Cathedral Shines with LEDs

The reach of LED technology is making its way to ancient cathedrals of all places. One cathedral that is utilizing the latest LED lighting technology, to not only improve the experience for visitors to the cathedral, but to also save on energy costs is the Milan cathedral in Italy. In preparation for this years long awaited EXPO 2015, the organization that manages the cathedral has been investing heavily in switching the facility over to LED lighting. LED testing expert, Gooch & Housego, explains.

Local Lighting Designers Presented With a Unique Problem

Local lighting designers Ferrara Palladino e Associati were commissioned to help convert the Milan cathedral over to LED lighting. Their task was to replace the current spotlights and lenses with an LED system that complemented the historic features of this wondrous structure, as well as to reduce the operating costs for energy usage going forward.

The old lighting system consisted of 175 flood lights each with 400w lamps that were strategically mounted at the base of the cathedral to provide a uniform illumination of the inside of the structure. While this solution was economical during its day, it has long become obsolete thanks to all of the advances in lighting technology.

Lighting designers chose LED lighting technology from ERCO, which included LED lenses that allowed new design opportunities. The old lighting system used a cool color that resembled daylight, while the new LED system uses LEDs with 4000K outputs that offer a calmer ambiance and make the ancient structure look more natural.

Significant Cost Savings With LED Lights

This project was able to cut energy usage by almost two thirds, going from 70kW to 23.7kW. This large drop in energy usage earned the project an A+ energy efficiency rating as well as an Environmental Friendly Innovation Award by Italian organization Legambiente.

Future is Bright for Historic Buildings

As was the case with the Milan LED lighting project, other historic buildings should take note of the energy savings, as well as the aesthetic improvements, that can be seen with LED lighting. For more information on our products and services, such as LED test and measurement solutions, please contact Gooch & Housego at (800) 899-3171.

LEDs Improve Again with the Help of Nanowires

New studies in LED testing have shown that LEDs created with nanowires use smaller amounts of energy and give off improved light. Researchers examined nanowires using X-rays and were able to find precisely how the nanowire should be composed in this technique.

A nanowire is extremely small, roughly two mircometers high and ranging from 10-500 nanometers in diameter. Nanowires have an inner core made up of 2 semiconducting metals: gallium and indium-gallium-nitride. The mechanical tension between these two semiconductors forces light to be dependent in the LED and when the two come in contact with one another, the tension becomes increasingly more dependent. Scientists studied many nanowires using X-rays at the microscopic level, and although the nanowires should have been the same, they discovered the nanowires were rather unique in composition.

This development in LED testing was discovered when 20 nanowires were measured and studied. The results showed very clear and detailed images of each nanowire. The composition of the outer layer and inner core were easily visible, allowing researchers to spot any structures that were subtly bent. The structures with these issues don’t perform as well, therefore researchers can tell precisely what nanowires will perform the best and have the most efficiency in the inner core and outer layer structures. Although the process is usually time consuming, scientists were able to study many nanowires at one time through the use of a unique design of an X-ray that didn’t ruin any nanowires in the procedure.

The information from the production of these nanowires can help change the layer format in nanowires. LEDs made with these nanowires would give off light that appears more natural and use far less power. The technological uses of nanowires could also be used in other forms of lighting, like televisions and mobile devices within the next 5 years.
Knowing how LED testing is advancing and learning what new products are coming to the market in the near future is important. For any questions you may have about Gooch and Housego’s products and services, please call 407-422-3171, or contact us online.

A New Lasing Technique Creates New Grid

As a result of recent research in lasing processes by Brookhaven National Laboratory, they have discovered a new patterning technique that can create large, nanostructured grids that could improve production of solar cells, optical coatings, and touch screens. Objects at the nanoscale level only reach billionths of a meter. However, their shape and size can create strong visual effects and electronics. That’s why it has been difficult in LED testing for researchers to build bigger materials that hold faint nanoscale attributes.

