Espoo, Finland – 17 July 2019: Casambi, the pioneer in wireless lighting
controls based on Bluetooth Low Energy (BLE), has teamed up with LED
technology specialist Seoul Semiconductor to provide lighting designers
with precision control of LED lights that match the spectrum of
sunlight. The development puts true human-centric lighting in the hands
of designers for the first time.
Casambi’s wireless control technology can now be used with Seoul
Semiconductor’s innovative SunLike Series LEDs – the first LED light
source to closely match the spectrum of sunlight.
‘Human-centric lighting’ describes lighting that is designed to work
with the human body’s natural rhythms. It relies on the
well-established fact that the human eye detects the presence of a
particular wavelength of blue light in the spectrum that makes up
sunlight, and uses this to judge what time of day it is. In this way,
light helps regulate our sleep–wake cycles and other bodily rhythms, and
has a significant impact on our mood and wellbeing.
Human-centric lighting harnesses this effect by adjusting its
brightness and colour temperature during the day to mimic natural light.
But not all so-called human-centric solutions are the same. Even if
they look the same to the eye, different white light sources contain
different amounts of the crucial blue wavelength that triggers the
body’s response. Most solutions described as human-centric do not have a
spectrum that resembles that of real sunlight, so they end up providing
too much or too little blue.
Seoul Semiconductor’s SunLike Series LEDs are different. They are
the first LEDs to be closely matched to real sunlight, so they provide a
similar biological stimulus.
This was confirmed in a recent study by Dr Octavio L. Perez, adjunct
researcher in integrative lighting at Mount Sinai Hospital in New York.
The study, due to be published soon, looked at the non-visual effects
of light on the body, and found that the SunLike Series LEDs provide up
to 21% more stimulus than conventional LEDs at a colour temperature of
4000K, and the same stimulus as daylight at 6500K.
Another study by scientists at the University of Basel in
Switzerland found that LED lights with a spectrum close to sunlight
could have a very different effect on human circadian rhythms to
conventional LEDs, with beneficial effects on health and wellbeing.
Professor Christian Cajochen and his team found that people who spent
time under LED lights with a spectrum close to sunlight were more
comfortable, more alert, had better moods and slept better, compared to
those who spent time under conventional LED lights.
Together, Casambi and Seoul Semiconductor now provide lighting
designers the lighting community with all the tools needed to puts this
science into practice and create truly human-centric solutions.
Designers Users can use Casambi’s Bluetooth-based wireless control
system and app with products containing SunLike Series LEDs to precisely
adjust the level of light, in the knowledge that the spectrum reflects
real sunlight.
Casambi allows lights to be controlled by a timer, or by a huge
variety of presence/motion sensors and ambient daylight detection
sensors. It can control luminaires that shift in colour temperature over
a very wide range, and designers have the freedom to configure dimming,
and create scenes or animations to suit the particular application.
Timo Pakkala, co-founder of Casambi, commented: ‘Casambi’s
partnership with Seoul Semiconductor puts power into the hands of the
lighting designer, who can use their expertise to decide how to
customise the lighting to the needs of the particular application and
the users of the space, and plan an effective human-centric solution
based on the latest science.’
• Seoul Semiconductor will be demonstrating what Casambi can do
with its Sunlike Series products at darc room held in London from 18 to
22 September 2019.
Notes for editors
• The University of Basel study: Cajochen, C., Freyburger, M.,
Basishvili, T., Garbazza, C., Rudzik, F., Renz, C., … Weibel, J. (2019).
Effect of daylight LED on visual comfort, melatonin, mood, waking
performance and sleep. Lighting Research & Technology. https://doi.org/10.1177/1477153519828419
• More detail on the Mount Sinai study: https://www.businesswire.com/news/home/20190527005028/en/
• Seoul Semiconductor’s SunLike Series LEDs were co-developed
through the combination of Seoul Semiconductor’s optical semiconductor
technology and Toshiba Materials’ TRI-R technology.
About Casambi
Founded in 2011, Casambi’s wireless lighting control software
platform empowers users of smart devices to interact effortlessly with
modern lighting around them. Based on Bluetooth Low Energy, the
award-winning Casambi solution delivers a dynamic user experience,
exceptional reliability and unrivalled performance. From basic,
individual lighting-fixture controls to industrial-scale solutions with
cloud-based remote control, monitoring and data logging, Casambi’s
technology can be easily integrated at low cost into lighting fixtures,
drivers and modules. Additionally, installations can gain advanced
lighting control functionality with minimal hardware and deployment
outlay. Casambi develops its products in Finland and has a growing sales
and support service across Europe, North America and Asia. For more
information, visit www.casambi.com.
Press contacts:
On behalf of Casambi
Nayl D’Souza, Account Director, Publitek
Tel: +44 20 3813 6423
Email: nayl.dsouza@publitek.com
