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Handheld Spectrometer Wirelessly Transmits Data to Smartphone

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A wireless handheld spectrometer that is smartphone-compatible could make it easier and more economical to acquire spectral images of everyday objects and in the future could be used for point-of-care medical diagnosis in remote locations. The device can detect wavelengths from 400 to 676 nm. A white LED array lamp is used as the light source. The wavelength resolution of the spectrometer is about 17 nm. Rather than using a smartphone camera to acquire images, the new spectrometer uses a commercially available CMOS camera that wirelessly transmits images to a smartphone. Using this...Read full article

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