AIA-CircadianLight-ZIW

WELCOME AN EMPIRICAL APPROACH TO LIGHTING AND WELL-BEING Official AIA provider number: 10032454 Zaniboni Lighting Fabio Zaniboni.

WELCOME Best Practice At the end of this 1h presentation 1LU/HSW will be reported to AIA CES L e a r n i n g U n i t C r e d i t Valid through 2026 Certificates of Completion for non-AIA members are available on request A p p r o v e d P r o v i d e r & A p p r o v e d C o u r s e Please sign the sign sheet to check in and out the presentation S i g n a t u r e o n t h e s i g n s h e e t r e q u e s t e d This presentation will not promote a product or a market specifically T h i s i s 1 0 0 % e d u c a t i o n a l c o n t e n t.

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What is this presentation about ? This AIA Continuing Education course aims to equip architects with the knowledge and skills to design spaces that optimize human well- being and productivity through the strategic use of circadian lighting. An approach based on observation and experience allows to cut through the buzzwords and let the participants explore the science behind circadian rhythms, the benefits of circadian lighting, and practical applications in architectural design. C I R C A D I A N L I G H T I N G C o u r s e d e s c r i p t i o n.

What will you learn? MODULE 1. Understand the fundamentals of circadian rhythms and their impact on human health and well-being, being able to introduce them with confidence to a client. C I R C A D I A N L I G H T I N G C o u r s e o b j e c t i v e s MODULE 2. Provide a profound understanding of how circadian lighting aligns with human biology, to craft spaces that improve occupants' health, mood, and productivity, thereby increasing the desirability and value of their architectural projects. MODULE 3. Equip architects with the technical expertise to understand the LED lighting physics and technologies but also to critically assess circadian lighting solutions. This will enable to discern genuine and effective circadian lighting options from those that are not, enhancing ability to make informed design choices. MODULE 4. Provide with the expertise to seamlessly integrate circadian lighting design principles into projects. This mastery will distinguish architects in the industry, allowing them to offer sought-after spaces that blend aesthetic excellence with human well-being, leading to increased demand for their architectural services, higher client satisfaction, and a stronger competitive position in the market..

M O D U L E 1 I N T R O D U C T I O N T O C I R C A D I A N S C O N C E P T S 4.6 billion years ago • Light • Temperature • Social interactions T I M E G I V E R ( Z E I T G E B E R ).

CLOCK M O D U L E 1 I N T R O D U C T I O N T O C I R C A D I A N S C O N C E P T S • Sleep-Wake cycle • Hormone secretion • Body Temperature • Cognitive performance • Cardiovascular functions B O D Y R E G U L A T I O N.

What is the effect of lighting to our body? M O D U L E 1 I N T R O D U C T I O N T O C I R C A D I A N S C O N C E P T S • Rods • Cones • Intrinsically Photosensitive Retinal Ganglion Cells ( iPRGCs) P H O T O R E C E P T O R S Visual Circadian.

Circadian lighting and its impact on architecture M O D U L E 1 I N T R O D U C T I O N T O C I R C A D I A N S C O N C E P T S M A T E R I A L S A N D C O L O R S L A Y O U T S W I N D O W S.

Exposure to 490nm light to stimulate cortisol in the lowest dip of cortisol levels (10pm) I N C R E A S E I N C O R T I S O L A F T E R 4 9 0 n m E X P O S U R E 33% Exposure to 490nm light M O D U L E 1 C A S E S T U D Y.

Biology of circadian lighting M O D U L E 2 B i o l o g y Activated melanopsin (pigment) initiates biochemical reactions within the ipRGC, leading to a change in the cell's membrane potential by modulating ion channels in response to light. A c t i v a t e d M e l a n o p s i n.

Hormones Melatonin Melatonin regulates the sleep-wake cycle, helps maintain circadian rhythms, influences body temperature, impacts hormonal secretion, supports the immune system, acts as an antioxidant, aids in adjusting to time zone changes and shift work, and may play a role in conditions like seasonal affective disorder (SAD) and age-related changes. M o d u l e 2.

