Opinions

Opinions & Appointments

Resources | Commentary | Oct 19, 2018

UV-Light for Plant Development

Commentary from LpR 68: Since the development of the incandescent lamp, greenhouse farmers have been using electric light sources as a supplement to natural sunlight. Initially, light intensity was the major concern. Later, growers learned to manipulate plant development by altering the power distribution of the light spectrum for added value such as taste and appearance. Read more »

Smart Lighting + IoT | Tech-Talks Bregenz | Resources | Outdoor Applications | Oct 12, 2018

Tech-Talks BREGENZ - Rico Kramer, Inventor, Founder & CEO, esave ag

In recent years there has been a strong focus on safe communication and controls in the lighting industry. The success story of esave ag, however, started much earlier, when Rico Kramer, the founder and CEO of esave, travelled to Taiwan due to his dissatisfaction with the quality of early LED replacement bulbs. What the former Apple employee learned there led to the development of the esave concept and its technology. In the interview he talks about his intentions, the beginning of esave, wireless technologies in general, system security, commissioning, system incompatibilities, markets and their peculiarities. Read more »

Resources | Tech-Talks Bregenz | Security | IoT | Jul 20, 2018

Tech-Talks BREGENZ - Ken Munro, Partner & Founder, Pen Test Partners

Today, hardly a day goes by that we don’t hear about security breaches, hacker attacks or comprimized data; often as a result of insufficient security measures. IoT does not really improve this situation and it is therefore necessary for the industry to take this threat seriously. This is especially true for the lighting industry, whose aim is to become the IoT enabler. Ken Munro, founder and partner at Pen Test Partners, is an ethical hacker whose passion is to hack any technical product he can get his hands on. Unfortunately, he succeeds way to often. LED professional talked with him about ethical hacking, where he sees the risks in various products, where the risks are hidden and what can be done to minimize them. Read more »

Blue Light Hazard - How Dangerous Is SSL Lighting?

Modern Solid State Lighting (SSL) technology has long since found its way into our normal working and living environments. In the early phases, consumers were most concerned with lifetime, pricing and light quality of the new LED-based light sources. Now they have become almost ubiquitous, a focus has been placed on safety. At the recent Light+Building exhibition topics such as photobiological safety and blue light hazard (BLH) were highly ranked among both visitors and exhibitors. Read more »

Interview | Connected Lighting | May 12, 2018

International and Cross-Industry Projects such as OpenAIS are Absolutely Crucial to the Success of Connected Lighting

Interview with Jens Herter, Coordinator Alliances & Funding at Tridonic. Read more »

Tech-Talks Bregenz | Lp Article | Human Centric Lighting | Apr 22, 2018

Tech-Talks BREGENZ - Fred Maxik, Founder & CTO, Lighting Science Group

LED light in combination with advanced controls, and here especially IoT capabilities, opened several new options in lighting. In this context, the term Human Centric Lighting, and more recently, the term Biologically Active Light have become trendy. Fred Maxik, founder and CTO of the Lighting Science Group, who held the keynote speech at LpS 2017, recognized these opportunities in a very early stage when most other manufacturers were still struggling with the challenges of the new technology. In the interview he explains what his perception of light is and its importance in our lives. He gives insights into his philosophy and ideas on which criteria artificial lighting has to fulfill in order to live up to the promising terms „Human Centric Lighting“ and „Biologically Active Light“. Read more »

Smart Lighting | Commentary | Apr 15, 2018

On Smart Luminaires

In the time up to 2010, conventional luminaires with low or high-pressure discharge lamps with a luminous efficacy of about 80 lm/W were developed. The electrical power was dependent on the electrical power of the lamps built in the luminaire. From 2008 and likely until around 2020, luminaires with phosphorconverted white LEDs with one fixed color temperature, a constant luminous intensity distribution and a maximal luminous efficacy of about 140-160 lm/W are developed with an electrical power between 10 W and 300 W for different applications and dependent on the manufacturer. Therefore, a relative increase in luminous efficacy of 80 -100% in the context of the discussions on “energy efficiency” is being achieved. Read more »

Resources | LpO Article | Statements | Technologies | Mar 05, 2018

Prof. Shuji Nakamura - The Future is Laser Lighting

PROF. NAKAMURA SAID: "For violet LEDs we reach about 50-100 Acm-2 but the laser diode uses 3-10 kAcm-2 which is about 1,000 times higher than blue LEDs. This leads to very tiny chips in combination with the same phosphors such as YAG types. The light output is about 1,000 times higher than conventional LEDs with the same chip-size". Read more »

Resources | LpO Article | Statements | Applications | Mar 05, 2018

Dr. Jy Bhardwaj - The Future of Lighting Applications

DR. JY BHARDWAJ SAID: "LEDs get integrated into the infrastructure, or let’s say, embedded. Instead of points of light there will be ceilings of light or walls of light. LEDs will be integrated into work surfaces, tables and all kinds of different things". Read more »

