Machine Vision Lenses - Case Studies

A manufacturer of 3D measurement equipment: Company D

The optical axis shift causes an error in inspections. Why does a manufacturer that requires high accuracy would opt for reliability?

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The Company D, a manufacturer that delivers 3D measurement equipment to various types of businesses, performs inspections and precise calibration of all lenses used for the equipment before providing them to users. However, the optical axis of lens may be shifted by shock or vibration after operation startup, thereby hindering accurate inspections. Therefore, selecting a lens with shock-resistant and anti-vibration functions after operation startup is a challenge.

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System integrator M

The actual resolution performance of a lens cannot be learned by specification.
What is the key tool to recognize it clearly?

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The system integrator M was selecting a lens based on the catalog specifications in accordance with requirements of the company’s inspection vision system. However, they felt frustrated by not being able to constantly provide the best lens because lenses with the same specification by different manufactures varied greatly in the resolution performance.

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Beverage manufacturer: Company E

Using expensive IR (infrared) lenses for conventional beverage inspections. What made it possible to reduce costs?

A beverage manufacturer, Company E, fills bottles with liquid, automatically inspects the height of the liquid level and whether or not foreign objects have been mixed in, and then ships the product. Since the inspection cannot be performed without reducing the diffuse reflection of visible light and allowing the plastic label to pass through, an IR light is used. When reviewing the automatic inspection system due to the expansion of the production line, they were considering ways to reduce costs.

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