Photonics and LED Lighting News

DOE LED driver tests validate improving reliability and testing methodology

The US DOE has tested LED drivers in a stressed environment for as long as 7500 hours; and while there have been failures, the accelerated stress testing is said by the researchers to demonstrate improving driver reliability in the SSL sector.

Posted on 20 August 2019 | 3:53 pm

4 Killer Anti-Aging Tricks All 50+ Women Must Follow

Don’t we all want to look young and beautiful forever?  Although that’s not how our body works but we can always find some little tricks and tips to look and feel young. Here are some killer anti-aging tricks all 50+ women should follow. Sunscreen & Moisturizer Confused about all the anti-aging creams available in the […]

Posted on 20 August 2019 | 1:47 pm

Watching electrons using extreme ultraviolet light

A new technique developed by a team at MIT can map the complete electronic band structure of materials at high resolution. This capability is usually exclusive to large synchrotron facilities, but now it is available as a tabletop laser-based setup at MIT. This technique, which uses extreme ultraviolet (XUV) laser pulses to measure the dynamics of electrons via angle-resolved photoemission spectroscopy (ARPES), is called time-resolved XUV ARPES.

Posted on 20 August 2019 | 12:01 pm

What to buy as your new gaming console?

Gaming consoles plays an imperative role in enhancing your overall gaming experience. A console teleports you in the gaming world and makes you feel like you are having the full control on the game. No matter what the game is about, the console plays the most significant role. Many brands are offering different gaming consoles. […]

Posted on 20 August 2019 | 10:40 am

New artificial compound eye could improve 3-D object tracking

If you've ever tried to swat a fly, you know that insects react to movement extremely quickly. A newly created biologically inspired compound eye is helping scientists understand how insects use their compound eyes to sense an object and its trajectory with such speed. The compound eye could also be used with a camera to create 3-D location systems for robots, self-driving cars and unmanned aerial vehicles.

Posted on 19 August 2019 | 4:43 pm

Wired for sound: A third wave emerges in integrated circuits

Optical fibres are our global nervous system, transporting terabytes of data across the planet in the blink of an eye.

Posted on 19 August 2019 | 3:00 pm

Researchers document a quantum spin wave for light

Researchers at Purdue University have created a quantum spin wave for light. This can be a carrier of information for future nanotechnologies but with a unique twist: they only flow in one direction.

Posted on 19 August 2019 | 1:48 pm

Making Your Return On Investment Triple Through Email Marketing

For some people, email marketing has been outdated. With the continuous advancement of technology where new gadgets, devices and modern tools are being developed, a lot of people believe that email marketing has already lost its power in the real of marketing strategies and campaigns. But that is one big misconception. The truth is, email […]

Posted on 19 August 2019 | 1:01 pm

A laser for penetrating waves

The Landau-level laser is an exciting concept for an unusual radiation source. It could efficiently generate so-called terahertz waves, which can be used to penetrate materials, with possible applications in data transmission. So far, however, nearly all attempts to make such a laser have failed. An international team of researchers has now taken an important step in the right direction: In the journal Nature Photonics, they describe a material that generates terahertz waves by simply applying an electric current. Physicists from the German research center Helmholtz-Zentrum Dresden-Rossendorf (HZDR) played a significant role in this project.

Posted on 19 August 2019 | 12:24 pm

Why Is Setting Up A Proper Volleyball Drill Important?

Every sport requires a hundred percent commitment and fitness. That is why it is very important to set up practice sessions or drills properly. It is what builds up the right amount of endurance in the players and also boosts their stamina. In a sport like a volleyball, it is very crucial to develop reflexes. […]

Posted on 18 August 2019 | 6:29 am

How To Care For Silver Jewelry

Jewelries are considered valuable assets. Not only because they have expensive values but they also have personal impact to us. As such, taking good care of them should be prioritized to preserve its value and meaning to us. In case of silver jewelry, there are some specific ways and tips to take good care of […]

Posted on 17 August 2019 | 10:34 am

PoE question nets a range of responses

Feedback on our previous PoE blog has shown a range from compliments to concerns with regard to the technology.

Posted on 16 August 2019 | 3:55 pm

Expanded ion beams light new way for next-generation electronic devices, energy storage, smart homes

A new type of lens is lighting the way for expanded uses of large ions and building blocks for new materials. The lens may also address one of the fundamental bottlenecks for generating bright ion beams.

Posted on 16 August 2019 | 11:07 am

uSEE breakthrough unlocks the nanoscale world on standard biology lab equipment

The ability to observe how life works at a nanoscale level is a grand challenge of our time.