Resources | LpO Article | Statements | Horticulture | Mar 05, 2018

Paul Scheidt, Cree - Horticulture Lighting

"When you go into horticulture application the light output level directly correlates to the yield that you see in the plants. There is no buffer, when lights dim, the yield goes down. If something degrades very quickly and is 100% for one growth cycle then goes down to 90% for the second growth cycle, you will see a reduced yield. There is no room for adjustments." Paul Scheidt Read more »

Resources | Tech-Talks Bregenz | Research | Light Generation | Jan 15, 2018

Tech-Talks BREGENZ - Julia Frohleiks, Researcher, University of Duisburg-Essen

In his commentary on technical progress and innovation, Dr. Sejkora said: “In the early stage, in the first phase of its life cycle, technology is mainly driven by fundamental research.” He went on to say that we can never predict how a technology will develop. Researchers from the University of Duisburg-Essen, working in the Nano Energy Technical Center (NETZ), worked on this type of fundamental technology and their submission received the LpS 2017 Scientific Award. Ms. Julia Frohleiks, a Ph.D. student, was a major contributor to this research in the group led by Dr. Ekaterina Nannen and accepted the award in Dr. Nannen’s name. In the following interview she gives some background information and discloses future research possibilities. Read more »

Resources | LpR Article | Commentary | Trends | Jan 15, 2018

Can You Show Me the Next S-Curve, Please?

The evolution of technologies is often described using the “S-curve” model. In the early stage, in the first phase of its life cycle, technology is mainly driven by fundamental research. Only a few players are active at that time and innovation steps are quite large. In the second phase, early adopters start to develop products and bring them to market. This phase is characterized by huge investments. In the third phase, more and more players enter the technology field, competition becomes important and development speed of the technology decreases. In the last phase, the technology is mature, (nearly) everybody can use it, there are fewer margins and the technology should be replaced by a new one. Many of the SSL technologies have meanwhile reached maturity. Where are the upcoming technologies, what will be the next S-curve? Looking at technology discussions and lectures at LpS 2017 I tried to find answers to these questions. Read more »

Resources | LpR Article | Tech-Talks Bregenz | Quantum Dots | Oct 31, 2017

Tech-Talks BREGENZ - Ken T. Shimizu, Research & Development Director, Lumileds

QDs have been a hot topic in lighting for a while already, but up until now they haven’t been adopted on a large scale in lighting. The adoption began in display devices because some of the technical issues were of less concern in this application. With continuing development, QDs are now also becoming interesting for general lighting applications. Ken Shimizu, Director of Novel Technologies and Devices, Research and Development at Lumileds, attended the LpS in Bregenz and made a presentation about the company’s QD technology. In this interview he gives some background information about the QD program and future steps. Read more »

Resources | LpR Article | Commentary | Test Equipment | Oct 31, 2017

The Value of High-End Labs for High Quality Lighting

With the relocation to the Augsburg site in 2015, the Osram laboratory equipment includes a number of integrating spheres of different sizes up to 3 meters in diameter, several goniophotometers A/B/C types, a rotary mirror light distribution meter and a hemispherical goniometer with a measurement radius of 2.65 meters, optical bench measuring systems with up to 35 meter measuring distance, corresponding high-quality photometric receivers and spectral radiometers as well as the necessary components for the electrical operation of lamps - according to customer or standardized specifications. Read more »

Trends in Horticulture Lighting

Cree has been a leader in general lighting applications for over 20 years and has customers ranging from restaurant chains to global government agencies. Paul Scheidt began his career in Cree in 2005, working on the development of their lighting applications. During this time, he has seen an increase in the horticulture lighting application. LED professional spoke to Paul Scheidt about horticulture lighting and what he thinks is behind this recent trend. He also shares his views of what he thinks the future holds for both Cree and horticulture lighting applications. Read more »

Tech-Talks BREGENZ - Dr. Wilfried Pohl, Research Director, Bartenbach GmbH

Bartenbach is one of the pioneers in light planning and lighting research. Since Christian Bartenbach Senior founded the engineering office in 1976, the company has been dedicated to light and visual perception. Several lighting inventions made over the years, can be attributed to Bartenbach. Dr. Wilfried Pohl, as a member of the Managing Board and Director of Research at Bartenbach GmbH, has played a substantial role in many developments. LED professional talked with him about Bartenbach’s history, education in the lighting business, the lighting parameters he deems very important, the quality of light, "Human Centric Lighting" and "Biodynamic Lighting“, and how LEDs have changed the light planning and lighting research company, in general. Read more »

Brave New World and the Dualism of Light(ing)

The lighting business has been quite predictable over a long period of time. Technical changes were introduced slowly, dominated by a handful of leading companies, and mostly due to new, but not disruptive light sources. The life of engineers was mainly determined by a manageable number of parameters: Lighting requirements, light source parameters, costs, product dimensions, and the odd, required feature. Read more »

