API manufactures a wide range of circular polarizers to best meet your display needs. Our circular polarizer filters are used in a wide variety of applications and industries.

We offer our circular polarizer filters in plastic film, acrylic and glass laminations. We also offer anti-reflection, anti-glare, and conductive coatings for our acrylic and glass filters. We produce left and right handed circular polarizers and can provide various transmissions and colors.

We offer circular polarized filters with transmissions from 10% up to 45% (with AR coatings).

Excellent quality, high clarity, excellent weatherability, and numerous options make our circular polarizers the best choice in the industry.