Stray Light Glasses are precision glass cut-off filters designed to qualify the stray light level in ultraviolet and visible spectrometers. These filters nominally cut off at 280 nm, 360 nm, and 450 nm, with each individual filter certified to account for wavelength variations of up to ±10 nm due to glass melt differences.
Stray light, also known as stray radiant energy or power, refers to any undesired light reaching the detector outside the selected spectral bandwidth. It originates from optical imperfections, internal reflections, or leaks in the spectrometer optical system and causes measurement errors by artificially increasing detected signal, especially at high absorber concentrations. Regular checking of stray light using these filters helps monitor instrument optical condition and ensures accuracy in quantitative analysis.
Stray Light Glasses are precision glass cut-off filters designed to qualify the stray light level in ultraviolet and visible spectrometers. These filters nominally cut off at 280 nm, 360 nm, and 450 nm, with each individual filter certified to account for wavelength variations of up to ±10 nm due to glass melt differences.
Stray light, also known as stray radiant energy or power, refers to any undesired light reaching the detector outside the selected spectral bandwidth. It originates from optical imperfections, internal reflections, or leaks in the spectrometer optical system and causes measurement errors by artificially increasing detected signal, especially at high absorber concentrations. Regular checking of stray light using these filters helps monitor instrument optical condition and ensures accuracy in quantitative analysis.
