SEOUL-SEMICONDUCTOR
16.5.2019 15:02:10 CEST | Business Wire | Press release
Seoul Semiconductor Co., Ltd. (KOSDAQ:046890), a leading global innovator of LED products and technology, announced that its SunLike Series natural spectrum LEDs have been identified as a key light source for promoting human well-being, based on the results of a recent comprehensive sleep study conducted by scientists at the University of Basel.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190516005262/en/
Seoul Semiconductor developed SunLike Series natural spectrum LEDs in collaboration with Toshiba Materials’ TRI-R spectrum technology in 2017 as the first LED light source to closely match the spectrum of natural sunlight. The two companies have since promoted this natural sunlight spectrum technology through its favorable effects on human well-being and sleep as a key value in the evolution of lighting.
There has been an increase in research activity on the relationship between light and human bio-function, including a recent scientific study focusing on the effects of light spectrum on sleep quality, visual comfort, well-being and daytime alertness conducted by Prof. Christian Cajochen and his team at the University of Basel in Switzerland, entitled: “Effect of Daylight LED on Visual Comfort, Melatonin, Mood, Waking Performance, and Sleep,” published in the Journal of Lighting and Research Technology published on March 24, 2019.
It is well established that light is one of the strongest control factors for human circadian rhythms, such as the secretion of the sleep promoting hormone melatonin. Thus, optimal lighting condition during daytime are crucial to prevent circadian rhythm disturbances which can lead to sleep disorders and other life-style related diseases. Over the past ten years, there have been related scientific studies in the fields of sleep, chronobiology, physiology, as well as the impact of light quality in elderly care.
According to Prof. Cajochen’s research, LED light sources with the same measured correlated color temperature (CCT) and intensity, but different spectral output, can have different effects on human behavior and physiology. LED light sources with a spectrum close to natural sunlight produced better visual comfort, more alertness, and happier moods in the morning and evening among the test participants, compared to those exposed to conventional spectrum LEDs. The research tested subjects’ visual comfort, circadian physiology, daytime alertness, mood, cognitive performance, and sleep after being exposed to both conventional LED light, and natural spectrum LED light for 49 hours in a laboratory setting.
Quoting from the paper: “We have evidence that a daylight [natural spectrum] LED solution has beneficial effects on visual comfort, daytime alertness, mood, and sleep intensity in healthy volunteers. Delta EEG activity (0.75–4.5Hz) was significantly higher after daylight-LED than conventional-LED exposure during the post-light exposure night.” [NOTE: Delta EEG (electroencephalogram) measurements record delta waves, the brain waves associated with Stage 3 non-rapid eye movement (NREM) sleep, or “slow-wave sleep” (SWS), and aid in characterizing the depth of sleep.]
By providing the same spectrum as sunlight and in the visible light range, SunLike Series natural spectrum LEDs deliver benefits to human well-being, consistent with the mechanisms of vision that impact both image forming and non-image forming aspects of the eye, as well as the control of circadian rhythms. While the qualities of artificial light have been described primarily with color and intensity thus far, SunLike Series natural spectrum LEDs have introduced light spectrum as another important factor in determining overall light quality.
“This research conducted by the University of Basel suggests another important aspect to the evolving direction of artificial light over the past eighty years. In addition to the properties of energy efficiency and long life, we have added the factor of ‘human well-being’ to modern LED light sources,” said Nam Ki-bum, sales executive vice-president of Seoul Semiconductor. “As the world’s first mass-produced LED devices to achieve natural sunlight quality, SunLike Series LEDs are advancing lighting technology in this important area as we continue to respond to market needs from our customers’ lighting applications.”
