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FLORENCE     Florence –  the capital of the Tuscany region and the cradle of Renaissance   We opted for Flix Bus while traveling from Venice to Florence. The road journey takes about three and a half-hour. In Florence, it terminates at the rear end of Santa Maria Novella (SMN) train station. One of Italy’s busiest stations, it got its name from Santa Maria Novella Church just across the plaza from the main entrance. We debarked at the station and refreshed ourselves at McDonald's before hiring a cab for our hotel. Florence, popularly known as ‘Firenze’ by the Italians, is located in central Italy. This dreamy city with a romantic name is the regional capital of the lovely Tuscany region.   Columbus Hotel, where we stayed, is located in Lugarno District. We always prefer to book our hotels through Booking.com as we always land up getting good hotels at good locations. Despite being a little away from the heart of the city and Santa Maria Novella station

Human Centric Lighting - Prof Warren Julian's presentation

What is Human Centric Lighting?- An illuminating talk by Professor Warren Julian

Human Centric Lighting Design is an old Concept, given that our circadian clock runs on a 24-hour cycle. But It was difficult to maintain the circadian entrainment effectively with traditional lights. With the advent of LED, having expanded color capabilities, and seamless control on color changes and dimming, a lot of research is underway to make our visual system respond more effectively to the light stimulus. Dynamic Tunable LED, varying lighting has always been human-centric Spectrum from 6500K to 2700K has increased the circadian effectiveness of the human system. Increasing daytime alertness and nighttime sleep can be addressed in the near future by acutely synchronizing the circadian system of human beings with proper doses of red and blue light. A brilliant presentation on Human Centric Lighting was made at the Hong Kong International Lighting Fair 2017 by Professor Warren Julian of Sydney University. I have tried to reproduce the original talk as much as possible save for some very minor modifications. Hope you will enjoy reading it. So crisp and lucid that even a person with no knowledge of light and vision can gain rich insights into what Human Centric Lighting is? 

Hong Kong International Lighting Fair (Autumn Edition) 2017
Putting People First —
the Revolution of Human-centric Lighting
27th October 2017
Emeritus Professor Warren Julian, University of Sydney
Human-centric lighting:
its origins and implications

The Talk >>>>


 >What lighting is about
› We see with our eyes (part of our brain)
› Two visual systems plus one for our body clock
› We are really daytime people
› This is what you really see
› Revealing contrast
› What human-centric lighting is
› Concluding remarks


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Warren Julian said…
Dear Biswajit,

Thanks. It looks good.

All the very best for 2017,


WARREN JULIAN AM | Emeritus Professor
Architecture, Design and Planning

Wilkinson Building G04 | The University of Sydney | NSW | 2006

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