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!


UV Filter

November 28, 2016

UV shortpass filter (Blocking range ~ 700nm)

Magnetron sputtering technology enables unprecedented UV filter performance.

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Light Guide Rod Unit

November 21, 2016

Light Guide Rod Unit

Point irradiation in liquid / a small spot

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Astronomical filters page

June 10, 2016

Astronomical filters

Information on astronomical filters is updated.

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253rd American Chemical Society National Meeting & Exposition

March 9, 2017

253rd American Chemical Society National Meeting & Exposition / Booth No. 1427

April 2-4 2017, Moscone Center, San Francisco, CA, USA

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2016 Materials Research Society Taiwan

October 11, 2016

2016 Materials Research Society Taiwan

November 19-20 2016, Industrial Technology Research Institute, Hsinchu, Taiwan

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2016 MRS Fall Meeting and Exhibit

July 8, 2016

2016 MRS Fall Meeting & Exhibit / Booth No. 921

November 29 - December 1 2016, Hynes Convention Center, Boston, USA

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Products and Applications

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