Posted on 16 August 2019 | 9:00 am

Tips To Learn How To Play Tennis As A Beginner

There are a number of games that people love to play, and one such game is tennis. This is one of the most loved sports for a number of people around the world. Playing tennis helps to build power, strength and stamina and also helps to maintain fit. All age group people can play tennis […]

Posted on 16 August 2019 | 8:50 am

Tiny lensless endoscope captures 3-D images of objects smaller than a cell

Researchers have developed a new self-calibrating endoscope that produces 3-D images of objects smaller than a single cell. Without a lens or any optical, electrical or mechanical components, the tip of the endoscope measures just 200 microns across, about the width of a few human hairs twisted together.

Posted on 15 August 2019 | 8:40 pm

San Diego smart LED street lights help police, garner ACLU interest

Cameras on the street-light poles generally provide the city with anonymized data, but police have used the raw footage to both convict and clear citizens of crimes.

Posted on 15 August 2019 | 8:10 pm

Study reports high-harmonic generation in an epsilon-near-zero material

High-harmonic generation (HHG) is a nonlinear optical phenomenon through which high harmonics of an intense laser beam are generated in a target material, typically a gas. Physicists have been studying HHG in atomic gases for decades, but more recently a team of researchers at SLAC National Accelerator Laboratory has started investigating this process in solids.

Posted on 15 August 2019 | 1:40 pm

Researchers propose new topological phase of atomic matter hosting 'photonic skyrmions'

The field of topology or the study of how surfaces behave in different dimensions has profoundly influenced the current understanding of matter. The prime example is the topological insulator, which conducts electricity only on the surface while being completely insulating inside the bulk. Topological insulators behave like a metal, i.e., silver on the surface, but inside, it would behave like glass. These properties are defined using the conductivity or flow of electrons depicting whether there is a highway or a road-block for their motion. One major driver of future applications for topological insulators is in the field of spin-electronic devices since these electrons spin in unison, all aligned with each other while flowing on the surface.

Posted on 14 August 2019 | 5:42 pm

Follow These Tips On Keeping Your Computer Cool And Witness Its Smooth Functioning

Computers have successfully become an integral part of our lives. They singlehandedly assist us in completing the majority of our work. The activities of studying, working, playing games, researching, even relaxing employs computers. Thus they fulfil several functions which explains why it is overused in most cases. Overusing of computers often leads to several problems, […]

Posted on 14 August 2019 | 10:43 am

Pro Tips to “Reset” Thyroid Gland to Lose Weight Fast

Your thyroid glands are responsible for the regulation of your metabolism. When they fail to produce enough thyroid hormones your metabolism rate gets slower and you end up with the undesired “few extra pounds”. When you have Hypothyroidism, losing weight may be tough, especially for women, but it is not impossible. Here are some pro […]

Posted on 14 August 2019 | 4:41 am

Men Costume: Fancy Clothing And Costumes For Men

The costume is a distinctive style of an outfit of an individual or group of people. That reflects their characteristics, culture, activity, or gender. In the modern-day costumes are now referred to as the theme of the occasion. Just like Halloween, Christmas, or birthday and many more. Where you can sometimes see costumes like anime, […]

Posted on 13 August 2019 | 2:15 pm

All-optical diffractive neural network closes performance gap with electronic neural networks

A new paper in Advanced Photonics demonstrates distinct improvements to the inference and generalization performance of diffractive optical neural networks.

Posted on 13 August 2019 | 1:06 pm

A million pulses per second: How particle accelerators are powering X-ray lasers

About 10 years ago, the world's most powerful X-ray laser—the Linac Coherent Light Source—made its debut at SLAC National Accelerator Laboratory. Now the next revolutionary X-ray laser in a class of its own, LCLS-II, is under construction at SLAC, with support from four other DOE national laboratories.

Posted on 13 August 2019 | 12:29 pm

Atomic 'Trojan horse' could inspire new generation of X-ray lasers and particle colliders

How do researchers explore nature on its most fundamental level? They build "supermicroscopes" that can resolve atomic and subatomic details. This won't work with visible light, but they can probe the tiniest dimensions of matter with beams of electrons, either by using them directly in particle colliders or by converting their energy into bright X-rays in X-ray lasers. At the heart of such scientific discovery machines are particle accelerators that first generate electrons at a source and then boost their energy in a series of accelerator cavities.

