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Home > Industries > Disinfection driving UV lighting market
Disinfection driving UV lighting market
Yole Développement
Beatrice O'Flaherty
The UV lighting market will double or treble in size in the next five years, driven by disinfection and new functionalities.
"There is good in everything bad", asserted Pars Mukish, Business Unit Manager, Solid-State Lighting & Display at Yole Développement (Yole). "For example, The COVID-19 pandemic has created some perfect use-cases for UV lighting technologies to spread throughout a rapidly changing disinfection market."
Indeed, SARS-COV-2, the virus that causes COVID-19, has one of the highest reproduction/transmissibility rates among all viruses that have emerged in our modern society. To reduce the spread of the disease, light in the UVC wavelength band, which can deactivate bacteria and viruses through physical methods, has gained unprecedented attention. Overall, there will be a "before" and an "after" the COVID-19 pandemic for the UV lighting industry.
According to Joël Thomé, CEO of PISEO: "Indeed, the health crisis due to the SARS-CoV-2 virus has generated unprecedented demand for the design and manufacture of disinfection systems using optical UV rays. LED manufacturers have seized this opportunity, and we are currently seeing an explosion in UV-C LED products."
In this context, the two companies Yole and PISEO combined their expertise to investigate the disruptive LED technologies and related markets in depth. The partners highlight the latest innovations and underline the business opportunities. They analyze the latest technology and market trends in the specific context of the COVID-19 pandemic, which has strongly impacted the UV industry in general.
The 'UV LEDs and UV Lamps – Market and Technology Trends 2021' report from Yole is a comprehensive survey of UV light sources, providing a deep understanding of the UV lamp and UV LED businesses. It also reviews and details the traditional UV lamp market, its main applications and associated characteristics, the market metrics, leading players' positioning and strategies.
Considering the impact of the COVID-19 pandemic on all aspects, Yole's report reviews the overall UV LED industry and provides insights into changes in the value/supply chain after the penetration of this disruptive technology.
In parallel, the UV-C LEDs in the 'Time of COVID-19 - Update November 2021' from PISEO discusses the technical state-of-the-art of UV-C LEDs and possibilities for further development of performance and price. This technical analysis offers a comparative overview of the products of the 27 leading UV-C LED manufacturers.
What is the status of the UV LED industry? What are the economic and technological challenges? What are the key drivers? Who are the suppliers to watch, and what innovative technologies are they working on? How does the COVID-19 outbreak impact each UV LED market segment? PISEO and Yole deliver today a detailed and comprehensive overview of this industry.
As analysed in the new 'UV LEDs and UV Lamps – Market and Technology Trends 2021' report, on the one hand, UV lamps are historic, establi The UV lighting market will double or treble in size in the next five years, driven by disinfection and new functionalities. shed, and mature technologies in the UV lighting market. Business before the COVID-19 pandemic was driven mostly by polymer curing with UVA wavelength light and water disinfection with UVC light. On the other hand, UV LED technologies are still emerging. Until recently, business was mostly driven by UVA LEDs. It was only a few years ago that UVC LEDs reached the performance and cost specifications of early adopters and started generating revenue.
According to Pierrick Boulay, Senior Technology & Market Analyst, Solid-state Lighting at Yole: "Both technologies will benefit, but on different timelines. In the very short term, UV lamps might dominate end-systems because they are already established and easy to integrate. However, this proliferation of applications is a catalyst for the UV LED industry that will further push the technology and its performance forward. In the middle-to-long term, several end-systems might further adopt UV LED technology".
The UV lighting market overall was worth around $400m in 2008. By 2015 UV LEDs alone were worth $100m. In 2019, the total market reached $1bn as UV LEDs spread into UV curing and disinfection. The COVID-19 pandemic has then driven demand, increasing total revenues by 30% in just one year. In this context, Yole's analysts expect the UV lighting market to be worth $1.5bn in 2021 and $3.5bn in 2026, with a CAGR2021-2026 for this period of 17.8%.
Numerous industries and players supply UV lamps and UV LEDs. Signify, Light Sources, Heraeus, and Xylem/Wedeco are the top four UVC lamp players, while Seoul Viosys and NKFG are currently leading the UVC LED industry. There are few overlaps between the two industries. Yole's analysts expect this to remain the case even though some UVC lamp players, such as Stanley and Osram, are diversifying their activities into the UVC LED field.
Overall, the UVC LED industry is likely to be the most transformed by recent trends. The industry has waited for more than 10 years for this moment to happen. All the players are now ready to grab a piece of this booming market
Another factor can also be further analysed to get a better understanding of the UV LED industry.
The number of UV-C LED-related patents filed in the last two years has exploded, thereby illustrating the dynamism of research in this area, states PISEO. In its new UV-C LED report, PISEO offers a particular focus on key patents of 4 LED manufacturers. This selection is relevant as it highlights the main challenges of the rollout of this technology: intrinsic efficacy and cost. Yole also offers a complementary analysis of the patent landscape. The need for disinfection and the opportunity to use small light sources enabled the creation of increasingly compact systems. This evolution, including new form factors, has clearly generated renewed interest on the part of LED manufacturers. Wavelength is also a key parameter for germicidal efficiency and optical risk assessment.
The need for disinfection and the opportunity to use small light sources enabled the creation of increasingly compact systems. This evolution, including new form factors, has clearly generated renewed interest on the part of LED manufacturers. Wavelength is also a key parameter for germicidal efficiency and optical risk assessment.
In the 'UV-C LEDs in the Time of COVID-19 - analysis' report, Matthieu Verstraete, Innovation Leader and Electronics & Software Architect at PISEO, explaine: "Although currently relatively scarce and expensive, several system manufacturers, such as Signify and Acuity Brands, are taking a close interest in sources emitting a 222 nm wavelength due to the harmlessness of this optical radiation on the human body. Several products have already been placed on the market, and there are more to come which integrate excimer sources made by the company Ushio."
PISEO's specialists are therefore reviewing the state of medical research, the technology of sources emitting at 222 nm, the germicidal effect of this wavelength, the regulatory environment, and the roadmaps produced.
Selected: Lighting Aerospace & Defence Alternative Energy Automotive Industrial Medical Production Robotics Security Wireless
A selection of Lighting articles for further reading
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Anglia adds cost effective LED indicators
Makita provide the illumination needed for safer working
Pharos takes the circle at Zurich airport to new heights
ZALUX's explosionproof lighting
Omron presents bistable relay with high switch-on performance
Lumileds has upgraded its LUXEON HL2X portfolio
DALI+ and wireless gateways explained in new DALI Alliance technical guides
Emergency lighting control strengthens interoperability for safety-critical applications


