425nm 50mm Dia., High Performance Longpass Filter

Product Family Description

• Cut-On Slope <1%
• Rejection OD ≥ 4.0
• ≥91% Transmission in Pass Band
• Variety of OD 4.0 Longpass Filter Kits Available

TECHSPEC® High Performance OD 4.0 Longpass Filters feature high transmission in the pass band combined with superior blocking in the rejection band. Due to 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. TECHSPEC® High Performance OD 4.0 Longpass Filters are hard coated, with a hard dielectric sputtered as the first surface and AR coating as the second. Eliminate stray light by creating custom bandpass filters when combined with 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.

 TECHSPEC® Rotating Filter Wheel can be used for applications requiring a variety of filters.