High Performance OD 4.0 Longpass Filters
Original price was: $194.00.$95.99Current price is: $95.99.
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Our High Performance Longpass filters feature high transmission in the pass band combined with superior blocking in the rejection band. With a rejection band optical density of 4.0 combined with >91% in the pass band these filters are ideal for a wide variety of applications. Eliminate stray light by creating custom bandpass filters when combined with our TECHSPEC® High Performance Shortpass Filters.
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/cm2 @ 532nm, 10ns. Please contact us if you require a filter with a higher LIDT value.
Our TECHSPEC® Rotating Filter Wheel can be used for applications requiring a variety of filters.
- Cut-On Slope <1%
- Rejection OD ≥ 4.0
- ≥91% Transmission in Pass Band
- Variety of OD 4.0 Longpass Filter Kits Available
| Angle of Incidence (°) | 0 |
|---|---|
| Optical Density OD (Average) | ≥4.0 |
| Substrate | Fused Silica (Corning 7980) |
| Coating | Hard Coated |
| Surface Quality | 60-40 |
| Thickness Tolerance (mm) | ±0.1 |
| Transmitted Wavefront, RMS | ≤λ/4 @ 633nm |
| Cut-On Tolerance (%) | ±1 |
| Environmental Durability | Humidity per MIL-STD-810H, Section 507.6Temperature per MIL-STD-810H, Section 501.7 and 502.7 |
| Physical Durability | Adhesion per MIL-PRF-13830B, Section C.4.5.12Moderate abrasion per MIL-PRF-13830B, Section C.4.5.11Cleaning per MIL-C-48497A Section 4.5.4.2 |
| Coating Specification | Surface 1: Hard Dielectric SputteredSurface 2: AR Coated |
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