Statements | Jul 25, 2017

Paul Scheidt, Cree - Horticulture Lighting

Tech-Talks BREGENZ - Jamie Singerman, Future Lighting Solutions

We recently sat down with Jamie Singerman, Worldwide Corporate Vice President, and Patrick Durand, Technical Director for Future Lighting Solutions, a leading provider of Solid-State Lighting technologies, engineering expertise and online simulation and design tools, to discuss the company’s differentiators and their views on the ever changing lighting market. Read more »

Lighting Delivering Increased Value To Society - A Strategy For Growth

In recent years we have seen energy efficiency as the key driver for regulation as well as growth. Thanks to the arrival of LEDs the industry is already providing energy savings greater than any other sector. As the LED revolution rapidly continues, where next for the EU lighting industry? LightingEurope, the European industry association for the lighting industry has developed a strategy for growth which aims to fundamentally deliver value to society while aligning with the need to move towards a circular economy. Read more »

Andreas Weisl on the Future of Seoul Semiconductor

Andreas Weisl is Managing Director and Vice President Sales SEOUL SEMICONDUCTOR Europe GmbH. Read more »

Tech-Talks BREGENZ - Philipp Henrici, President and Managing Director at BJB

It’s unusual for a lighting company to be older than electric lighting itself, but BJB in Arnsberg, Germany is celebrating their 150th anniversary this year. LED professional’s Siegfried Luger and Dr. Günther Sejkora spoke with Philipp Henrici, the President and Managing Director at BJB about disruptive technology changes, starting from petroleum lamps to electric lighting as well as conventional lighting versus solid state lighting. They also touched on the subjects of chances and drawbacks of LED component standardization, modular systems and automated production processes. Read more »

A Lighting Designers Relativity of Light Performance

The LED will always be the superstar of light sources. Their precise and clear lighting possibilities have been targeted by lighting planners and architects for the past ten years. The coming years will see the performance of the LED getting progressively closer to the spectrum of daylight and that will, in turn, generate biologically effective LEDs that are even higher in contrast and promise a new kind of feel-good light. Read more »

Statements | Apr 13, 2017

Dr. Jy Bhardwaj

Statements | Apr 12, 2017

Professor Shuji Nakamura

Tech-Talks BREGENZ - Norman Bardsley, President of Bardsley Consulting

Professor of Physics, Dr. J. Norman Bardsley, has become an internationally recognized expert in SSL through his activities as an advisor for DoE and ISA. Dr. Bardsley has a profoundly deep knowledge and understanding of OLED technology, which includes the manufacturing thereof, cost structures and research activities. LED professional talked with him about the different aspects of OLED lighting technology and asked for his thoughts on future perspectives. Read more »

From Component to System, Andreas Weisl, CEO at Seoul Semiconductor Europe GmbH

The history of Light-Emitting Diodes (LED) is quite short compared with some other electronic device industries. However, it has changed and revolutionized the entire world of light within a very short period of time. The history of Light-Emitting Diodes (LED) is quite short compared with some other electronic device industries. However, it has changed and revolutionized the entire world of light within a very short period of time. Read more »

Resources | LpR Article | Tech-Talks Bregenz | Light Conversion | Jan 26, 2017

Tech-Talks BREGENZ - Dr. Rubén D. Costa, Group Leader, University of Erlangen-Nuremberg

Light quality and costs of LED systems remain an important topic even though big improvements have been made. New approaches are always welcome and stir up hope. It was exactly a year ago that LED professional published the article by Dr. Rubén D. Costa, Liebig Group Leader at the University of Erlangen-Nuremberg, about his amazing new „Bio-Hybrid“ white LED approach. At LpS 2016 his presentation on the latest research results and improvements also won him the LpS 2016 Scientific Award. Consequently, we just had to invite him to a Tech-Talk Bregenz! In the interview below he gives us some interesting background information about why he started the project, how it works and what he expects in the future. He also gives us his views on LEDs and lighting in general. Read more »

Commentary | Smart Lighting + IoT | Resources | LpR Article | Jan 26, 2017

Lighting Up Smart Cities, Dr. Wu Chou, Huawei

Although streetlights have been associated with cities for more than a thousand years, they are rarely considered for functions other than luminary purposes. One of the distinct features of streetlights is their geographic location. In particular, streetlights follow the roads and streets that are the arteries of the city, and at night they outline the city so it can be seen from many miles away. Read more »

Tech-Talks Bregenz | Nov 24, 2016

Tech-Talks BREGENZ - Prof. Christian Cajochen, Univ. Basel, Head of Center of Chronobiology

Human Centric Lighting has become a catchphrase used by industry and the press. But the press has also started reporting that research emphasizes the danger of LED lighting in connection to our health and has coined the term “Blue Light Hazard”. These claims have caused confusion amongst end users and throughout the lighting community. Prof. Christian Cajochen, Head of the Centre for Chronobiology at the University of Basel - an expert on this topic - held a lecture at the LpS 2016 entitled “Light Beyond Vision”. Afterwards, LED professional seized the opportunity to talk to him personally and get some in-depth information about the risks and benefits of LED lighting. Read more »