Infrared Neutral Density Filters
Metallic Coatings: The attenuation properties of these filters are achieved through metallic coatings. The metal alloy coatings are carefully selected and deposited to ensure precise control over light transmission.
Substrate Material: Germanium is used as the substrate material due to its excellent properties in the IR spectrum. Germanium substrates ensure optimal performance and durability in demanding applications.
Broad Wavelength Coverage: These filters are designed to attenuate radiation over a wide range in the IR region, optimized at 2.2 microns. They are capable of covering wavelengths up to 15 microns, making them suitable for various IR applications.
Applications: Thermal Imaging, Spectroscopy, Laser Systems, Sensor Protection, etc.
Infrared Neutral Density Filters (ND Filters) from Kingwin Optics are specialized filters designed to provide even attenuation across selective portions of the infrared (IR) spectrum. Unlike complete dielectric or absorption filters, Kingwin Optics’ ND IR filters utilize a combination of absorption and reflection to reduce light intensities effectively. These filters consist of metal alloy coatings deposited on substrates chosen specifically for their performance in the IR wavelength region.
Specifications:
| Substrates | Germanium |
| Flatness | 2-4 waves per 25mm |
| Transmission | 10%, 20% or custom |
| Clear Aperture | +/-0.2mm, 90% of the outside dimension |
| Dimension Tolerance | ±0.2mm |
| Parallelism | 3-5 arc minutes |
| Surface Quality | 80/50 S/D |
| Diameter Range | Custom |
| Aperture BBAR Coating on back surface S2 | Optional |
Key Features:
- Metallic Coatings: The attenuation properties of these filters are achieved through metallic coatings. The metal alloy coatings are carefully selected and deposited to ensure precise control over light transmission.
- Substrate Material: Germanium is used as the substrate material due to its excellent properties in the IR spectrum. Germanium substrates ensure optimal performance and durability in demanding applications.
- Broad Wavelength Coverage: These filters are designed to attenuate radiation over a wide range in the IR region, optimized at 2.2 microns. They are capable of covering wavelengths up to 15 microns, making them suitable for various IR applications.
Applications:
- Thermal Imaging: Ideal for controlling the intensity of IR radiation in thermal imaging systems, ensuring accurate and reliable imaging results.
- Spectroscopy: Used in IR spectroscopy to manage the intensity of IR light reaching the detector, improving measurement accuracy and dynamic range.
- Laser Systems: Essential for adjusting the power of IR lasers in scientific and industrial applications, ensuring precise control and safety.
- Sensor Protection: Protects IR sensors from overexposure, extending their lifespan and maintaining the integrity of measurements.
Kingwin Optics’ Custom Infrared Neutral Density Filters offer exceptional control over IR light intensities. The combination of metallic coatings on germanium substrates ensures precise attenuation across a broad wavelength range, making these filters indispensable for advanced IR applications. Whether for thermal imaging, spectroscopy, laser systems, or sensor protection, trust Kingwin Optics to deliver high-performance IR ND filters tailored to meet your specific needs.