Posted on 13 August 2019 | 11:15 am

Austrian sensor company swoops in with offer to buy Osram - and dump IoT lighting

In breaking news, suddenly ams is interested again, upping the bid made by Bain and Carlyle last month.

Posted on 12 August 2019 | 5:24 pm

Thinnest optical waveguide channels light within just three layers of atoms

Engineers at the University of California San Diego have developed the thinnest optical device in the world—a waveguide that is three layers of atoms thin.

Posted on 12 August 2019 | 3:00 pm

Researchers turn off backscattering, aim to improve optical data transmission

Engineers at the University of Illinois have found a way to redirect misfit light waves to reduce energy loss during optical data transmission. In a study, researchers exploited an interaction between light and sound waves to suppress the scattering of light from material defects—which could lead to improved fiber optic communication. Their findings are published in the journal Optica.

Posted on 12 August 2019 | 2:37 pm

Takeover bid for Osram hits stiff resistance

The company’s largest shareholder pillories the offer by Bain and Carlyle for its “knock-down” price, and a second key group is also not impressed.

Posted on 12 August 2019 | 2:28 pm

Laser and sensor research to be advanced by new inquiries into plasmonic-photonic crystals

A group of researchers led by Professor Myakzyum Salakhov has been working on the problem of optical states in plasmonic-photonic crystals (PPCs).

Posted on 12 August 2019 | 2:00 pm

Light quality advancements headline LFI, with plenty of IoT on the side (MAGAZINE)

From packaged LEDs to light engines to luminaires, better light quality was the clear trend at LightFair International, reports MAURY WRIGHT, and the march toward connected lighting and numerous specialty applications remains a strong backup story.

Posted on 12 August 2019 | 1:22 pm

Focus connected lighting efforts on ease of use (MAGAZINE)

Rather than shoot the moon on complex controls, Wavelength Lighting’s MICHAEL HENNESSY prescribes a simpler, modular approach to connected lighting.

Posted on 12 August 2019 | 1:17 pm

Educational approaches bolster human-centric lighting efforts (MAGAZINE)

As understanding of the non-visual benefits of light advances, LightingEurope’s OURANIA GEORGOUTSAKOU outlines the value proposition and efforts to support the roll-out of human-centric lighting in Europe.

Posted on 12 August 2019 | 1:13 pm

Nurse to lights: “Find a wheelchair, please!” (MAGAZINE)

University Medical Center Utrecht is outfitting luminaires with network-connected chips and sensors that keep track of all the equipment that goes astray at hospitals. The same technology should provide a number of other benefits, MARK HALPER discovers

Posted on 12 August 2019 | 1:05 pm

Current opens doors to outdoor SSL product development and manufacturing practices (MAGAZINE)

MAURY WRIGHT visited the Hendersonville, NC facility of Current for two days of presentations on outdoor lighting and smart cities, and reports on insight gained in the company’s approach to product development, manufacturing, and logistics.

Posted on 12 August 2019 | 1:03 pm

Evolving SSL luminaire designs demand innovative secondary optic designs (MAGAZINE)

LUCA MENEGHETTI of Khatod and MAURY WRIGHT examine the ongoing advancements in secondary optics for LED-based luminaires, including material options and innovation in design that deliver optimal optical performance.

Posted on 12 August 2019 | 1:01 pm

Sapphire turns six, nominations are open (MAGAZINE)

Sapphire Awards entries are now open. Consider the message you're sending to the judges with your impact statement or essay on your innovations.

Posted on 12 August 2019 | 1:00 pm

Bitcoins And 4 Things You Should Wary About It

The world is shifting its gear to Digital and cryptocurrency is going to be a major part of it. Moreover, Bitcoin is one of the most popular and widely used cryptocurrencies in the world. Bitcoin is widely used and have a few of the most exciting services and is also widely used in the world. […]

Posted on 12 August 2019 | 4:33 am

Researchers find electron current direction in photon-drag effect is dependent on surrounding environment

A team of researchers at the U.S. National Institute for Standards and Technology has found that electron current flow direction produced by the photon-drag effect is dependent on the environment in which a metal is sitting. In their paper published in Physical Review Letters, the group describes experiments they conducted with polarized light striking a gold film and what they learned.

Posted on 9 August 2019 | 2:30 pm

Physicists solve 2,000-year-old optical problem

A trio of physicists from the National Autonomous University of Mexico and Tec de Monterrey has solved a 2,000-year-old optical problem—the Wasserman-Wolf problem. In their paper published in the journal Applied Optics, Rafael González-Acuña, Héctor Chaparro-Romo, and Julio Gutiérrez-Vega outline the math involved in solving the puzzle, give some examples of possible applications, and describe the efficiency of the results when tested.

