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acrylic glass & infrared light

Two Rows with each four (2x4) Acrylic Glass Panels (75x100x3mm) with different colors.
normal visible light
Two Rows with each four (2x4) Acrylic Glass Panels (75x100x3mm) with different colors. Picture taken with USB-Webcam that has an HI-PASS Infrared Filter mounted. so its a gray-scale-image. some of the -for humans- colorful panels are fully transparent in the infrared wavelength.
only infrared above ~825nm

Is colorful Acrylic glass transparent to Infrared Light?

hover over the image above to find out 🙂

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