By overcoming these hardships, scientists have found a way to quickly make nano-structured grids for usable materials with extraordinary adaptability. Researchers can now create multi-layer grids made of various materials in nearly any geometric shape. In rapidly and separately handling the nanoscale composition and shape, scientists can fabricate the ability of these materials. Most importantly, the technique used to make the nanoscale structures can easily be applied to bigger functions. With this new breakthrough, the outcome in having these materials on the larger scale can lead to the evolution of enhanced solar cells, optical coatings, and touchscreen devices.

The new method depends on polymer self-production, where molecules are made to randomly come together into aspired compositions. Self-production needs a burst of heat to create molecules that connect into the right formations. In a matter of seconds, polymer blocks that were in complete disarray, morphed into exact configurations when an extremely hot laser moved across it. Structures that are self-assembled often follow molecular preferences on their own. This makes creating unique structures difficult. The new method discovered by researchers in LED testing has allowed them to force these stubborn materials to come together in certain ways. The structures can be built layer-by-layer, creating frames made of multiple shapes.

The scientists at Brookhaven National Laboratory have come far in the world of LED testing. Their developments will advance technology even further and enable them to understand more about lasers and the many uses they have. Gooch & Housego also continues to produce and supply customers with many LED testing and services. Please contact us at 407-422-3171 today for any questions you may have about our business.

This LED Can be Stuck to the Wall?

New developments in LED testing have helped pave the way to OLEDs (organic light-emitting diode) sticking to a wall with the help of a magnetic mat. The OLED is removable and would be able to stick to the wall or even come off just as easily. South Korean company, LG, created an OLED TV that is so thin it measures in at 0.97 mm and is 55” in length, weighing only 4.2 pounds. Prior to this new technological phenomenon, the existing 55” OLED TV by LG was 4.3 mm thick.

During LG’s media event, they used a magnetic mat that could attach and detach from the OLED TV and placed it on a wall. Removal of the TV screen is simple because it is so thin it peels right off the magnetic mat as if it were one large sticker.

LG’s reveal shows that they may see high-end TVs as an engine for growth. Just earlier this year, LG released three different large size OLED displays and has ultimately showed how much they plan on focusing on organic LEDs. In LG’s efforts to use organic LED TVs over LED TVs, they’ve managed to create extremely thin screens with the ability to curve. Back lights will also no longer be needed in sets as organic material creates its own light. With its own light emission, OLED screens can be very thin and are being used not only for TVs, but also for mobile products.

Although there have been new developments in LED testing that tease home owners of a new TV they could stick to their wall, it’s unlikely it’ll hit the market anytime soon. The technology will most likely be used in vehicle manufacturing, commercial applications or wearable technology. There is no mistaking how far developers have come in the organic LED field, and Gooch & Housego are proud to be a part of the same industry.

For more news and updates on the LED field, please continue to browse our website. If you have any questions, comments, or concerns about our products or LED testing services, feel free to call us at 407-422-3171.

Organic LED Lasers Almost a Reality Thanks to Nanostructures

A big step forward in producing organic lasers has come through the use of thinly-patterned nanostructures. Nanostructures have the ability to make bright, low-energy light sources which enables them to create organic LEDs. Researchers have used spectroradiometers to measure LEDs, but have long sought to create organic lasers. Unfortunately, carbon-based semiconductors tend to work inefficiently at the elevated currents needed to overcome overheating during lasing. This affected the production of organic LEDs until the breakthrough with nanostructures.

Lasers typically require extremely high electric currents to operate, albeit inefficiently. Such currents are not practical for regular displays and lighting. This makes using lasers in such applications very difficult. Dr. Thuc-Quyen Nguyen, a professor at the University of California, Santa Barbara, and her team gathered together with other researchers from Japan to solve the problem that high electric currents were causing during lasing. Their work with nanostructures helped them find a way toward creating organic lasers.

In using electron-beam lithography, the efficiency roll-off problem could be answered. The remedy was using electron-beam lithography to create thinly-patterned OLED structures. The small object area kept 100 times higher brightness coherence than prior recordings. The largest result in repressing efficiency roll-off was seeing an increase in efficiency at high luminescence. The outcome was achieving the same luminescence with lower power.

With advances in organic LEDs through the uses of nanostructures, researchers will be able to expand on the field even further. New developments are being discovered as technology continues to improve. In the meantime, you may be interested in finding a way to easily quantify your OLED laser efficiency. Our OL 770-Test and Measurement System spectroradiometer may be what you’re looking for, so contact Gooch & Housego at 407-422-3171 for any further questions you may have.

