Optical Filters

Optical Instruments


International Agency

About Us

image Optical Filters

image model MAX-303

image Astronomical Filters

image model HAL-320

Asahi has developed photonics tools for over 45 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 national holidays from April 28th 2018 to May 6th 2018.
Please note that we are not able to respond to your inquiry and order during
this period. We appreciate your kindly understanding.



November 22, 2017

New version of the xenon light source 300W, MAX-350

Heatless illumination with desired wavelengths for photochemical research

>>Read more

UV Filter

November 28, 2016

UV shortpass filter (Blocking range ~ 700nm)

Magnetron sputtering technology enables unprecedented UV filter performance.

>>Read more

Light Guide Rod Unit

November 21, 2016

Light Guide Rod Unit

Point irradiation in liquid / a small spot

>>Read more


SPIE 2018

March 15, 2018

SPIE Astronomical Telescopes and Instrumentation 2018 / Booth No. 426

June 12-14 2018,
Austin Convention Center
Austin, USA

>>Read more

analytica 2018

March 5, 2018

analytica 2018 / Hall A2 Booth No. 328

April 10-13 2018,
Messe Munchen,
Munich, Germany

>>Read more

254th American Chemical Society National Meeting & Exposition

September 28, 2017

2017 MRS Fall Meeting & Exhibit / Booth No. 1028

November 28-30 2017,
Hynes Convention Center,
Boston, USA

>>Read more

Products and Applications

image UV Filters image Photochemistry image SDSS filters image Solar Simulator image Monochromatic Illuminator