Short and Long-Wave Pass "Edge" Filters
  • Steep transition slope
  • High rejection/transmission
  • Excellent temperature stability
  • Cut-on/Cut-off wavelengths available from 400 nm to 1000 nm
  • Blocked to X-ray (LWP) and 1200 nm (SWP)

Product Description

Corion long and short-wave pass filters are manufactured using methods and materials designed to deliver the highest spectral performance while providing a robust construction capable of withstanding variable climatic conditions. Transition slopes of <6% are established by a dielectric thin-film coating. Use of thin-film coating for edge definition enables much steeper transitions than are available from colored-glass edge filters. The coatings are optimized to provide a wide band of high average transmission. Typical average transmission is >80% for long-wave pass and >65% for short-wave pass filters.

Out-of-band rejection (blocking) of >OD 3 to X-ray for LWP filters and >OD 3 to 1200nm for SWP filters is accomplished by a combination of reflection from dielectric thin-film coatings, and absorption from filter glasses on some models. We manufacture these filters using our patented Stabilife coatings in a laminated construction to facilitate assembly of multiple components. The resulting filter assemblies deliver excellent field life in harsh climatic conditions.

Unlike colored glass filters, the center wavelength will shift to shorter wavelengths with an increase in angle of incidence. This can be useful for tilt-tuning these filters to your exact wavelength. A custom bandpass filter with excellent performance can be constructed using a combination of a short-wave pass and a long-wave pass filter.

These filters are available individually and in sets. The sets consist of one of each, of either of the short or long-wave pass filters listed. They are shipped in a hardwood box for convenient storage and protection.

To discuss your specific requirements, please call 508-528-4411 to speak directly to one of our Technical Sales Engineers, or email us at

Ordering Information

Short-Wave Pass Filters
ModelCut-on/Cut-off Wavelength
λc@ 50% of Tpk (nm)
Minimum Spectral range of
Transmittance λ1 to λ2 (nm)
Oriel ModelCorion Model
10SWF-450-B450 ± 5415–44057371LS-450-F
10SWF-500-B500 ± 5415–49057373LS-500-F
10SWF-550-B550 ± 5415–54057375LS-550-F
10SWF-600-B600 ± 5415–59057377LS-600-F
10SWF-650-B650 ± 5415–64057379LS-650-F
10SWF-700-B700 ± 6440–68557381LS-700-F
10SWF-750-B750 ± 6475–73557383LS-750-F
10SWF-800-B800 ± 6475–78557385LS-800-F
10SWF-850-B850 ± 6475–83557387LS-850-F
10SWF-900-B900 ± 7475–88057389LS-900-F
10SWF-950-B950 ± 7475–93057391LS-950-F
10SWF-1000-B1000 ± 7475–98057393LS-1000-F

Long-Wave Pass Filters
ModelCut-on/Cut-off Wavelength
λc@ 50% of Tpk (nm)
Minimum Spectral range of
Transmittance λ1 to λ2 (nm)
Oriel ModelCorion Model
10LWF-400-B400 ± 5410–120057345LL-400-F
10LWF-450-B450 ± 5460–120057347LL-450-F
10LWF-500-B500 ± 5510–120057349LL-500-F
10LWF-550-B550 ± 5560–120057351LL-550-F
10LWF-600-B600 ± 5610–120057353LL-600-F
10LWF-650-B650 ± 5660–120057355LL-650-F
10LWF-700-B700 ± 6715–120057357LL-700-F
10LWF-750-B750 ± 6765–120057359LL-750-F
10LWF-800-B800 ± 6815–120057361LL-800-F
10LWF-850-B850 ± 6865–120057363LL-850-F
10LWF-900-B900 ± 7920–120057365LL-900-F
10LWF-950-B950 ± 7970–120057367LL-950-F
10LWF-1000-B1000 ± 71020–220057369LL-1000-F


Minimum Active Area20.2 mm
Surface Quality80-50 scratch-dig; F/F per MIL-F-48616
Diameter25.4 +0/-0.5 mm
Thickness2.0 to 7.6 mm
Angle of IncidenceNormal
Minimum Average Transmittance - Long Wave Pass80%
Minimum Average Transmittance - Short Wave Pass65%
Rejection Band (spectral) - Long Wave PassX-Ray to 0.85 λc ≤0.1% T or 10-3
Rejection Band (spectral) - Short Wave Pass1.2 λc to 1200 nm ≤0.1% T or 10-3
Slope<6% where slope%=100% (λ80%Tpk-λ5%Tabs)/λ5%Tabs
Effective Index of Refraction ne1.7
Wavelength Shift with Temperature - Long Wave Pass≤ 0.025 nm/°C
Wavelength Shift with Temperature - Short Wave Pass≤ 0.02 nm/°C
Humidity ResistanceMIL-STD-810E, Method 507.3, Procedure III Modified to 7 cycles
Temperature Range-50 °C to +100 °C
CleaningNon-abrasive method, acetone or isopropyl alcohol on lens tissue recommended