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Colour Preference Depends on Colour Temperature, Illuminance Level and Object Saturation - a New Metric. L&E 27 (6) 2019

Light & Engineering 27 (6)

Volume 27
Date of publication 12/20/2019
Pages 137-151

PDF

Colour Preference Depends on Colour Temperature, Illuminance Level and Object Saturation - a New Metric. L&E 27 (6) 2019
Articles authors:
Quang Trinh Vinh, Peter Bodrogi, Tran Quoc Khanh, Tran Thuy Anh

Quang Trinh Vinh, Ph.D. He deals with lighting engineering issues of solid-state lighting and automation processing. He obtained his M. Sc. degree at the Hanoi University of Mining and Geology. He received his Ph.D. degree on LED modelling, LED optimization, LED colour mixing and LED phosphor mixing as well as hybrid LEDs at the Technische Universitat Darmstadt in Darmstadt, Germany. Currently, he is a research fellow at the Technische Universitat Darmstadt

Peter Bodrogi, Dr. He is Optoelectronic Engineer at ERCO GmbH, Lüdenscheid, Germany. He studied physics at the Lorand Eotvos University in Budapest, Hungary. He obtained his Ph.D. degree in Information Technology from the University of Pannonia (Veszprém, Hungary). He obtained his Lecture Qualification Thesis (habilitation) in Lighting Engineering from the Technische Universität Darmstadt (Darmstadt, Germany). His interests concern lighting engineering, colorimetry, colour science, modern software technologies and LED lighting systems

Tran Quoc Khanh, Dr., Prof. He is studied from 1980 to 1985 Machine Engineering and Technical Optics before he finished his Ph.D. thesis on the Spectroscopy of UV‑VIS Radiation Sources in 1989. Between 1990–1997 and 1997–1999, he was laboratory leader and project manager for photometry, radiometry and colorimetry at PRC Krochmann and Gigahertz Optik. Between 2000 and 2006, he was technical manager for optical imaging systems at ARRI, developed a digital CMOS camera, a film scanner and a laser recorder and optimized colour image processing for cinematography and TV signal processing. In 2005, he completed his Lecture Qualified Thesis (habilitation) on colour appearance and visual performance and started his current work as a Professor for Lighting Technology and Solid‑State Lighting at the Technische Universität Darmstadt. He is conducting research and development projects on LED lighting technology. He is also the Chairman of the International Symposium for Automotive Lighting (ISAL). He is author of several books and scientific articles and inventor of patents on lighting technology and related subjects. He is currently Dean of the Department of Electrical Engineering and Information Technology at the Technische Universität Darmstadt

Tran Thuy Anh, Ph.D. Currently, she is an Associate Professor at the Vietnam National University in Hanoi. She obtained her Ph.D. from Vietnam National Institute of Culture and Arts Studies. She is an expert in conducting empirical research, textual analysis, as well as content analysis. Her research interests consist of various culture-related issues, including techno-culture and consumption behaviour

Abstract:
A new metric (Rp,2019) is defined as a light source to predict the subjective colour preference impression of an interior scene containing coloured objects illuminated by this light source. The metric is based on the CIE2017 Colour Fidelity Index and the TM-30-15 Colour Vector Graphic. In addition to its dependence on object saturation level, the metric also includes the dependence on correlated colour temperature and on the characteristic illuminance level at the plane on which the coloured objects are arranged. The scale of the metric is labeled with criterion values corresponding to “good” or “very good” colour preference. The aim is to help lighting designers and engineers to determine the illuminance level, colour temperature and object saturation necessary to achieve “good” or “very good” colour preference.
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