STOCK OPTICS

Longpass Optical Filters

Browse stock models and request a quotation for your required quantity.

Overview

Strahl Optics offers stock longpass filters with a selection of nominal wavelengths and diameters for 0° incidence. Each model has a specified transmission band and blocking band, allowing you to compare options against your operating wavelength range.

For other spectral or dimensional requirements, we also support custom longpass filters tailored for your project.

Common Specifications

These specifications apply to the listed models unless otherwise stated in the stock table.

MaterialH-K9L glass
Diameter Tolerance(mm)+0.0/−0.1
Thickness Tolerance(mm)±0.2
Surface Quality60-40
TWEλ/4 @633 nm
Parallelism＜30 arcsec
CWL Tolerance (%)±2%
TransmissionTavg ＞85%
Blocking DepthOD2
Edge Steepness＜3%
AOI0°
Clear Aperture＞90%

Available Stock Models

Select your models and quantities, then add them to your quote. Availability and lead time will be confirmed when we review your inquiry.

View Quote (0) →
Part NumberProductSize (mm)Thickness (mm)CWL (nm)Transmission band (nm)Blocking band (nm)Inventory statusQuantityInquiry
SO-F-LF-001Longpass Filter12.52400420~2000nm200~380nmIn stock
SO-F-LF-002Longpass Filter12.52450470~2000nm200~435nmIn stock
SO-F-LF-003Longpass Filter12.52500520~2000nm200~485nmIn stock
SO-F-LF-004Longpass Filter12.52550575~2000nm415~520nmIn stock
SO-F-LF-005Longpass Filter12.52600625~2000nm460~575nmIn stock
SO-F-LF-006Longpass Filter12.52650675~2000nm495~615nmIn stock
SO-F-LF-007Longpass Filter12.52700725~2000nm535~665nmIn stock
SO-F-LF-008Longpass Filter12.52750780~2000nm565~720nmIn stock
SO-F-LF-009Longpass Filter12.52800830~2000nm600~765nmIn stock
SO-F-LF-010Longpass Filter12.52850880~2000nm635~810nmIn stock
SO-F-LF-011Longpass Filter12.52900935~2000nm675~860nmIn stock
SO-F-LF-012Longpass Filter12.52950985~2000nm715~905nmIn stock
SO-F-LF-013Longpass Filter12.5210001035~2000nm750~955nmIn stock
SO-F-LF-014Longpass Filter12.5211001135~2000nm825~1050nmIn stock
SO-F-LF-015Longpass Filter12.5212001240~2000nm920~1165nmIn stock
SO-F-LF-016Longpass Filter12.5213001340~2000nm1010~1255nmIn stock
SO-F-LF-017Longpass Filter12.5214001450~2000nm1105~1350nmIn stock
SO-F-LF-018Longpass Filter12.5214501500~2000nm1150~1395nmIn stock
SO-F-LF-019Longpass Filter252400420~2000nm200~380nmIn stock
SO-F-LF-020Longpass Filter252450470~2000nm200~435nmIn stock
SO-F-LF-021Longpass Filter252500520~2000nm200~485nmIn stock
SO-F-LF-022Longpass Filter252550575~2000nm415~520nmIn stock
SO-F-LF-023Longpass Filter252600625~2000nm460~575nmIn stock
SO-F-LF-024Longpass Filter252650675~2000nm495~615nmIn stock
SO-F-LF-025Longpass Filter252700725~2000nm535~665nmIn stock
SO-F-LF-026Longpass Filter252750780~2000nm565~720nmIn stock
SO-F-LF-027Longpass Filter252800830~2000nm600~765nmIn stock
SO-F-LF-028Longpass Filter252850880~2000nm635~810nmIn stock
SO-F-LF-029Longpass Filter252900935~2000nm675~860nmIn stock
SO-F-LF-030Longpass Filter252950985~2000nm715~905nmIn stock
SO-F-LF-031Longpass Filter25210001035~2000nm750~955nmIn stock
SO-F-LF-032Longpass Filter25210501085~2000nm790~1005nmIn stock
SO-F-LF-033Longpass Filter25211001135~2000nm825~1050nmIn stock
SO-F-LF-034Longpass Filter25211501190~2000nm875~1100nmIn stock
SO-F-LF-035Longpass Filter25212001240~2000nm920~1165nmIn stock
SO-F-LF-036Longpass Filter25212501290~2000nm960~1205nmIn stock
SO-F-LF-037Longpass Filter25213001340~2000nm1010~1255nmIn stock
SO-F-LF-038Longpass Filter25213501390~2000nm1055~1300nmIn stock
SO-F-LF-039Longpass Filter25214001450~2000nm1105~1350nmIn stock
SO-F-LF-040Longpass Filter25214501500~2000nm1150~1395nmIn stock

Need a Different Specification?

Strahl Optics supports custom dimensions, optical specifications, and coatings. Send us your drawing or available specifications to discuss options for your project.

Discuss Custom Requirements
Scroll to Top