Gooch & Housego Instruments: IEC 62471 Photobiological Hazard Measurements

The lighting industry is much different today than it was just a few years ago. With new types of lighting being released all the time, it’s important that all of these new lighting sources are properly regulated.

Important IEC 62471 Standards

The government enacted tough lighting standards to help evaluate and control the optical radiation hazards from lamps at all points of human access through a standardization of measurement techniques. These standards deal with spectroradiometric measurements of extended light sources, as opposed to point sources, in terms of radiance and irradiance. These sources can be altered by filtration, projection, and diffusing options in terms of distribution and spectral content. The International Electrotechnical Commission standards also take into account retinal hazard, distance, projected size, and response.

Manufacturers Required to Meet IEC Standards

All manufacturers of lighting sources are required to measure the amount of light produced and evaluate human hazards in accordance with the latest IEC standards.

Gooch & Housego Offers a Robust Spectroradiometer System

At Gooch & Housego, we provide a top of the line spectroradiometer system that allows lighting manufacturers, as well as independent testing laboratories around the world, the chance to properly test their different types of lighting in accordance with IEC 62471 standards. We have a specially configured spectroradiometer system based on the OL 750D double monochromator that is designed to test all types of light hazard laid out in the IEC specifications. The flexibility of our system allows testers the flexibility to make quick modifications to the system between tests. Our solution also has OL 750D software that allows for direct reporting into MS Word and MS Excel to allow for easy access to all necessary lighting data.

For more information on our spectroradiometer system for IEC62471 photobiological hazard measurements, reach out to Gooch & Housego today at 800-899-3171.

LED Uses Becoming More Diversified

With the decrease in cost, LED lighting is being used for much more than just cheap, environmentally-friendly lighting. Analysts are expecting LED lighting uses and applications to see a big jump through the use of UV LED technology. LED testing leaders, Gooch & Housego, explain UV LED technology and what it means for the industry.

Uses for UV LED Technology

The potential uses for UV LED technology are almost endless. Analysts are seeing immediate applications in purification and disinfection by 2017. The traditional UV lamp business is slowly being replaced by UV LED technology, which is much cheaper and less intrusive on the environment.

New Technology Growing at a Rapid Clip

According to researchers, the growth of the UV LED market in UV curing has been nothing short of astounding. In 2008, the market was only around $20 million, but grew to around $90 million in 2014, which is a compounded yearly growth rate of over 28%. Analysts predict that as UV LED technology is used for other applications like purification and disinfection that the market will grow to at least $500 million by 2019.

These LED Applications are Only the Start

Researchers point out that if LED lighting continues to take over other industries, including horticultural lighting, general lighting, biomedical devices, and other applications, the growth of the industry will grow much larger than these initial estimates. LED lighting is no doubt a complete game changer in the lighting industry, and big name manufacturers are scrambling to produce as much of this type of lighting technology as possible to meet the growing demands.

Gooch & Housego Excited About Future LED Applications

It is through uses like those mentioned above that get the team at Gooch & Housego extremely excited about the potential uses for LED lighting. If you have any questions about LED lighting, don’t hesitate to contact LED testing experts, Gooch & Housego, by calling them toll free at 800-899-3171.

Some Waterparks are Stepping up Their Game with LEDs

Waterparks around the world are always looking for bigger and better ways to appeal to thrill seekers. While waterparks have attempted to create larger waterslides to cater to park attendees, few parks have used technology to help provide their guests an experience like nothing ever seen before. Gooch & Housego, leaders in LED testing, explains how these parks are incorporating LED lighting in their attractions.

German Park Using LED Lighting to Improve Experience

An indoor pool facility on the German coast of Bremerhaven is taking the idea of a waterslide to a whole new level through the use of LED lighting. This new LED slide allows participants to feel as if they are traveling through a wormhole full of multicolor rings, powered by a whole host of LED lights. While the waterslide looks completely normal from the outside, once inside sliders quickly realize that this is unlike any slide in the area. The slide is 25 feet tall and 256 feet in length which gives thrill seekers plenty of time to enjoy this unbelievable LED light show.