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Q: Subtract values on column "cantidad" I need to subtract (cantidad 1 - cantidad 0) (cantidad 2 - 1 cantidad) (cantidad 3 - cantidad 2) for each line (that is my key field).
My SQL:
SELECT linea, producto, cantidad, operario, fecha
FROM registro_cantidad_producida

Current Result:

Expected Result:

A: You can use a correlated subquery to calculate the previous result:
select t.*,
       coalesce( t.cantid -
                 (select t2.cantid
                  from t t2
                  where t2.linea = t.linea and t2.fecha < t2.fecha
                  order by t2.fecha desc
                  limit 1
                 ),
                 t.cantid
                )
from t;

redpajama_set_name: RedPajamaStackExchange


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cspan earwax florida gawker gross joe garcia kevin rudd pt wax on! wax off! third-grade humor
Florida Congresscritter Will Now Be Famous For Eating Ear Crud On C-Span
If, like Yr Wonkette, you aren't from Florida, chances are pretty good that the name and title "Congressman Joe Garcia (D-Florida)" do not instantly make anything spring to mind. We had to go to the Source of All Internet Truth ourselves, and we actually did have a brief moment of recognition near the middle of the piece when we saw that his chief of staff/ campaign manager had pleaded guilty in 2013 to an attempted absentee vote-registration scam in the 2012 primary, which didn't exactly rise to National Outrage, but did get cited by some wingnuts as an excellent reason for Voter ID laws (which rather misses the "absentee" part). But now, Rep. Garcia has an actual achievement to his name: He is The Guy Who Picked His Ear On C-SPAN And Ate What He Found. God Bless You, Mr. Garcia.
Gawker brings us both the video:
And the inevitable animated .gif:
Take your pick.
Actually, it's a perfectly normal primate behavior, though usually you want to save that sort of thing for being stuck in traffic, where nobody can see you. Can't imagine anyone liking the taste, though, said Yr. Dok Zoom, on the basis of his sole 3rd-grade experiment with the practice.
Rep. Garcia is actually in pretty good company, as former Australian Prime Minister Kevin Rudd was also caught on camera having a little taste of Eau de Earcanal in 2007:
We're rather impressed with the self-assured Rudd's direct ear-to-mouth technique, although from a consumer perspective there's also something to be said for Garcia's careful visual inspection of the sample before ingesting it.
We now return you to the last six rows of the schoolbus on a field trip.
[Gawker]
Follow Doktor Zoom on Twitter. Boogers are also treyf.

