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OPTICAL ABSORPTION SPECTROMETRY SYSTEM INCLUDING DICHROIC BEAM COMBINER AND SPLITTER
OPTICAL ABSORPTION SPECTROMETRY SYSTEM INCLUDING DICHROIC BEAM COMBINER AND SPLITTER
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机译:包含双光束合束器和分光器的光学吸收光谱系统
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摘要
An optical absorption spectrometry system includes first and second light sources, a dichroic beam combiner and a wavelength selective module. The first light source emits first light having first wavelengths within a first wavelength range, and the second light source emits second light having second wavelengths within a second wavelength range different from the first wavelength range. The dichroic beam combiner includes a predetermined first reflectance/transmission transition region, the dichroic beam combiner being configured to transmit a first portion of the first light and to reflect a second portion of the second light to provide combined light. The wavelength selective module is configured to disperse the combined light received at an entrance aperture, to select a sample wavelength range of the dispersed light as sample light, and to output the sample light having the selected sample wavelength range from an exit aperture for illuminating a sample.
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