IR Bandpass Filter

Key Features:

  1. Ideal for Gas Analysis:
    • Application Suitability: Perfect for gas analysis, environmental monitoring, and other applications requiring precise wavelength isolation.
  2. Center Wavelengths:
    • Wavelength Range: 2.7 – 12.4 µm
    • Versatility: Available in a variety of center wavelengths to suit specific application needs.
  3. Single Substrate Interference Filter:
    • Construction: Made with a single substrate dielectric construction, ensuring durability and easy maintenance.




Infrared (IR) Bandpass Filters Specifications

Parameter Specification
Diameter (mm):  +0.00/-0.20
Optical Density OD (Average): ≥3.0
Center Wavelength CWL (nm):-
Substrate: Germanium (Ge)
Surface Quality: 60-40
Transmission (%): 80 (minimum)
Typical Applications: Carbon Dioxide Emission
Center Wavelength CWL (µm):
Angle of Incidence (°): 0
Clear Aperture CA (mm):
Full Width-Half Max FWHM (nm):
Coating: Traditional Coated
Thickness (mm): 1.00 ±0.2
Type: Bandpass Filter
Blocking Wavelength Range (nm): 200 – 16500
Full Width-Half Max FWHM (µm): 1.50 ±0.01

These specifications detail the performance and physical characteristics of SHAPE Optics Infrared (IR) Bandpass Filters, designed for applications such as carbon dioxide emission detection. With precise center wavelength and high transmission, these filters are essential for accurate and efficient infrared spectral analysis.

Performance Characteristics:

  1. High Transmission and Deep Rejection:
    • Optical Performance: Provides high transmission of desired wavelengths and deep rejection of unwanted wavelengths, making them highly effective for isolating narrow spectral regions.
  2. Durability:
    • Robust Design: Designed to withstand harsh environments, ensuring long-term reliability and performance.


  1. Environmental Monitoring:
    • Monitoring Systems: Used in systems monitoring environmental parameters through precise wavelength isolation.
  2. Security and FLIR Applications:
    • Infrared Imaging: Ideal for forward-looking infrared (FLIR) applications and other security-related uses.
  3. Biotech and Biomedical:
    • Instrumentation: Extensively used in biotech and biomedical instruments for clinical chemistry, environmental testing, colorimetry, fluorescence, and immunoassays.
  4. Quantitative Chemical Analysis:
    • Chemical Analysis: Applied in quantitative chemical applications to selectively transmit specific wavelengths while blocking others.
  5. Laser and LED Applications:
    • Laser Line Separation: Used to select discrete spectral lines from arc or gas discharge lamps (e.g., Hg, Xe, Cd) and isolate lines from lasers (e.g., Ar, Kr, Nd:YAG).
    • Laser Diode Modules and LEDs: Often used in conjunction with laser diode modules and LEDs for various optical applications.

Available Sizes:

  1. Diameter Options:
    • Sizes Available: 12.5 mm, 25 mm, and 50 mm
    • Customization: Available in various center wavelengths to meet specific application requirements.


SHAPE Optics Infrared (IR) Bandpass Filters are designed for high performance and durability, offering precise wavelength isolation for a wide range of applications. With center wavelengths spanning 2.7 to 12.4 µm and available in multiple sizes, these filters are ideal for gas analysis, environmental monitoring, security, and a variety of scientific and industrial applications. Their robust construction ensures reliable performance even in harsh environments, making them a versatile and essential component for precise optical filtering needs.

Additional information

Weight 0.5 kg
Dimensions 12 × 10 × 8 cm


There are no reviews yet.

Be the first to review “IR Bandpass Filter”

Your email address will not be published. Required fields are marked *