The FSQ-GG400 Colored Glass Longpass Filter is a 50.8 x 50.8 mm square, 400 nm cut-on optical filter made of Schott GG400 filter glass. This long-wave pass edge filter is precision polished for demanding research or OEM applications.

FSQ-GG400彩色玻璃长通滤波器是由肖特GG400滤光玻璃制成的50.8×50.8 mm方400 nm的直通光学滤波器。这种长波通边滤波器是经过精密抛光,以满足需要的研究或OEM应用。