redpajama_set_name: RedPajamaCommonCrawl


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Home Consumer Windows 8 Coming Soon, Release Preview Here
Windows 8 Coming Soon, Release Preview Here
[Techtaffy Newsdesk]
The Windows 8 Release Preview is now available for download. Since the February release of Windows 8 Consumer Preview, which was downloaded more than 1 million times in the first 24 hours, Windows 8 has become the most tested Microsoft operating system of all time, says Microsoft. With this release, Windows 8 enters its final phase of development before it releases to manufacturing.
Microsoft will roll out the Windows Upgrade Offer in 131 markets, including the U.S. and Canada, beginning June 2, 2012. Users buying Windows 7-based PCs through Jan. 31, 2013, can purchase an upgrade to Windows 8 Pro for an estimated retail price of $14.99 during the time of the promotion.
Windows 8 Release Preview is touch-ready, and delivers new apps from Microsoft and partners. Highlights include Bing Travel, News and Sports apps, as well as Gaming and Music Xbox apps that integrate with Zune pass. The Windows 8 Release Preview also features improvements to the Mail, Photos and People apps that initially debuted with the Windows 8 Consumer Preview. In addition, there are partner apps through the Windows Store.
A touch-friendly and power-optimized Adobe Flash Player is now integrated into Internet Explorer 10, and it is also the first browser to feature Do Not Track "on" by default, giving customers more choice and control over their privacy.
[Image Courtesy: Microsoft]


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Microsite es: . Grupo: 1
/sites/default/files/uploads/nanooptics.png
Home » Research » Groups » Nanooptics » News » Vibrational Encounters – Phonon Polaritons Meet Molecules
Vibrational Encounters – Phonon Polaritons Meet Molecules
Researchers from CIC nanoGUNE BRTA (San Sebastian, Spain), in collaboration with the Donostia International Physics Center (San Sebastián, Spain) and the University of Oviedo (Spain) employed a spectroscopic nanoimaging technique to study how infrared nanolight - in form of phonon polaritons - and molecular vibrations interact with each other. The images reveal that vibrational strong coupling can be achieved, which is a phenomenon that recently attracts wide attention for its potential use to control fundamental physical and chemical material properties. The result could lead the development of a novel platform for on-chip chemical identification of tiny amounts of molecules and for studying fundamental aspects of strong coupling phenomena on the nanometer scale. The work has been published in Nature Photonics (DOI: 10.1038/s41566-020-00725-3).
figure.png
Light plays an essential role in modern science and technology, with applications ranging from fast optical communication to medical diagnosis and laser surgery. In many of these applications, the interaction of light with matter is of fundamental importance.
At infrared frequencies, light can interact with molecules via their vibrations that occur at molecule-specific frequencies. For that reason, molecular materials can be identified by measuring their infrared reflection or transmission spectra. This technique, often called infrared fingerprint spectroscopy, is widely used for the analysis of chemical, biological and medical substances.
Recently, it was found that the interaction between infrared light and molecular vibrations can be so strong that eventually the material properties are modified, such as conductivity and chemical reactivity. This effect – called vibrational strong coupling – can occur when a material is placed into a microcavity (typically formed by mirrors that are separated by micrometer-size distances) in which the light is concentrated.
The strength of the interaction between light and matter strongly depends on the amount of matter. Consequently, the interaction weakens when the number of molecules is reduced, challenging infrared spectroscopy applications and eventually preventing strong vibrational coupling to be achieved. This problem can be overcome by concentrating light in nanocavities or by compressing its wavelength, which leads to light confinement.
"A particularly strong compression of infrared light can be achieved by coupling it to lattice vibrations (phonons) of thin layers of high-quality polar crystals. This coupling leads to the formation of infrared waves – so-called phonon polaritons – that propagate along the crystal layer with a wavelength that can be more than ten times smaller than that of the corresponding light wave in free space", says Andrei Bylinkin, first author of the work.
Now, the researchers have studied the coupling between molecule vibrations and propagating phonon polaritons. First, they placed a thin layer of hexagonal boron nitride (less than 100 nm thick) on top of organic molecules. Hexagonal boron nitride is a van der Waals crystal from which thin high-quality layers can be easily obtained by exfoliation. Next, it was necessary to generate phonon polaritons in the thin boron nitride layer. "This cannot be achieved by just shining infrared light onto the boron nitride layer, because the momentum of light is much smaller than the momentum of the phonon polaritons", says Andrei Bylinkin.
The problem of the momentum mismatch was solved with the help of the sharp metal tip of a scanning near-field microscope, which acts as an antenna for infrared light and concentrates it to a nanoscale infrared spot at the tip apex that provides the necessary momentum to generate phonon polaritons. The microscope also plays a second important role. "It allowed us for imaging the phonon polaritons that propagate along the boron nitride while interacting with the nearby organic molecules", says Rainer Hillenbrand who led the study. "That way we could observe in real space how the phonon polaritons couple with the molecular vibrations, thereby forming hybrid polaritons", he added.
The set of images that were recorded at various infrared frequencies around the resonance of the molecular vibrations revealed various fundamental aspects. The hybrid polaritons are strongly attenuated at the frequency of the molecular vibration, which could be interesting for future on-chip sensing applications. The spectrally resolved images also showed that the waves propagate with negative group velocity, and most important, that the coupling between the phonon polaritons and the molecular vibrations is so strong that it falls into the regime of vibrational strong coupling.
"With the help of electromagnetic calculations we could confirm our experimental results, and further predict that strong coupling should be possible even between few atom thick layers of boron nitride and molecules", says Alexey Nikitin.
The possibility of strong vibrational coupling on the extreme nanometer scale could be used in the future for development of ultrasensitive spectroscopy devices or to study quantum aspects of strong vibrational coupling that have been not accessible so far.
Rainer Hillenbrand
Real-space observation of vibrational strong coupling between propagating phonon polaritons and organic molecules
Andrei Bylinkin, Martin Schnell, Marta Autore, Francesco Calavalle, Peining Li, Javier Taboada-Gutièrrez, Song Liu, James H. Edgar, Fèlix Casanova Luis E. Hueso, Pablo Alonso-Gonzalez, Alexey Y. Nikitin, and Rainer Hillenbrand
Nature Photonics, DOI: 10.1038/s41566-020-00725-3


