China Dia21mm Multi-Layer Dielectric Coating Optical Longpass Filter, Find details about China Optical Filter, Longpass Filter from Dia21mm Multi-Layer Dielectric Coating Optical Longpass Filter
Items | Description | |
Filter | Material: | UV Fused Silica |
Diameter: | 21.0+/-0.1mm | |
Thickness: | 3.0+0.0/-0.1mm | |
R1: | infinity | |
R2: | infinity | |
Flatness: | 1/4L PTV,TWD | |
Surface quality: | 40-20 | |
Parallelism: | <20arcsec | |
Clear aperture: | 1.5mm from the circumference | |
Chamfer: | 0.2mmx45deg | |
<1.0mm,chips of edges | ||
Coating: | Multi-layer dielectric coating,extend to within at least 1.0mm from circumference,surface B | |
470-2000nm,transmission waveband,surface B | ||
200-430nm,rejection waveband,surface B | ||
3%,slope factor,surface B | ||
450+/-10nm,cut-on wavelength,surface B | ||
Tavg>85%@470-1750nm,AOI:0deg,total filter | ||
Standard: | MIL-PRF-13830B |