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Chapter 6: Installation Conditions and Method
6-1 Installation conditions
[1] Lighting equipment
Lighting for the workpieces is an important factor in image processing. The lighting conditions affect
the measurement results. Select the proper lighting equipment.
- Make sure there is uniform illumination of the whole measurement field where object images will be
taken.
- Use flicker-free lighting equipment, such as a high frequency fluorescent lamps or halogen lamps.
- Consult us about the right lighting equipment for your application.
[Backlighting]
Light should uniformly illuminate the field behind an object, so that the IV-S20 measure the object with
it's shadow. Since the shadow picture will be converted to binary values, reliable measurements can
be executed.
Example:
Miss-processed
product
[Reflective lighting]
A light shone on the front of an object with angle will be reflected, and the IV-S20 will pick up the
reflected light. If too much light is reflected, such as from a metallic surface or similar materials, a
proper image may not be obtained.
Example:
Backlighting equipment
Light
Conveyor
Inspection of a processed part
IV-S20
Label
Light beam
Light beam
Label detection
Installation Conditions and Method
IV-S20
Light
Linear feeder
Hole inspection
Backlighting using
surface illuminance LED
IV-S20
Light beam
IV-S20
Measurement of the center
coordinates of a hole
6-1
6
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