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Posts tagged with Polarization

Machine Vision Polarization Filters
Machine Vision Polarization Filters

Reducing Glare in Metal Stent Inspection with Machine Vision Polarizing Filters

In this application, Machine Vision Polarizing Filters are used to reduce glare during inspection of a metal stent that is producing uneven light. Using a MidOpt® PR032 Linear Polarizer in conjunction with a MidOpt BP635 Light Red Bandpass Filter, produces excellent results in eliminating the glare while darkening the background, making the specific feature of the part clear and ready for inspection.

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Application

Reducing Glare in Metal Stent Inspection with Machine Vision Polarizing Filters

In this application, Machine Vision Polarizing Filters are used …

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Glare Reduction with Polarizing Filters and Film

Reduce glare and achieve the best image results by using a polarizing filter over the lens and polarizing film over the light source. MidOpt offers three types of polarizers: PR/PL Series Linear Polarizers, PC Series Circular Polarizers and Pi Series Infrared Polarizers.

Solutions

Glare Reduction with Polarizing Filters and Film

Reduce glare and achieve the best image results by using a polarizing filter over the lens and polarizing film over the light source. MidOpt offers three types of polarizers …

Learn more

Glare Reduction in Glass Bottle Inspection

In this example we see beer bottles imaged at the same time, which have dark, specular, cylindrical surfaces that are difficult to image because the labeling tends to produce glare regardless of how the bottles and lighting may be setup. Polarizing filters used over the lens as well as the light source significantly reduces the specular glare from the application. In addition, because of the curved shape of the bottle, ambient light is also contributing to the glare. Using a MidOpt BP635 Light Red Bandpass filter together with a 625nm red LED effectively eliminates the glare entirely.

Filters used:
PR032 Linear Polarzier
PS030 Ultra High Contrast Linear Polarizer Film
BP635 Light Red Bandpass Filter

Application

Glare Reduction in Glass Bottle Inspection

In this application we illustrate how a MidOpt Bandpass filter is used in conjunction with a MidOpt polarizer to completely eliminate glare …

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