White gloved hand holding an example Quarter Wave & Half Wave Retarder Film | American Polarizers, Inc.

Quarter Wave, Half Wave, and Full Wave Retarder Films

API quarter, half, and full wave retarders are high quality single layer polycarbonate films for excellent performance and clarity. Wave retarders are birefringent materials that alter (retard) the polarization state or phase of light traveling through them.

Our wave retarders feature uniform birefringence, very low haze, good environmental stability and excellent wide-angle view performance. API can laminate quarter wave retarders in 560nm (140nm OPD) and half wave retarders in 560nm (280nm OPD) for increased durability and optical performance.

  • 1/4 wave, 1/2 wave, and full wave films
  • High clarity
  • Uniform birefringence
  • Polycarbonate based films
  • Can be laminated between glass or acrylic for increased durability
  • In-house laser & waterjet cutting for acrylic and glass laminates

Want to learn more about wave retarders? See how it works.