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No references found			Combining the signals from the three types of cones creates what is called The Spectral Luminous Efficiency distribution of a 'standard eye'. Spectacle lens tints with practical applications by Wilkinson, Peter / Optometry Today Based in part upon work by Gibson and Tyndall at NBS in 1923, the International Commission on Illumination (CIE) defined an average spectral response for the human eye for well-illuminated conditions, which is termed the spectral luminous efficiency for photopic vision. The candela and photometric and radiometric measurements by Parr, Albert C. / Journal of Research of the National Institute of Standards and Technology			Spectral Band Replication spectral bands spectral bandwidth spectral centroid spectral characteristic spectral class spectral classification Spectral Classification of Stars spectral color Spectral Concentration spectral density spectral dimension spectral directional reflectance factor spectral emissivity spectral energy distribution spectral extinction spectral factorization spectral function spectral hygrometer spectral irradiance Spectral Line Spectral Lines, Width of spectral locus spectral luminosity classification Spectral Luminous Efficacy spectral luminous efficiency spectral measure spectral photography spectral power distribution spectral pyrometer spectral radiance spectral radiance factor spectral radius spectral reflectance spectral regions Spectral Resolution of a Function Spectral Resolution of a Linear Operator Spectral Resolution of a Random Function spectral response spectral selective photoelectric effect Spectral Sensitivity Spectral Series spectral temperature Spectral Term spectral theorems spectral transmission spectral type spectral width spectral-shift reactor spectre spectrobolometer			Spectral Imagery Technology Applications Center SPectral Imaging of Correlative Events Spectral Information Divergence Spectral Information Measure Spectral Information Technology Applications Center Spectral Infrared Interferometric Telescope Spectral Infrared Remote Imaging Transition Testbed Spectral irradiance Spectral irradiance Spectral Irradiance Model Spectral karyotyping Spectral karyotyping Spectral karyotyping Spectral karyotyping Spectral Lanczos Decomposition Method Spectral Latent Heating Spectral lemur spectral line spectral line Spectral line broadening Spectral line broadening Spectral line width Spectral line width Spectral lines Spectral lines Spectral Lines, Width of Spectral linewidth spectral locus spectral luminosity classification spectral luminous efficacy spectral luminous efficiency Spectral measure Spectral Mesosphere Lower Thermosphere Model Spectral Methods and Multirate Signal Processing Spectral Ocean Wave Model Spectral Operations Resource Center Spectral Optical Coherence Tomography Spectral Phase Interferometry for Direct Electric-Field Reconstruction spectral photography Spectral power density Spectral power distribution Spectral power distribution Spectral power distributions Spectral Presaturation by Inversion Recovery Spectral Processing and Manipulation Spectral Properties of Fluorescein in Solvent spectral pyrometer Spectral radiance Spectral radiance Spectral radiance spectral radiance factor Spectral radius Spectral Recording Spectral reflecance Spectral reflecance Spectral reflecance Spectral reflectance Spectral reflectance Spectral reflectance Spectral Reflectance Imaging Biosensor spectral regions

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