optical uv filter

1. Ultraviolet glass has ultraviolet black glass and white glass. 2. Ultraviolet glass has good ultraviolet. 3. It has short wave and long wave which are (ZWB1,ZWB2,ZWB3 254nm/310nm/365nm) . 4. Ultraviolet white glass is a kind of colorless cut-off glass which wavelength is from 220nm to 380nm. 5. The transmission is over or equal to 89.5%. 6. At the same time, it can filter absorption visible light. 7. Mainly apply in geology survey, NDT inspection, medical analysis instrument, ultraviolet light filter.