Healthcare Design - March 2017 - 47

4/5

4 KEYS TO INTEGRATING CIRCADIAN

LIGHTING STRATEGIES
1 . U N D E R S TA N D P E O P L E

Consider your building occupants' schedules and how to
consistently reinforce them. Understand where they will spend
their time and provide the proper color and
intensity of light to match their needs. For
circadian entrainment, daylight is the gold
standard and is full spectrum, high intensity,
and highly variable. Circadian supportive
designs should default to daylighting solutions
when able and use electric lighting as a
supplement. Mimicking daylight patterns
and timing should be done in all but the most
northern and southern latitudes, where the
hours of daylight are reduced and extended
light exposure is beneficial. For typical
schedules, warm low-intensity light should
begin and end the day, with the coolest and
brightest intensity occurring midday.
2 .

U N D E R S TA N D

T H E

L I G H T

SOURCES

This includes the spectral power distribution
of the lighting source in addition to aesthetic
color rendering. Spectral power distributions
illustrate the relative intensity of specific
wavelengths across the visual spectrum and
inform a designer if a light source is high
or low in the spectrum most impactful to the
circadian system.
3. PROVIDE DETAILED CONTROL GUIDELINES

TOP: Cool circadian

Specify lighting color and intensity as well as when shifts of color
and intensity should occur throughout the day and night. Specify
very gradual transitions so that the change of color and intensity
is nearly imperceptible to occupants. Some perceived variation
is beneficial, as subtle variation is one of the hallmarks of safe,
natural environments.

lighting mimics the
color of morning light,
which stimulates.
A B OV E : Warm light
such as this triggers our
circadian systems to
wind our bodies down
in preparation for
sleeping.

4. MEASURE AND ADJUST

BENJAMIN BENS CHNEIDER

When commissioning the space, measure the color and intensity
of the light within it. Specified or programmed light output from
fixtures rarely correlates to measured spectral distribution and
illumination levels. Use a photospectrometer to understand the
spectral composition of the light and its intensity to ensure that
design intent has been met.

placzekstudios.com
MARCH 2017

47


http://www.placzekstudios.com http://www.placzekstudios.com

Healthcare Design - March 2017

Table of Contents for the Digital Edition of Healthcare Design - March 2017

Healthcare Design - March 2017
Contents
Editorial
From the Publisher
Photo Tour
Double Duty
First Look
Built to Serve
First Impression
Behavioral Health Natural Remedy
Product Spotlight Universal Design
The Center
Design Profiles
Face Time
Healthcare Design - March 2017 - Healthcare Design - March 2017
Healthcare Design - March 2017 - Cover2
Healthcare Design - March 2017 - 1
Healthcare Design - March 2017 - 2
Healthcare Design - March 2017 - Contents
Healthcare Design - March 2017 - 4
Healthcare Design - March 2017 - 5
Healthcare Design - March 2017 - 6
Healthcare Design - March 2017 - 7
Healthcare Design - March 2017 - 8
Healthcare Design - March 2017 - Editorial
Healthcare Design - March 2017 - 10
Healthcare Design - March 2017 - From the Publisher
Healthcare Design - March 2017 - 12
Healthcare Design - March 2017 - 13
Healthcare Design - March 2017 - Photo Tour
Healthcare Design - March 2017 - 15
Healthcare Design - March 2017 - 16
Healthcare Design - March 2017 - 17
Healthcare Design - March 2017 - 18
Healthcare Design - March 2017 - Double Duty
Healthcare Design - March 2017 - 20
Healthcare Design - March 2017 - 21
Healthcare Design - March 2017 - First Look
Healthcare Design - March 2017 - 23
Healthcare Design - March 2017 - 24
Healthcare Design - March 2017 - 25
Healthcare Design - March 2017 - 26
Healthcare Design - March 2017 - 27
Healthcare Design - March 2017 - Built to Serve
Healthcare Design - March 2017 - 29
Healthcare Design - March 2017 - 30
Healthcare Design - March 2017 - 31
Healthcare Design - March 2017 - 32
Healthcare Design - March 2017 - 33
Healthcare Design - March 2017 - 34
Healthcare Design - March 2017 - 35
Healthcare Design - March 2017 - First Impression
Healthcare Design - March 2017 - 37
Healthcare Design - March 2017 - 38
Healthcare Design - March 2017 - 39
Healthcare Design - March 2017 - 40
Healthcare Design - March 2017 - 41
Healthcare Design - March 2017 - 42
Healthcare Design - March 2017 - Behavioral Health Natural Remedy
Healthcare Design - March 2017 - 44
Healthcare Design - March 2017 - 45
Healthcare Design - March 2017 - 46
Healthcare Design - March 2017 - 47
Healthcare Design - March 2017 - 48
Healthcare Design - March 2017 - Product Spotlight Universal Design
Healthcare Design - March 2017 - 50
Healthcare Design - March 2017 - The Center
Healthcare Design - March 2017 - 52
Healthcare Design - March 2017 - Design Profiles
Healthcare Design - March 2017 - 54
Healthcare Design - March 2017 - 55
Healthcare Design - March 2017 - 56
Healthcare Design - March 2017 - 57
Healthcare Design - March 2017 - 58
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Healthcare Design - March 2017 - Face Time
Healthcare Design - March 2017 - Cover3
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