Posted on 9 August 2019 | 1:30 pm

Should we jettison novelty for refinement in LED and SSL technology?

The question of the day is what exactly defines innovation as we move into the realms of quality of light and experience.

Posted on 8 August 2019 | 5:19 pm

Osram invests in driverless car AI company

As Bain and Carlyle try to complete their takeover, Osram itself continues reshaping itself as a high-tech outfit, taking a venture stake in Silicon Valley startup Recogni.

Posted on 7 August 2019 | 8:58 pm

Researchers design a light-trapping, color-converting crystal

Five years ago, Stanford postdoctoral scholar Momchil Minkov encountered a puzzle that he was impatient to solve. At the heart of his field of nonlinear optics are devices that change light from one color to another—a process important for many technologies within telecommunications, computing and laser-based equipment and science. But Minkov wanted a device that also traps both colors of light, a complex feat that could vastly improve the efficiency of this light-changing process—and he wanted it to be microscopic.

Posted on 7 August 2019 | 6:45 pm

LED filament lamps gain prominence, launching IP action from UCSB and others

Amazon, Bed Bath & Beyond, Ikea, Target, and Walmart are targeted by the University of California at Santa Barbara for selling patent-infringing LED filament lamps.

Posted on 6 August 2019 | 5:10 pm

Non-invasive imaging method spots cancer at the molecular level

Researchers for the first time have combined a powerful microscopy technique with automated image analysis algorithms to distinguish between healthy and metastatic cancerous tissue without relying on invasive biopsies or the use of a contrast dye. This new approach could one day help doctors detect cancer metastasis that is otherwise difficult to see via standard imaging technologies during operations.

Posted on 6 August 2019 | 4:24 pm

Raman spectroscopy poised to make thyroid cancer diagnosis less invasive

Researchers have demonstrated that an optical technique known as Raman spectroscopy can be used to differentiate between benign and cancerous thyroid cells. The new study shows Raman spectroscopy's potential as a tool to improve the diagnosis of thyroid cancer, which is the ninth most common cancer with more than 50,000 new cases diagnosed in the United States each year.

Posted on 5 August 2019 | 5:01 pm

Physicists measure how electrons in transition metals get redistributed within fraction of optical oscillation cycle

Researchers in the Department of Physics of ETH Zurich have measured how electrons in so-called transition metals get redistributed within a fraction of an optical oscillation cycle. They observed the electrons getting concentrated around the metal atoms within less than a femtosecond. This regrouping might influence important macroscopic properties of these compounds, such as electrical conductivity, magnetization or optical characteristics. The work therefore suggests a route to controlling these properties on extremely fast time scales.

Posted on 5 August 2019 | 4:11 pm

Lessons of conventional imaging let scientists see around corners

Along with flying and invisibility, high on the list of every child's aspirational superpowers is the ability to see through or around walls or other visual obstacles. That capability is now a big step closer to reality as scientists from the University of Wisconsin-Madison and the Universidad de Zaragoza in Spain, drawing on the lessons of classical optics, have shown that it is possible to image complex hidden scenes using a projected "virtual camera" to see around barriers.

Posted on 5 August 2019 | 3:00 pm

DLC turns over the soil for updates to horticultural lighting requirements

In a Q&A, DAMON BOSETTI provides context around some proposed changes to the DLC’s Horticultural Lighting Technical Requirements.

Posted on 2 August 2019 | 5:00 pm

Horticultural lighting news: Seoul boosts lettuce yield, LumiGrow adds products

Seoul SunLike LEDs boost lettuce mass and increase antioxidant content, while LumiGrow has new luminaires for cannabis growers and a smart sensor for pathogen detection.

Posted on 2 August 2019 | 4:37 pm

New toolkit for photonics: Quantum simulation by light radio

Intensive research is being carried out on quantum simulators: they promise to precisely calculate the properties of complex quantum systems, when conventional and even supercomputers fail. In a cooperative project, theorists from the the Max Planck Institute of Quantum Optics in Garching anf the Consejo Superior de Investigaciones Científicas (CSIC) have now developed a new toolbox for quantum simulators and published it in Science Advances. It uses the Nobel Prize-winning principle of topology to allow quantum bits, for example individual atoms, to communicate with each other via "topological radio channels." The "radio channels" are provided by a light field that travels in waveguide in a robust manner with the help of topology. The concept offers room for completely new ideas, ranging from basic research to quantum information.

