© 2019

Circadian Lighting Design in the LED Era


  • Explores how lighting systems based on LED sources can positively influence the human circadian system

  • Describes the results of original research on natural lighting and systems for artificial circadian lighting

  • Presents up-to-date guidelines for circadian lighting design


Part of the Research for Development book series (REDE)

Table of contents

About this book


This book explores how lighting systems based on LED sources have the ability to positively influence the human circadian system, with benefits for health and well-being. The opening chapters examine the functioning of the human circadian system, its response to artificial lighting, potential health impacts of different types of light exposure, and current standards in circadian photometry. A first case study analyzes the natural lighting available in an urban interior, concluding that it is unable to activate the human circadian system over the entire year. Important original research is then described in which systems suitable for artificial circadian lighting in residential interiors and offices were developed after testing of new design paradigms based on LED sources. Readers will also find a detailed analysis of the LED products available or under development globally that may contribute to optimal artificial circadian lighting, as well as the environmental sensors, control interfaces, and monitoring systems suitable for integration with new LED lighting systems. Finally, guidelines for circadian lighting design are proposed, with identification of key requirements.


Light-emitting diodes Human circadian system Circadian photometry Artificial circadian lighting Impact of lighting on health Natural lighting Luminaires Smart homes Environmental sensors Control interfaces Monitoring systems

Authors and affiliations

  1. 1.Laboratorio Luce, Department of DesignPolitecnico di MilanoMilanItaly

About the authors

Maurizio Rossi works at the Polytechnic University of Milan (Politecnico di Milano), where he is Associate Professor of Industrial Design and Scientific Director of the Laboratorio Luce, the largest Italian university laboratory on design of lighting and color, photometry, colorimetry, and visual perception. Dr. Rossi is Director of the university’s Master’s courses on Lighting Design & LED Technology and Color Design & Technology. Over the past 15 years, he has supervised more than 20 research projects at Laboratorio Luce, including a number on topics related to the well-being of people. His research and teaching work has involved collaboration with over thirty companies. Dr. Rossi is President of the Associazione Italiana Colore and editor-in-chief of the journal Color Culture and Science. He is a member of the Executive Committee of the AIC (International Colour Association) and a fellow of the AIDI (Associazione Italiana di Illuminazione), SID (Società Italiana Design), and ILA (International Light Association). Dr. Rossi is the author of four books and 35 journal papers and has also edited 15 books.

Bibliographic information

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