BP1730-26 대역통과 필터(CWL=1730nm, FWHM=26nm)

Plastic Sorting & Recycling

• Many industrial plastics (like polyethylene and polypropylene) have distinct spectral footprints in the C-H overtone region. A 1730 nm filter allows machine vision systems to identify and sort specific polymer types that might look identical in the visible spectrum.

Recommended Light Sources

• Broadband Tungsten-Halogen Lamps: These provide a stable, continuous spectrum across the entire SWIR range (900–2500 nm), which is critical for hyperspectral imaging systems that need to compare the specific absorption at 1730 nm against "transparent" reference wavelengths to accurately confirm polymer identity.
• High-Power SWIR LED Arrays (Peak 1720 nm): These offer significantly higher energy efficiency and longer operational lifespans than halogen bulbs, reducing maintenance downtime on high-speed lines; a 1720 nm LED provides strong spectral overlap with the BP1730-26 filter while minimizing heat transfer to sensitive plastic samples.

Hydrocarbon Sensing

• Detecting oil leaks, fuel spills, or measuring the concentration of organic compounds in a mixture.

Recommended Light Sources

• SWIR LED (Peak 1720 nm): Offers a compact, low-power, and robust solution ideal for portable handheld leak detectors; the LED's emission spectrum overlaps well with the 1730 nm filter passband to efficiently excite the hydrocarbon C-H bonds without the heat generation or fragility of halogen bulbs.
• Tungsten-Halogen Lamp: Provides a highly stable, high-brightness broadband output necessary for fixed analytical instruments measuring organic compound concentrations; its wide spectrum allows for simultaneous referencing (using a second filter at a non-absorbing wavelength) to cancel out signal drift and ensure accurate quantitative readings.