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Asahi Kasei’s Wire Grid type WGF™ CAMERA FILTER covers wideband imaging from CMOS to InGaAs.

When light is reflected on an object, its polarization state modifies. It is feasible to preferentially inhibit reflected light that interacts with imaging by using a polarizing filter.

Image Credit: Asahi Kasei Corporation

The WGF™  camera filter can be connected to the camera lens unit as usual and the user can start to use it right away. It is capable of wideband imaging from CMOS to InGaAs.

Image Credit: Asahi Kasei Corporation

Single Transmittance: 39.98% Extinction Ratio: 1,500 *Average at 850-1,800 nm * These data are reference values

* These data are reference values

Imaging a face wearing glasses. Image Credit: Asahi Kasei Corporation

Reading QR code through wrapping film. Image Credit: Asahi Kasei Corporation

Transmission inspection inside the printer ink tank. Image Credit: Asahi Kasei Corporation

Transmission inspection of perishable foods. Image Credit: Asahi Kasei Corporation

There is no need to give up detection, such as transparent contamination or extraordinal part, as the image inspection with WGF™ camera filters and InGaAs sensors detects things like transparent contamination and extraordinal parts that would otherwise go undetected.

Polarization can also be used to identify contaminants in opaque containers and contaminants of the same color as liquids.

Numerous resins exhibit a phase-contrast effect. When two WGF ™ s are placed as cross nicole status in front of the light source and sensor, the light from the light source cannot contact the sensor, whereas the light whose polarization axis is rotated or depolarized by the resin features can meet the sensor.

Image Credit: Asahi Kasei Corporation

Detection of a resin fragment in an opaque bag filled with water. Image Credit: Asahi Kasei Corporation

Detection of resin fragments in liquid. Left bottle) water, right bottle) coffee. Image Credit: Asahi Kasei Corporation

WGF™ camera filter is an innovative product that can be bought for trial.

When used for high-intensity polarized lighting, traditional polarizers become disfigured or broken. WGF™  is compatible with high-intensity halogen lighting.

Moreover, by successively using the reflected light on WGF™ , the brightness can be increased.

WGF™ panels that can polarize the light source are also available. Consider it as a series for use with the WGFTM camera filter.

WGF™ panel for a polarized light source with WGF™ sheets laminated on glass. Image Credit: Asahi Kasei Corporation

This information has been sourced, reviewed and adapted from materials provided by Asahi Kasei Corporation.

For more information on this source, please visit Asahi Kasei Corporation.

Please use one of the following formats to cite this article in your essay, paper or report:

Asahi Kasei Corporation. (2022, August 30). Infrared Cameras WGF™ Camera Filter for Detecting Transparent Contamination. AZoOptics. Retrieved on September 03, 2022 from https://www.azooptics.com/Article.aspx?ArticleID=2264.

Asahi Kasei Corporation. "Infrared Cameras WGF™ Camera Filter for Detecting Transparent Contamination". AZoOptics. 03 September 2022. <https://www.azooptics.com/Article.aspx?ArticleID=2264>.

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