Dia21mm Multi-Layer Dielectric Coating Optical Longpass Filter
Specification:
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 |
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