Hormones Cortisol Cortisol is a hormone that regulates a range of vital processes in the body, including the stress response, blood sugar levels, immune system function, inflammation, blood pressure, fat metabolism, cardiovascular function, emotional regulation, and circadian rhythms. It is a crucial hormone for maintaining overall health and responding to stress and challenges. M o d u l e 2.

Effects on Humans Healthy vs Disrupted circadian cycles M o d u l e 2.

Effects on Humans Cognitive functions M o d u l e 2 Alertness and cognitive performance are typically best during the day. Sleep and memory consolidation are linked, and disruptions in the circadian rhythm, shift work, can impair cognitive function. Individual chronotypes and the effects of light exposure on the circadian rhythm also impact cognitive abilities..

Very successful experiment M o r n i n g e x p o s u r e w h i l e t y p i n g 33% Experiment to be done M O D U L E 2 C A S E S T U D Y.

Physics & Technology of circadian lighting M O D U L E 3 P h y s i c s The band gap is the energy difference between the conduction band, which is the range of energies where electrons are free to travel and conduct electricity, and the valence band, which is the range of energies where electrons are usually found. When electrons change from higher-energy states to lower-energy states, photons are released.The features of the released photon, which are responsible for a variety of natural occurrences and technological applications, rely on the energy levels of the emitting atom or molecule. H o w d o e s a n L E D w o r k ?.

Natural sunlight vs Artificial Lighting M O D U L E 3 P h y s i c s N a t u r a l s u n l i g h t A r t i f i c i a l l i g h t i n g.

Light wavelength Correlated color temperature This indicates that the color we see on an object is an interpretation of light wavelength. A leaf seems green because our eyes detect a wavelength of 550 nm, whereas an apple appears red because we perceive light reflected with a wavelength of 700 nm. Correlated color temperature (CCT) is one measure of white light quality. White light is made up of a variety of wavelengths, and CCT indicates the proportions of low frequency reds and oranges and higher frequency blues and violets in any given white light. CCT, which is measured in kelvins (K), provides a precise and quantitative way of representing the hue of white light..

Biological light metrics M O D U L E 3 P h y s i c s It is intended to produce a single value that reflects the potential influence of light on the circadian rhythms of the organism. C S ( c i r c a d i a n s t i m u l u s ) Melanopic lux considers the intensity of light in lux in the 480-490nm specific range. E M L ( e q u i v a l e n t m e l a n o p i c l u x ) While EML only considers frequencies between 480 and 490 nm, MEDI considers the entire spectrum because light outside of this range can also stimulate melanopsin to a different extent. M E D I ( m e l a n o p i c e q u i v a l e n t d a y l i g h t i l l u m i n a n c e ).

Circadian M O D U L E 3 C i r c a d i a n s t i m u l u s.

Very successful experiment M o r n i n g e x p o s u r e w h i l e t y p i n g 33% Experiment to be done M O D U L E 3 C A S E S T U D Y.

What you need to design with circadian fixture M O D U L E 4 C i r c a d i a n l i g h t i n g d e s i g n N e e d e d : N o t n e e d e d : • SPD (spectral power distribution) • M-EDI (melanopic equivalent daylight index) • CS (circadian stimulus) • EV (vertical illuminance) • CCT (correlated color temperature) • EH (horizontal illuminance).

CS is proportional to power and CCT M O D U L E 4 C i r c a d i a n l i g h t i n g d e s i g n.

What’s the right amount of CS M O D U L E 4 C i r c a d i a n l i g h t i n g d e s i g n.

Micro circadian spectrometer M O D U L E 4 C i r c a d i a n l i g h t i n g d e s i g n The speck is a little spectrometer that can measure CS in both indoor and outdoor environments and transmit a signal to indoor circadian lighting to match the outside environments..

Increase in occupants reported productivity P r o d u c t i v i t y 26% Decrease in occupants reported irritability I r r i t a b i l i t y 12% Turn on and off the 490nm C o n t r o l.

Very successful experiment M o r n i n g e x p o s u r e w h i l e t y p i n g 33% Experiment to be done M O D U L E 4 C A S E S T U D Y.

THANK YOU Do you have any questions? Official AIA provider number: 10032454 Luca Masella 40813917 101 N GARDEN AVE, 33755, CLEARWATER,FL (813)-382-4988 —[email protected].