are used for selecting or filtrating the specific wave band, they are widely used in optical instrument, industrial measurement, environment protection and many other applications.
Filter | are used for selecting or filtrating the specific wave band, they are widely used in optical instrument, industrial measurement, environment protection and many other applications. We can provides short pass filter, long pass filter, band pass filter, color glass filter, etc. The dimension and coating index can be customized according to customer requirements. Bandpass Filters Longpass Filters Shortpass Filters Neutral Density Filters Color and Absorptive Optical Filters Dichroic Filters Fluorescence Optical Filters Diffusers |
Material: | colored glass, Optical glass N-BK7, Silicon or Germanium B270 Fused Silica, Sapphire and so on |
Diameter (Φmm) | 4mm to 300mm |
Diameter Tolerance (mm) | +/-0.2 (General), +0.0/-0.02 (High Precision) |
Clear Aperture | up to 90% (Small Size), >95% (Large Size) |
Parallelism | 3 min. (General), 3 sec. (High Precision) |
Surface Quality | 80/50 (General), 10/5 (High Precision) |
Flatness (per 25mm@633nm) | λ(General), λ/10 (High Precision) |
Chamfer | 0.25-0.5 mm face width x 45° ± 15° |
Coating | AR, HR, PR, HR+HT coating Upon request |
