Standard infrared bandpass filters
from AndoverBandpass filters isolate specific regions of the spectrum, simultaneously providing high transmission of desired energy, and deep rejection of unwanted energy. Available in wide or narrow bandwidths, they can be tailored to suit your specific requirements.
Constructed of hard, durable first-surface dielectric coatings on optical-quality IR-transmitting substrates, these filters will withstand normal cleaning and handling associated with any high-quality optical component.
- Useful for isolating narrow spectral regions
- Constructed of hard, durable first-surface coatings
- Available in standard and custom wavelengths up to 14µm
- Filters offered in 25mm dia, but custom sizes, shapes and optical characteristics available
Specifications
General Specifications | |
---|---|
Diameter Tolerance | +0/-0.1 mm |
Min. Clear Aperture | 21 mm Dia. |
Transmission (Typ.) | 60-80% |
Blocking | T < 0.1% Average to 30 µm |
24-hour Humidity | per MIL-C-48497A |
Moderate Abrasion | per MIL-C-48497A |
Adhesion | per MIL-C-48497A |
Optional | Mounted in threaded ring - contact our expert on the right for thread sizes |
Standard IR gas analysis bandpass filters
Custom IR Bandpass Filters
Andover can design and fabricate custom bandpass filters to suit your particular requirements. Every phase of the process is performed in-house, including thin-film coating design, mechanical design, substrate fabrication and polishing, coating, inspection and environmental testing.
We can coat a variety of substrate materials, including Germanium, Sapphire, Silicon, Calcium Fluoride, Zinc, Sulfide and Zinc Selenide. Contact our expert on the right for a quotation, whether it is for prototype quantities or production quantities.
Custom IR Bandpass Filter Specifications
Custom spectral and physical properties available upon request
Bandwidth (% of CW/L) | W/L Range | Transmission (Typ.) | Blocking | Part Numbers |
---|---|---|---|---|
>10% | 2.4 µm - 5.0 µm 5.1 µm - 6.5 µm 6.6 µm - 8.5 µm 8.6 µm - 10.3 µm 10.4 µm - 14.0 µm | 70-80% 70-80% 60-70% 60-70% 50-60% | 0.3 to 40 µm 0.3 to 15 µm 0.3 to 15 µm 0.3 to 15 µm 0.3 to 15 µm | IRFC10-25 IRFC12-25 IRFC14-25 IRFC16-25 IRFC18-25 |
1.5-10% | 2.4 µm - 5.0 µm 5.1 µm - 6.5 µm 6.6 µm - 8.5 µm 8.6 µm - 10.3 µm 10.4 µm - 14.0 µm | 70-80% | 0.3 to 40 µm 0.3 to 15 µm 0.3 to 15 µm 0.3 to 15 µm 0.3 to 15 µm | IRFC20-25 IRFC22-25 IRFC24-25 IRFC26-25 IRFC28-25 |
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Quantum Design GmbH
Roddarestigen 3
SE 182 35 Danderyd
Sweden
Phone: | +46 8 41071791 |
E-mail: | nordicqd-europe.com |