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Q: Sql server greater than operator gives wrong result on datetime I just came across this and it looks weird. I can't understand why this is happening so I hope someone can explain it
My query is very simple
SELECT  OrderID, CustomerID,OrderDate  FROM  PrmOrder PO
WHERE 1=1
AND PO.OrderStatusID != 1
AND PO.IsOrderApproved = 1
AND PO.IsInventoryApproved = 0
AND (PO.OrderStatusID = 2 OR PO.OrderStatusID = 3
AND PO.OrderDate >= dateadd(day, datediff(day, 0, getdate()),0))

select dateadd(day, datediff(day, 0, getdate()),0) is returning this (beginning of today)
2016-10-10 00:00:00.000
Here the weird stuff begins, notice the first two rows
+---------+------------+-------------------------+
| OrderID | CustomerID |        OrderDate        |
+---------+------------+-------------------------+
|  204634 |     273952 | 2016-10-07 09:29:11.990 |
|  202224 |     274450 | 2016-10-08 13:55:54.613 |
|  205479 |     275010 | 2016-10-10 09:09:26.710 |
|  205185 |     275014 | 2016-10-10 09:42:11.587 |
|  205024 |     274595 | 2016-10-10 10:47:46.983 |
|  196984 |     220600 | 2016-10-10 10:56:45.227 |
|  204830 |     274330 | 2016-10-10 13:26:45.657 |
|  205494 |     275043 | 2016-10-10 11:16:57.220 |
|  205500 |     275031 | 2016-10-10 10:50:45.687 |
|  205512 |     275044 | 2016-10-10 11:17:39.590 |
|  205520 |     275090 | 2016-10-10 12:56:59.910 |
|  205525 |     275084 | 2016-10-10 12:34:47.317 |
|  205530 |     275079 | 2016-10-10 12:24:34.217 |
|  205531 |     275083 | 2016-10-10 12:28:25.597 |
|  205532 |     275085 | 2016-10-10 13:07:21.657 |
|  205537 |     275089 | 2016-10-10 13:03:10.037 |
|  205539 |     275100 | 2016-10-10 13:27:22.647 |
|  188617 |     247554 | 2016-10-10 13:54:22.833 |
|  204265 |     274312 | 2016-10-10 15:58:13.840 |
|  204409 |       9370 | 2016-10-10 13:36:48.963 |
|  205282 |     273520 | 2016-10-10 14:47:07.487 |
|  205549 |     275105 | 2016-10-10 13:41:44.940 |
|  205564 |     275138 | 2016-10-10 14:47:32.420 |
|  205568 |     275154 | 2016-10-10 16:05:48.547 |
|  205575 |     275150 | 2016-10-10 15:28:06.147 |
+---------+------------+-------------------------+

Does greater than operator have a different way of working with datetime types?

A: Try changing
AND (PO.OrderStatusID = 2 OR PO.OrderStatusID = 3
AND PO.OrderDate >= dateadd(day, datediff(day, 0, getdate()),0))

to
AND (PO.OrderStatusID = 2 OR PO.OrderStatusID = 3)
and PO.OrderDate >= dateadd(day, datediff(day, 0, getdate()),0)

A: Select * From table
where STR_TO_DATE(mydate, '%Y-%m-%d %H:%i:%s') >= dateadd(day, datediff(day, 0, getdate()),0);

Maybe the date stored in mysql doesn't have datetime format ?