Electronics & Software

Lighting

Your destination for advances in Lighting. Design Engineers can access Technical Briefs, news in LEDs, OLEDs, Industrial Lighting, Power and Controlling LEDs. Discover new materials being introduced to improve lighting technologies.

Articles : Lighting
Differences Between Color Measurement Systems

Industry professionals and researchers engaged in the measurement and characterization of light sources are confronted by the age old question — should an instrument be utilized which employs spectroradiometric technology, or should tristimulus colorimetry technology based instruments be used to...

Articles : Lighting
Pursuing Reliable LEDs

Semiconductor-based light-emitting diode (LED) devices first appeared in the 1960s. Today, with the advances in materials, design, and manufacture of LED devices, we are seeing a wide spectrum of LEDs that are cheaper, more colorful, more efficient, more intense, and more reliable.

Briefs : Lighting
Photoluminescent Nanofibers for High-Efficiency Solid-State Lighting

Polymer nanofibers are nanoscale materials whose properties can be adjusted to provide desirable light management performance for high-efficiency solid-state lighting (SSL) luminaires. The polymeric nanofibers at the core of this project have diameters on the order of 100 to...

Briefs : Lighting
White Scattered Photon Extraction LEDs with Multi-Phosphor Layers

Early phosphor-converted white light-emitting diodes (LEDs) produced light with poor color characteristics in terms of color rendering index (CRI) and correlated color temperature (CCT). More recent LEDs have improved their color properties by combining multiple phosphors instead...

Application Briefs : Lighting
Airfield Lighting Heated Lens
Kopp Glass, Pittsburgh, PA

Incandescent lamps have been used as the primary light source in airfield lighting designs for many years. With recent environmental awareness of the general population and government regulation forcing greater energy efficiency, the lighting industry is rapidly transitioning to...

Application Briefs : Lighting
LED Wingtip Navigation Lighting
Honeywell, Phoenix, AZ
Airbus, Toulouse, France

Honeywell's light-emitting diode (LED) wingtip navigation lighting is now standard on new production Airbus A320 Family aircraft, comprising the A318, A319, A320, and A321. Honeywell’s LED wingtip navigation lighting lasts up to 40 times longer than...

Techs for License : Lighting
Extensible Light-Sensing LED Array

This technology involves the use of an extensible array of light-emitting diodes (LEDs) as a means of sensing incident light levels. The light-sensing LED array can be used to construct highly-dynamic backlights for displays and large-format synthetic aperture cameras.

Products : Lighting
Curvable LED Display

The F-6 curvable LED display from Pixled (Ostend, Belgium) features convex and concave curvability on both the horizontal and vertical planes. The F-6 can be shaped into a combination of both directions on both planes via integrated mechanics on each module. This can be achieved quickly and simply with no additional tools or...

Products : Lighting
LED Array

Cree, Inc. (Durham, NC) offers the XLamp® CXA20 LED array, which can enable a 60-watt A-lamp equivalent while consuming 11 watts. With a single, uniform optical source, compact 22mm x 22mm footprint, and two-screw attachment, the CXA20 array simplifies the manufacturing process for customers who require a single component in their...

Products : Lighting
Self-Retaining LED Mounting Spacers

Self-retaining, T-1 LED mounting spacers designed to assure uniform and perpendicular LED positioning while reducing assembly costs are available from Keystone Electronics Corp. (Astoria, NY). The spacers feature internal retention “teeth” which secure spacers onto LED leads, prior to assembly on PCBs. The...

Products : Lighting
Flexible LED Backlight

Lumex (Palatine, IL) introduces QuantumBrite flexible LED backlight technology. Customizable in any shape, size, and color, QuantumBrite flexible LED backlights are up to 88% thinner and can cost up to 80% less than standard LED backlight technology. The QuantumBrite flexible LED backlight is made out of an ultra-thin...

Products : Lighting
LCD-LED Driver Cross-Reference Guide

Endicott Research Group, Inc. (ERG) (Endicott, NY) has updated its online LCD-LED Driver Cross- Reference Guide. The online guide has datasheets on over 200 drivers supporting more than 150 OEM panels. It has been updated with ERG’s line of full-function drivers for LED-backlit industrial LCDs in the 5.7"...

Products : Lighting
Stacked Flat Type Light Guide Panel

At 6mm thick, the stacked flat type light guide panel from DynaScan Technology (Taipei, Taiwan) is an assembly of simple flat light guides, without any curvature or wedge angle, allowing over 90% light output efficiency. Due to the flat lightguide structure and front space providing an adjustable long...

Products : Energy
Power Factor Correction ICs

International Rectifier (El Segundo, CA) has introduced the IR115x family of µPFC™ power factor correction (PFC) ICs for a wide variety of AC-DC applications including lighting, LCD/PDP TV and game console Switch Mode Power Supplies (SMPS), fans, air conditioners, and uninterruptible power supplies (UPS) ranging...

News : Lighting
February's Issue of Lighting Technology Now Available

Check out the February issue of Lighting Technology for more new feature articles, videos, application stories, tech briefs, products, and more - all on the latest advances in LEDs and solid-state lighting.

