Blogs & Resources

Follow the latest API news, events and innovations.

How it Works: Visible Light Circular Polarizer

How it Works: Visible Light Circular Polarizer

Uses: Circular polarizers are used to improve the viewability of emissive displays. In bright light environments, Electroluminescent (EL), Field Emissive Displays (FED), Cathode Ray Tube (CRT), Light Emitting Diode (LED) and Organic Light Emitting...

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How it Works: Quarter Wave & Half Wave Plate

How it Works: Quarter Wave & Half Wave Plate

API's quarter wave plate and half wave plate are single-layer polycarbonate films offering great performance and clarity. Our quarter wave retarders are available in 500nm (125nm OPD), 560nm (140nm OPD), and 660nm (165nm OPD). Our half wave...

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