Waterpark Features Multiple LED Lighting Effects

Thanks to cutting edge LED technology, waterpark officials can display a variety of different lighting effects, including multicolored rings as well as a starry sky just before the sun begins to rise. With this technology, waterpark attendees will be excited to jump in the slide to see what sort of LED light show is being displayed at the time. As waterparks strive to bring in more attendees each year, it’s technology like this that should help parks’ attendance numbers.

Gooch & Housego

Gooch & Housego offers a variety of LED testing equipment used in the manufacturing of products such as these LED waterslides. If you’re interested in learning about the LED lighting, contact Gooch & Housego today by calling 800-899-3171.

Laser Stimulation Reveals New Details in Fossils

Researchers in Kansas are discovering that lasers are offering fossil details previous unseen with traditional UV light.  Paleontologists are extremely excited about these new findings as they could help identify fossils in soil more quickly and possibly even detect fake fossils. Gooch & Housego, the leader in light metrology, laser optics and spectral imaging devices, explains:

  • Lasers First Used to Examine a Microraptor From China: Researchers initially used lasers several years ago when examining a microraptor from China. During their research, they actually found a secondary fossil in the material surrounding the microraptor. Once this second fossil was found, it was sent to Thomas Kaye with the Burke Museum who actually pioneered this laser technique.
  • Technology Hhs Improved Since Original Usage: Since the initial use of lasers, researchers have fine-tuned their techniques to be more effective. Laser technology has become cheaper as of late allowing researchers to purchase short wavelength lasers on Internet sites like eBay to experiment with. By using digital photography equipment, researchers have developed a variety of techniques to reveal intricate details from fossils that would be impossible using traditional UV light.
  • Lasers can Also Detect Fakes: One of the largest benefits of using lasers in fossil identification is the ability to detect fakes. Museums are always looking for the next huge fossil find, which has created a market for extremely detailed fraudulent fossils.  These fraudulent fossils may be completely fake or a combination of fossils from different places brought together to look real. Previously, these fakes were extremely hard to identify, yet with lasers, museums are more easily able to spot fraudulent fossils.

Gooch & Housego Offers a Variety of Spectral Imaging Devices

Much like lasers, hyperspectral imaging devices allow light to be divided into many bands, which can be extended far beyond what is visible to the human eye. For more information on our spectral imaging devices, like our popular HSi-440C, contact us today toll free at 800-899-3171.

The Skin from a Squid Furthers IR Technology

“Look deep into nature, and then you will understand everything better.” – Albert Einstein

Scientists from the University of California, Irvine have recently found that this quote from Albert Einstein rings true when it comes to squid skin. These researchers recently discovered that squid skin can be adapted to create a form of IR camouflage for soldiers. Optical radiation, light measurement and imaging experts, Gooch & Housego, explains:

  • Researchers Have Developed a Film to Reflect Infrared Light: Scientists have developed a type of sticky film that, when stretched, offers a level of IR camouflage to avoid detection from thermal cameras.
  • Help for Our Soliders: In the past, soldiers have worn brown and green camouflage uniforms to blend into with their surroundings during the day. While this works well in foliage during the day, these uniforms leave soldiers vulnerable to detection in low light or night situations. Researchers developed stickers that can be used in these situations to match a soldier’s infrared reflectance to the background, which helps to prevent detection.
  • Squid Skin Explained: Squid skin uses cells that are known as iridocytes that contain a protein called reflectin. Squids then are able to change the thickness and spacing of these layers of proteins to alter how the cells can reflect light.
  • Researchers Focused on Inexpensive Solution to Problem: Researchers have found that the most inexpensive way to utilize this technology is to create a disposable type of adhesive that can easily stick to and be removed from uniforms.  This way soldiers could quickly apply the tape to avoid detection and then dispose of it shortly thereafter.

Gooch & Housego IR Detection Products Help Determine IR Levels

At Gooch & Housego, we manufacture a variety of IR detection equipment, including the spectroradiometers 770-NIR and 750-NVG which make IR detection a snap. For more information on our suite of products, contact us today toll free at 800-899-3171.