Meeting the need for a reliable publication on the topic and reflecting recent breakthroughs in the field, this is a comprehensive overview of color quality of solid-state light sources (LED-OLED and laser) and conventional lamps, providing academic researchers with an in-depth review of the current state while supporting lighting professionals in understanding, evaluating and optimizing illumination in their daily work.

INTRODUCTIONBrief History of the Development of Artificial Light SourcesLighting Quality AspectsAims, Functionality and Applications of Lighting and Light SourcesFluorescent Lamps and the Development of the Color Rendering IndexColor Rendering Index: Current DefinitionOther Metrics of Color Quality: A Systematic View of Color Quality (Color Rendition) MetricsAims and Structure of the BookCOLOR APPEARANCE: PHENOMENA AND METRICSHuman Eye Physiology, Color Perception and Cognitive ColorColor Appearance PhenomenaDistortion of Color Appearance Under Different Artificial Light SourcesThe System of Color Quality MetricsSystem of Subjective Attributes of Color Quality and Their DescriptorsSummary: Lessons Learnt for Lighting PracticeTHE WAITE POINT OF THE LIGHT SOURCEColor Matching: the Metameric EffectChromaticity of Unique WhitePreferred White TonesSummary: Lessons Learnt for Lighting PracticeOBJECT COLORS: SPECTRAL REFLECTANCE, GROUPING OF COLORED OBJECTS AND COLOR GAMUT ASPECTSSampling, Grouping and Weighting of Object Colors Based on Their Spectral Reflectance PropertiesSpectral Reflectance of FlowersSpectral Reflectance of Skin TonesSpectral Reflectance of Art PaintingsThe Leeds Database of Object ColorsSummary: Lessons Learnt for Lighting Practice VISUAL COLOR QUALITY ASPECTS: REULTS AND CONSEQUENCES FROM VISUAL STUDIESAims of Visual Color Quality StudiesMethodology of Visual Color Quality StudiesVisual Study on Color Fidelity (Color Realness) Based on Color Difference AdjustmentVisual Study on the Semantic Interpretation of Color Differences and Color Rendering IndicesVisual Color Quality Studies on Color Preference, Vividness and NaturalnessVisual Color Quality Studies on Color Discrimination and Color GamutVisual Experiments on Color Memory and on Cognitive Color Aspects ColorSummary: Lessons Learnt for Lighting PracticeVISUAL COLOR QUALITY EXPERIMENTS AT THE TECHNISCHE UNIVERSITÄT DARMSTADTMotivation and Aim of the Visual Color Quality ExperimentsExperiment on Chromatic Visual ClarityBrightness Matching of Strongly Metameric White Light SourcesCorrelated Color Temperature Preference for White ObjectsColor Temperature Preference of Illumination with Red, Blue and Colorful Object CombinationsVisual Experiments on Color Quality in a Three-Chamber Viewing BoothExperiments on Color Preference, Naturalness and Vividness in a One-Chamber Viewing BoothExperiment on Long-Term Memory ColorsSummary: Lessons Learnt for Lighting PracticeCORRELATIONS OF COLOR QUALITY METRICSSample Set of Test Light SourcesCorrelations Among Color Quality Metrics Using Their Own Test Color SamplesCorrelations Among Color Quality Metrics Using Different Sets of Test Color SamplesSummary: Lessons Learnt for Lighting Practice OPTIMIZATION OF LED LIGHT ENGINES FOR HIGH COLOR QUALITYOptimization Concepts for Lighting DesignState of the Art of LED TechnologyComprehensive Spectral Modeling of LEDs (Colored Semiconductor LEDs and Phosphor- Converted White LEDs)Optimization Schemes for the Spectral Design of LED Light EnginesOptimization for Color Fidelity (CIECRI 2012, CIE Ra, IES Rf 2015)Comprehensive Optimization for Different Color Quality Aspects Comprehensive Multi-Metric Color Quality Optimization by the Variation of LED Peak Wavelengths and LED Phosphor SystemsSummary: Lessons Learnt for Lighting PracticeHUMAN CENTRIC LIGHTING AND COLLOR QUALITYPrinciples of Human Centric Lighting and Color QualityThe Circadian Stimulus in the Rea et al. ModelSpectral Design for HCL Co-Optimizing Circadian Aspects and Color QualitySummary: Lessons Learnt for Lighting PracticeCONCLUSIONS AND OUTLOOK