The 930 nm bandpass filter is a precision optical component that "allows only an extremely narrow band near 930 nm to pass while blocking all other wavelengths." It utilizes a multilayer hard-coated interference film system, with typical performance at 0° incidence angle as follows:

• Center wavelength: 930 nm ± 2 nm

• Full width at half maximum (FWHM): 10 nm (customizable from 5–50 nm)

• Peak transmission: ≥65% (high-end products >90%)

• Blocking range: 200 nm–1200 nm, optical density OD4–OD6 (T < 0.01%)

• Operating temperature: -50 °C to +80 °C. The coating is deposited with ion-assisted technology, offering resistance to wiping, humidity, and extreme temperatures, with a lifespan exceeding 10 years.

Common packaging: Φ12.7 mm × 6 mm, Φ25.4 mm × 6 mm. Square shapes or bare chips are also available upon request.

Primary applications: Laser ranging, infrared source purification, medical blood oxygen/glucose detection, fluorescence analysis, machine vision, night vision imaging, 3D facial recognition, and any scenario requiring extraction of 930 nm signals from a broad-spectrum background.