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!


Astronomical filters page

June 10, 2016

Astronomical filters

Information on astronomical filters is updated.

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Reference page

April 26, 2016

The list of reference papers for MAX-303

Asahi created the new page of the reference papers for the MAX-303.

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new u' band filter

February 29, 2016

The new u' band filter for the One Degree Imager

Asahi was successful in coating the large 445 mm x 428 mm u' band filter

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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