Optical Filters and Instruments | Asahi Spectra USA Inc.

Asahi has developed photonics tools for over 50 years, and now provides state-of-the-art optical filters and instruments to overseas customers.

We are passionate about contributing to the development of optical industries and progress of sciences with our cutting-edge technology. Stop by our website, find the best solutions, and let's discuss what you require for your science and business with Asahi!

Holiday Information

We will be closed for winter holidays from December 30, 2025 to January 5, 2026.
We will not be able to respond to your inquiry and order during this period.
We appreciate your kindly understanding.

Optical Filters

Asahi Spectra offers various types of optical filters as standard. Our optical filters are manufactured by hard coating, such as ion assisted deposition (IAD) and magnetron sputtering (MS). These coating methods achieve hard coating, excellent durability for environment (humidity, low or high temperature, thermal shock or vacuum) and stability of spectral performance.

Optical Instruments

Asahi Spectra offers various types of light sources such as xenon light sources, solar simulators, a halogen light source, and a LED light source. We offer not only light sources but also a monochromator and a transmittance meter. Depending on your application, we will provide the best solution.