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Cree has questioned CSP technology repeatedly in the past, suggesting that LEDs on a ceramic substrate offer superior performance and that the component manufacturing steps eliminated by a move to CSP technology would not pay off. That concept was debated at a Strategies in Light panel back in 2015. Still, the idea of a packaged LED matching the footprint of the chip is attractive in applications such as directional lighting where many LEDs are tightly arrayed. And in early 2017, Cree announced the NX architecture that would deliver a footprint near that of the chip while still including a ceramic substrate.

“Out with the old, in with the new” is a great motto for a new year… and one that those of us who love archival music releases try to pay as little attention to as possible. If you have some gift cards burning a hole in your wallet, now is a good time to circle [...]

While CRI has been shown to be a poor metric for LED color quality, Nichia has chosen to promote the LED performance based on the aggregate CRI Ra score and on the 16 individual color sample scores (90 or better) because of just how widely recognized the CRI metric has been. Optisolis has been initially offered as part of Nichia’s long-established 757 product family, but the technology will be spread across other types of LEDs in the near future. Nichia achieved the excellent color rendering by shifting the blue pump toward the violet region with warm white products using a 440-nm pump and cool-white products a 420-nm pump. The company stressed, however, that there is no UV energy in the SPD and that the LEDs would not degrade materials in museum lighting, which is one of the target applications for Optisolis.

Before joining the staff of Architectural Record, Kelly Beamon worked as a senior editor for This Old House and Interior Design, and as the managing editor of Surface. As the executive editor of HD magazine, she moderated talks on design trends for HDExpo, an annual hospitality design conference held in Las Vegas. She has also been quoted on design by the New York Times, ABC News, and USA Today and penned columns on American house styles and kitchen and bath trends. She has a B.A. in English from Chatham University in Pittsburgh and 18 years of architecture and design writing to her credit. She resides in Brooklyn with two children, two guinea pigs, and threadbare period original furnishings by George Nelson, Kazuhide Takahama, Charles and Ray Eames, and Gustav Stickley.

“I’ve used this specific light for decades. It is made out of paper and split bamboo and is lightweight and delicate. Therefore, I buy a replacement every ten years. This reminds me that as humans, we are fragile, and nature is more powerful than we are. Plus, I like to support the traditional craft economy and this family-run business. I love the fact that Noguchi took the craft of traditional paper lanterns and turned it into a contemporary light fixture as well as an affordable work of art. I’ll also give this as a gift to friends and family — it comes packaged in a beautiful black box.” —Jonathan Marvel, founder of Marvel Architects, New York

Stephen Ross, the seventy-seven-year-old billionaire property developer and the owner of the Miami Dolphins, has a winningly informal, old-school conversational style. On a recent morning in Manhattan, he spoke of the moment, several years ago, when he decided that the plaza of one of his projects, Hudson Yards—a Doha-like cluster of towers on Manhattan’s West Side—needed a magnificent object at its center. He recalled telling himself, “It has to be big. It has to be monumental.” He went on, “Then I said, ‘O.K. Who are the great sculptors?’ ” (Ross pronounced the word “sculptures.”) Before long, he met with Thomas Heatherwick, the acclaimed British designer of ingenious, if sometimes unworkable, things. Ross told me that there was a presentation, and that he was very impressed by Heatherwick’s “what do you call it—Television? Internet?” An adviser softly said, “PowerPoint?”

It’s not just reliability improvements that are coming to mid-power LEDs but improvement in color rendering, white point, and other factors. That light quality message was the focus of the Optisolis LED announced by Nichia in early 2018. The announcement proclaimed that the LEDs deliver “Ultra-High CRI” across all models.

Once you’ve got some friends, clicking their names on your friends list allows you to quickly open up a direct message feed with them, or request video and voice calls. You can add set up a group video or voice chat with multiple friends, even without a server.

Figure 2 depicts the response curve for the Z-200 for the maximum 3 second test. As shown in this figure, the 3-sigma detection limit is roughly 10 ppm, and the relative standard deviation (repeatability) is below 10% at 20ppm, which means 20 ± 2ppm.

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When you add a connector that constrains another relationship (like the coplanar relationship of the beams) it’s not a redundant way of reducing the “angle slop”, it’s its own thing entirely. Does it reduce angle slop? Maybe, but only coincidentally. That’s not what the added connector is for. The first connector constrains the beam angles relative to each other, the second connector constraints the connectors to a single plane.

LIBS offers analysis of lighter elements on a par with spark-OES technology, but unlike OES, is available in a handheld form factor.