1250nm 50mm Diameter, OD 4.0 Shortpass Filter

Product Details Broad Transmission and Rejection Ranges Sharp Slope for Effective Spectral Discrimination Combine with Longpass Filter for Custom Bandpass Ranges High Performance OD 4.0 Shortpass Filters are designed with superior blocking in the rejection band while maximizing transmission in the pass band. They have a rejection band optical density of 4.0 that is combined with ≥ 91% in the pass band. This enables these filters to be ideal for a wide variety of applications. High Performance OD 4.0 Shortpass Filters can be combined with our TECHSPEC OD 4.0 Longpass Filters to create a customized precision bandpass filter. The VIS Shortpass Filter Kits include 7 filters between 400-700nm and both are ideal for integration with our filter wheels. Note: These filters are optimized for high spectral performance rather than high Laser Induced Damage Thresholds (LIDT). A typical LIDT for these filters is 1 J/cm 2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value. Specifications General Type: Shortpass Filter Note: Arrow on part indicates filter coated surface. Physical & Mechanical Properties Diameter (mm): 50.00 +0.0/-0.2 Thickness (mm): 3.00 ±0.1 Clear Aperture (%): >80 Physical Durability: Adhesion per MIL-PRF-13830B, Section C.4.5.12 Moderate abrasion per MIL-PRF-13830B, Section C.4.5.11 Cleaning per MIL-C-48497A Section 4.5.4.2 Optical Properties Angle of Incidence (°): 0 Optical Density OD (Average): ≥4.0 Cut-Off Wavelength (nm): 1,250.00 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Coating: Hard Coated Rejection Wavelength (nm): 1290 – 1650 Surface Quality: 60-40 Transmission (%): ≥91 Transmission Wavelength (nm): 575 – 1235 Transmitted Wavefront, RMS: ≤λ/4 @ 633nm (prior to coating) Slope Factor (%): <1 Cut-Off Tolerance (%): ±1 Wavelength Range (nm): 575 - 1650 Environmental & Durability Factors Environmental Durability: Humidity per MIL-STD-810H, Section 507.6 Temperature per MIL-STD-810H, Section 501.7 and 502.7 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×