LED + SSL

LED + SSL, Research

Running IR LEDs In Reverse For Active Cooling

The December issue of designing lighting (dl) magazine has an interesting story about recent research into running infrared (IR) LEDs in reverse polarity to create active cooling. One caveat for this approach to work is that the object to be cooled has to be incredibly close to the IR LED — less than 1 wavelength’s [...]

LED + SSL, Products + Technology

The Status Of Quantum-Dot LEDs

Quantum-dot LEDs (QD-LEDs) are based on quantum dots (QDs), semiconductor particles just a few nanometers in size. Because of their extremely small size, their behaviour is governed by quantum mechanics. By ‘exciting’ quantum dots with electricity or driving radiation, they can be induced to emit light, the color of which is determined by the size [...]

LED + SSL, Research

A Look At The Color-Mixed White LED Future

In February 2022, the US DOE released its 2022 SSL Research & Development Opportunities report. While the report covers many promising directions for SSL R&D, one of the most significant evolutions predicted for LED light sources is the shift from phosphor-converted white LEDs (PC-LED) to color-mixed white LEDs (CM-LED).

LED + SSL, Light + Health

Two DOE Reports Characterize Current UV LEDs

The U.S. Department of Energy has released two reports which characterize the current state and viability of commercial ultraviolet (UV) LED products.

LED + SSL, Products + Technology

Cree LED Was Colorful At LightFair

David enjoyed a product demo from Cree LED at LightFair. Their booth emphasized their latest color LEDs, as well as their RGBW packages.

LED + SSL, Products + Technology

Product Monday: LumenPulse Launches Mix-At-Source Color-Changing Technology

Lumenpulse has introduced a new proprietary technology, Opticolor, to its color-changing projector products portfolio. The patent-pending Opticolor technology mixes color at the source, at the LED package level, within the LED optic, allowing for ultra near-field color blending, exceptional quality of light, as well as unrivaled color consistency and uniformity.

LED + SSL, Products + Technology

Product Monday: New Category Of LED Filament Lamps For HID Replacement

A new category of HID replacement lamps has arrived that are definitely not “corn cobs.” Their high lumen output LED filament lamps in traditional HID lamp form factors. I’ve found wattages as high as 42W (LED) that claim to replace up to 175W Metal Halide or HPS system watts (HID lamp + ballast), providing up to 75% energy savings.

LED + SSL, Lighting Industry

Massachusetts LED Study Projects High C&I LED Adoption Rates

Last year, an evaluation report by DNV was published about Massachusetts’ commercial & industrial lighting rebate programs. The report projected some LED adoption rates significantly higher than DOE’s predictions for the US, as a whole.

LED + SSL, Research

LRC Proposes Two Metrics To Predict LED Product Life

Arguably, the biggest gap in LED metrics is a product lifetime metric and test procedure. Currently, the industry is rife with fraudulent emitter life claims used as LED system product life claims (lamps, luminaires, and engines).

Education + Resources, LED + SSL

DOE Publishes Pair Of Reports About SSL Manufacturing And R&D Opportunities

The U.S. Department of Energy (DOE) Building Technologies Office (BTO), within the Office of Energy Efficiency and Renewable Energy (EERE), has published two new reports, 2022 DOE SSL Manufacturing Status & Opportunities and  Solid-State Lighting R&D Opportunities.

Events

LEDucation 2023
LightFair 2023
IALD Enlighten Europe
Lightovation – Dallas Market Center
2023 IES Annual Conference
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