View source version on businesswire.com: https://www.businesswire.com/news/home/20190516005262/en/
Contact:
Seoul Semiconductor Inc. North America Andrew Smith Tel: +1 (901) 831-6614 Email: andrew.smith@seoulsemicon.com
Asia and Europe Jeong-hee Kim Tel: +82-70-4391-8311 Email: jeonghee.kim@seoulsemicon.com
Link:
Social Media:
About Business Wire
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
SES Advances Next-generation MEO Strategy Following Successful Completion of IRIS² Rendez-vous 17.8.2026 10:52:00 CEST | Press release
IRIS² expands SES's differentiated MEO architecture while supporting Europe's secure, sovereign multi-orbit connectivity ambitions SES today announced the successful completion of Rendez-vous 1 (RDV1) under the Infrastructure for Resilience, Interconnectivity and Security by Satellite (IRIS²) programme, marking a key milestone in the programme's implementation phase and reinforcing Europe's path towards sovereign, resilient and secure satellite connectivity. The successful completion of RDV1 confirms the programme's readiness to move forward with implementation and provides greater visibility on the long-term scope, performance and economics of the MEO segment. SES's expected capital commitment for the MEO segment is up to €1.35 billion, reflecting current programme scope, while maintaining the deployment of 18 MEO satellites and the targeted service entry in 2030. SES’s share of the investment in the IRIS² programme for 2026 is included in SES’s FY26 Capex outlook as previously commun
Allianz Delivers Record Result and Is Well on Track to Achieve Its Targets7.8.2026 07:10:00 CEST | Press release
2Q 2026 This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260806509750/en/ Oliver Bäte, Chief Executive Officer of Allianz SETotal business volume at 45.6 billion euros, an internal growth of 5.7 percent1, with contributions from all segments. Asset Management delivers excellent growth. Operating profit rises 10.6 percent to a record level of 4.9 billion euros. Shareholders’ core net income at 2.6 billion euros; 12.7 percent below last year. Adjusted for a divestment gain last year and offsetting measures following the sale of the stake in our Indian JVs, underlying growth is strong at 10 percent. 6M 2026Total business volume at 98.6 billion euros, an internal growth of 4.3 percent1, driven by Property-Casualty and especially Asset Management. Operating profit rises 8.6 percent and reaches a record level of 9.4 billion euros. Shareholders’ core net income advances 15.5 percent to 6.4 billion euros. Adjusted for divestment effec
Pure Lithium Receives Australian Patent for "Lithium Metal Anode and Battery"6.8.2026 22:49:00 CEST | Press release
Pure Lithium Corporation, a vertically integrated next-generation lithium metal battery technology company, today announced that the Australian patent office has granted the company a patent (AU2025271196) titled “Lithium metal anode and battery.” Australia mines roughly half of the world’s lithium, yet has no domestic battery production at all; every battery the country uses is imported. The granted patent is directed to ways in which Pure Lithium’s technology can change that. Rather than trying to catch up in lithium-ion, Australia can leapfrog the incumbent technology and establish a next-generation industry. As worldwide demand for batteries grows, every country capable of making batteries needs to be making them. That is Pure Lithium’s central goal: opening up markets around the world through battery technology that enables local, independent supply chains, keeping pace with demand and strengthening economies. China controls the lithium-ion battery supply chain and manufactures th
Vercel Appoints Amit Agarwal, Standard Template Labs CEO and former Datadog President, to Board of Directors6.8.2026 17:00:00 CEST | Press release
The product leader who helped scale Datadog from early-stage startup through IPO brings deep product expertise to Vercel's board Vercel, the agentic infrastructure company, today announced the appointment of Amit Agarwal, former president of Datadog and founder and CEO of Standard Template Labs, an AI-first service management platform, to its board of directors. Agarwal brings 25 years of enterprise software experience and a track record of scaling a product-led company from its earliest days into one of the defining public software companies of the cloud era. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260806738617/en/ Amit Agarwal Agarwal joined Datadog in 2012 as its Chief Product Officer and was named President in 2022, overseeing product, corporate development, and go-to-market functions as the company grew past $2.5 billion in annual revenue. Across 13 years, including Datadog's 2019 IPO and its first years as a pub
Laserfiche Launches Advanced Enterprise Security to Deliver Multi-Region Disaster Recovery and GovRAMP-Ready Compliance for Highly Regulated Industries6.8.2026 16:00:00 CEST | Press release
New security suite extends Laserfiche’s proven security controls and adds near real-time data replication for governments, law enforcement and security-conscious enterprises. Laserfiche — the leading SaaS provider of intelligent content management — today announced the launch of Enterprise Security, an advanced suite of security enhancements designed for organizations navigating complex regulatory environments. Enterprise Security addresses GovRAMP and CJIS (Criminal Justice Information Services) security requirements based on the NIST SP 800-53 framework. For organizations handling privileged citizen, legal or corporate data, these built-in controls streamline audit preparation and fortify defenses. With organizations placing a higher priority on data stewardship and corporate governance, enterprise IT leaders require a security architecture that protects data without slowing down operations. Laserfiche Enterprise Security extends Laserfiche Cloud’s highly resilient infrastructure wit
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom