How do you build the best polarizers and optical filters? With an eye firmly fixed on the future — and one on the past. API delivers new applications and custom solutions backed by nearly six decades of manufacturing experience. It’s what makes us the trusted name across aircraft, electronics, photographic, animated display, consumer, and scientific industries.
Turn your product ideas into specialized solutions by partnering with API, a global leader in the field of optical technology. Our expertise in polarization is backed by 60 years of experience, industry-leading product development, and excellent quality, including ISO 9001:2015 and FAA-PMA certification.
polarizers & optical filters 
