株式会社トーカイは、最先端の薄膜技術でオプトエレクトロニクス分野をリードし続けています。金属スパッタ膜蒸着も可能。情熱をいっそう強く持って事業展開をしています。

It is a band-pass filter (Multiple-Band-Pass-Filter) that transmits arbitrary multiple wavelengths.
A bandpass filter with multiple transmission bands is realized with a single filter.
Capable of handling from visible light to near-infrared light.
It is helpful in various scenes of our life.