Using the auto brightness adjustment, Using the dome attachment, Using the polarizing filter attachment – KEYENCE IV Series User Manual
Page 169: Installing the sensor at an angle, Reducing the shininess of the glossy or, Metal surface -35, Using the auto brightness adjustment -35, Using the dome attachment -35, Using the polarizing filter attachment -35, Installing the sensor at an angle -35
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- IV Series User's Manual (Monitor) -
Stabilizing the Judgment Process
Reducing the shininess of the glossy
or metal surface
Glossy and/or metal surface may reflect the built-in
light into the camera. Since mirror reflection has a
high-light intensity, the amount of light received will
be saturated and the surface will shine. This section
explains how to reduce the shininess.
z
Using the Auto Brightness Adjustment
If the target shines, the HDR function is enabled
automatically and it can be reduced by using
the auto brightness adjustment.
The HDR (High Dynamic Range) function is
a function that prevents light saturation in the
shining area by imaging the target with a wider
dynamic range. The HDR function can also be
adjusted manually.
“Auto Brightness Adjustment” (Page 4-11)
“Advanced Brightness Adjustment”
z
Using the dome attachment
Use the dome attachment (IV-D10).
The dome attachment emits even diffused light
from the entire circumference to the target, so
that the contrast becomes less and the shine on
the target’s surface is reduced.
This is effective for targets of all shapes.
“Using the dome attachment” (Page 2-6)
Target
Diffusion
light
Dome attachment
z
Using the polarizing filter attachment
Use the polarizing filter attachment (OP-87436/
OP-87437). The optical characteristics of the
polarizing filter attachment cut off the mirror
reflection and reduce the shine on the target’s
surface.
“Using the polarizing filter attachment”
z
Installing the sensor at an angle
The built-in lighting will not reflected back into
the camera, so the shine on the target’s surface
can be reduced.
This is effective for flat-surface targets.
When the sensor is
installed in front of
the target
When the sensor is
installed at an angle
from the target
The mirror reflection
of the built-in light
reflects into the
camera and causes
the surface to shine.
The mirror reflection
of the built-in light
does not reflect into
the camera so no
surface shine occurs.
If the image is distorted by tilting the sensor,
the image can be corrected by the tilt
correction function.
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Operating/Adjusting