Posted on 2 August 2019 | 11:15 am

System to image the human eye corrects for chromatic aberrations

Researchers report a new imaging system that cancels the chromatic optical aberrations present in a specific person's eye, allowing for a more accurate assessment of vision and eye health. By taking pictures of the eye's smallest light-sensing cells with multiple wavelengths, the system also provides the first objective measurement of longitudinal chromatic aberrations (LCA), which could lead to new insights on their relationship to visual halos, glare and color perception.

Posted on 1 August 2019 | 3:39 pm

Quantum light sources pave the way for optical circuits

An international team headed up by Alexander Holleitner and Jonathan Finley, physicists at the Technical University of Munich (TUM), has succeeded in placing light sources in atomically thin material layers with an accuracy of just a few nanometers. The new method allows for a multitude of applications in quantum technologies, from quantum sensors and transistors in smartphones through to new encryption technologies for data transmission.

Posted on 1 August 2019 | 3:37 pm

Q3 losses mount at Osram as September takeover deadline approaches

The quarter showed “no signs of revival.” Shareholders have until Sept. 5 to approve a bid by Bain and Carlyle.

Posted on 31 July 2019 | 9:46 pm

Laser solitons: Theory, topology and potential applications

In almost all situations, even in a vacuum, light cannot travel endlessly without dissipating. Pulses of light known as solitons that propagate along fibres for long distances without changing their shape or losing focus have found applications in data transmission, but even these gradually dissipate unless the medium they travel through has ultra-low absorbance. Nikolay Rosanov of the National Research University of Information Technologies, Mechanics, and Optics (ITMO), St. Petersburg, Russia and his team have been working on a solution to this problem—laser solitons—since the 1980s; a colloquium paper summarising their recent work in this area has now been published in The European Physical Journal D.

Posted on 31 July 2019 | 4:21 pm

SPEX project gets wings: first measurements SPEX airborne published

Researchers from SRON Netherlands Institute for Space Research have published the first results of SPEX airborne, a spectrocalorimeter to measure aerosols. The polarization measurements aboard NASA's research aircraft ER2 have proven to be accurate beyond expectations, with an average maximum deviation of 0.5 percent from reference data. The results are published in Applied Optics.

Posted on 31 July 2019 | 11:23 am

Flat lenses with a twist

Overlaying two film layers patterned with a nanoscale array can manipulate the propagation of light to create a powerful ultrathin lens.

Posted on 30 July 2019 | 2:07 pm

Packaged LED news: Nichia lights museums, Osram adds LEDs for work lamps

German museums are trialing LED lighting based on Nichia’s Optisolis technology while Osram Opto has announced a new high-power LED for portable work lamps.

Posted on 29 July 2019 | 9:39 pm

Recovering color images from scattered light

Engineers at Duke University have developed a method for extracting a color image from a single exposure of light scattered through a mostly opaque material. The technique has applications in a wide range of fields from healthcare to astronomy.

Posted on 29 July 2019 | 6:49 pm

Signify buys 51% of Chinese LED lamp maker, as sales again dip but earnings strengthen

CEO Eric Rondolat says the company is reversing an outsourcing trend, bringing manufacturing more in house. He hopes the Klite acquisition improves control of costs, supply, and intellectual property.

Posted on 26 July 2019 | 9:30 pm

July/August issue will break through the summer haze

The July/August issue of LEDs Magazine reflects some of the latest industry topics we’ve covered across the site and blog.

Posted on 26 July 2019 | 7:46 pm

Austrian sensor company ams is interested in Osram after all

AMS changes its mind, and might now challenge the bid by Bain Capital and Carlyle Group.

Posted on 25 July 2019 | 10:18 pm

Current redefined, again: They make lamps and lighting fixtures

Not that the ex-GE company is forsaking the IoT, but there’s more back-to-the-future than ever under the new industrial-focused owners. Have a look at the revised mission statement.

Posted on 24 July 2019 | 3:55 pm

Tridonic supplies mesh wireless controls for LED retrofit of historic Swiss church

The historic Temple de Lutry near Lake Geneva dates to the 11th century yet now features a state-of-the-art SSL installation with Casambi wireless technology.

Posted on 23 July 2019 | 4:47 pm

Osram Opto expands horticultural LED line with purple and broader white spectra

A phosphor-converted purple LED delivers the blue and red spectral energy that’s conducive to photosynthesis; a new white LED delivers enhanced far-red energy.

Posted on 22 July 2019 | 7:24 pm