays detected data.
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Detected data
Threshold No. : Threshold No. used for inspection
dx =, dy = : Amount that the step frame center deviates from the detection area center
Area = : Percentage of the detected area relative to the standard area
TIP
If dx and dy are "0", this means than the position correction limit is exceeded, so the position is not offset.
3. If the test result is not judged correctly, review all parameters while referring to the detection data.
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Inspection status
1.8 Brightness Level
Use this inspection mode to measure the brightness level in a step frame in order to check for upside-down
parts, position deviations, and the polarity.
1
Make a "step" setting.
1. Create a step frame.
2. Open the "Basic" tab, and set the "Status" in the basic parameters to "Brightness Level".
n
NOTE
No threshold settings are required because the color image brightness is used as it is.
Status (inspection mode)
Brightness Level
Set to "Brightness Level".
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Set the "LIGHT" parameters.
Open the "LIGHT" tab and select "Luminance" at "Light Sampling Type".
"LIGHT" parameters
Light Sampling Type : Luminance
Opens a lighting list.
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Sampling light
"Mb+Lb" is normally used. Press the button to the right of the sampling light value field to open the
sampling light list, select "Mb+Lb" from the list, and then press the [OK] button.
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Inspection status
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Set the "Judge" parameters.
Open the "Judge" tab and set the following parameters.
"Judge" parameters
Status: Brightness Level
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Minimum Luminance Level
Select a value from the drop-down list, or enter a value. If the luminance level inside the selected step
frame does not reach the value set here, an NG result is judged. Leave this setting at the default value.
(Set an appropriate value set Step 5.) If a judgment is not made at the lower limit, select "Skip".
Maximum Luminance Level
Select a value from the drop-down list, or enter a value. If the luminance level inside the step frame is
greater than the value set here, an NG result is judged. Leave this setting at the default value. (Set an
appropriate value set Step 5.)
If a judgment is not made at the upper limit, select "Skip".
Measure Method
From the drop-down list, select the measurement level suitable for the inspection location.
Mean : Judges the brightness level based on the average brightness in the step frame.
Minimum : Judges the brightness level based on the minimum brightness in the step frame.
Maximum : Judges the brightness level based on the maximum brightness in the step frame.
Deviation : Judges the brightness level based on the standard deviation of the brightness in the
step frame.
Max – Min : Judges the brightness level based on the difference between the maximum brightness
and minimum brightness in the step frame.
MinMean : Performs judgment with the average luminance in the range 25% of the step
frame focusing on locations with minimum luminance inside the step frame.
MaxMean : Performs judgment with the average luminance in the range 25% of the step
frame focusing on locations with maximum luminance inside the step frame.
Memory No.
This parameter is used in conjunction with another inspection mode "Comparison".
If not using this parameter, set it to "0".
For details on "Comparison", see section 1.9, "Comparison", in this manual.