Briefs : Energy
Nanoengineering for Solid-State Lighting

This report summarizes results from a three-year Laboratory Directed Research and Development (LDRD) project. The collaborative effort of researchers from Sandia National Laboratories and Rensselaer Polytechnic Institute was supported by Sandia’s National Institute for Nano-Engineering and focused on...

Products : Energy
Digital LED Driver ICs With Flicker-Free Dimming

iWatt, Inc. (Los Gatos, CA) released two primary-side-regulated, leading- and trailing-edge-dimmable, AC/DC Digital PWM Controllers targeting 100V/230VAC offline LED lighting applications.

News : Lighting
Flexible Ceramic Thin Film Nanogenerator
Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
Georgia Institute of Technology, Atlanta, Georgia

Keon Jae Lee, a professor in KAIST's Department of Materials Science and Engineering, and Zhong Lin Wang, a professor in the same department at Georgia...

Articles : Lighting
Lighting that Lasts: Building Solid-State Lighting Systems that Meet Industry Requirements

Solid-state lighting (SSL) is rapidly emerging as a major segment of the lighting fixture industry. What was once a simple electrical device has now been transformed into a complex electronic system. As light fixture manufacturers transition their existing...

Articles : Lighting
LED Optics — Shining a Light on Innovation

Solid-state lighting (SSL) has been identified as a technology innovation that can significantly impact the future of lighting solutions that will meet new U.S. energy efficiency standards for commercial, residential, and industrial applications. Progressive lighting original equipment manufacturers...

Briefs : Lighting
Nanoengineering for Solid-State Lighting
Sandia National Laboratories, Albuquerque, NM
Rensselaer Polytechnic Institute, Troy, NY

This report summarizes results from a three-year Laboratory Directed Research and Development (LDRD) project. The collaborative effort of researchers from Sandia National Laboratories and Rensselaer...

Application Briefs : Lighting
Warehouse Lighting-Related Energy Use Reduced by 87%

The lighting needs at the 460,000-square foot headquarters facility of Maines Paper and Food Service, Inc., a food distributor serving customers in 35 states, were recently re-evaulated. Like any large warehouse with 24x7 operations, this Conklin, NY facility bustles with activity across all...

Application Briefs : Lighting
Shopping Plaza Parking Lot Lighting-Retrofit

A Manchester, NH T.J.Maxx shopping plaza parking lot has been retrofitted with BetaLED luminaires. CBT Development of Greenland, NH was incurring high costs for parking lot maintenance from frequent lamp replacement in high pressure sodium (HPS) and metal halide (MH) fixtures. While poor power quality...

Techs for License : Lighting
Staggered InGaN Quantum Wells for Improved Active Media for LEDs

The given technology involves a novel method in achieving high-efficiency group IIInitride light-emitting diodes (LEDs) and laser diodes emitting in the visible regime (wavelengths between 420nm and 650nm) for use in solid-state lighting and medical applications.

Techs for License : Lighting
Novel OLED Architecture Simplifies Device Manufacturing

Researchers at the University of Minnesota have developed a novel organic light-emitting diode (OLED) architecture that reduces the number of individual layers in the device without sacrificing performance. With fewer layers, there are fewer deposition steps, leading to a simpler...

Products : Lighting
Hexagonal LED Chip

The Honeycomb™ LED Chip from Verticle, Inc. (Dublin, CA) is a vertically-structured LED chip developed for high-power LED applications. A wafer can yield 15% more hexagonal chips than square or rectangular chips of equivalent size. Hexagonal chips also aid in the current spreading, with the resulting higher light output than...

Products : Lighting
6-inch GaN Substrates

Sumitomo Electric Industries, Ltd. (Osaka, Japan) has developed 6-inch diameter GaN (gallium nitride) substrates to be used for white LEDs. The front face of the GaN substrates is a polarized c-plane. Polarity refers to a change in the electrical characteristics of a crystal caused by the preferred orientation of the...

Products : Lighting
Sapphire Crystal Grower

The K1 Kyropoulos Crystal Grower from Thermal Technology (Santa Rosa, CA) is suitable for LED substrate production. The 90 kg crystal grower features multiple, independently-controlled heating elements, weight sensors to determine the crystal's growth rate, and computerized control and data logging. Sapphire crystals have...

Products : Lighting
10-inch Sapphire Substrates

Monocrystal (Stavropol, Russia) has introduced ultra-large 10-inch c-plane epi-ready sapphire substrates. The LED industry continues shifting to larger diameter substrates as it strives to achieve higher cost savings and to increase production throughput of quality LED chips. Sapphire substrates are used for more than...

Products : Lighting
Projection Exposure System

The UX4-LEDs projection exposure system from USHIO America, Inc. (Cypress, CA) is for manufacturing LED chips. The system allows full-field exposure of 6-inch wafers while preventing wafer warpage or distortion — achieving a throughput enhancement of 300% compared with conventional stepper systems. It requires...