Lighting

Choosing a Light and Color Measurement System for LEDs

LED-based lighting and display systems are becoming increasingly popular due to their low cost, flexibility, and efficiency. Measuring the light and color output of LEDs is, therefore, becoming more important as their performance is compared to and evaluated against traditional technologies. In addition, inherent performance variations from device to device must be understood and controlled.

Posted in: Application Briefs, Imaging, LEDs, Lighting, Photonics, Measurements, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Performance tests
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Researchers Craft New Material That Could Improve LED Screens

Researchers working at the Ultrafast Laser Lab at the University of Kansas successfully created a new bilayer material, with each layer measuring less than one nanometer in thickness. The new material, that someday could lead to more efficient and versatile light emission, was made by combining atomically thin layers of molybdenum disulfide and rhenium disulfide.

Posted in: News, ptb catchall, LEDs, Powering & Controlling LEDs, Materials, Optical Components, Optics, Photonics
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Using UVC LEDs to Reduce the Spread of Healthcare Acquired Infections (HAIs)

According to FDA, contact with infected objects and medical devices is a leading cause of healthcare associated infections (HAIs). Reducing HAIs by better understanding the effectiveness of antimicrobials, sterilization, and reprocessing of medical devices is one of the agency’s regulatory science priorities for 2017.

Posted in: Webinars, On-Demand Webinars, LEDs, Medical
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Truly Automated Light and Color Measurement for Tell-Tales and Indicators

In Conjunction with SAE

Evaluating the accuracy of light and color across instrument clusters is a challenge compounded by several factors. The number of indicators, the varying location of symbols, and the range of colors on an automotive display prove complex for automated inspection systems and human inspectors alike. This 30-minute Webinar explores Auto-POI, the latest technology for light and color measurement of multi-point inspection areas using an Imaging Colorimeter, enabling automated evaluation across entire instrument clusters.

Posted in: On-Demand Webinars, Lighting
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LED Lighting Enables Better Sleep and Wake Cycles

LED technology helps astronauts sleep and keeps gardens growing.

Because NASA is planning for future visits to distant locations like Mars, the agency is researching how to grow plants in space. Live plants on space missions provide a nutritious food source and contribute to cleaning air in a spacecraft. When looking at how to best grow plants on space missions, NASA looked at high-intensity halogen lights, special UV bulbs, and light-emitting diodes (LEDs). By incorporating different LEDs on a single circuit board, the light can be changed and controlled to include or omit specific wavelengths of light, and at different times.

Posted in: Articles, Spinoff, Aerospace, LEDs, Lighting, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Biological sciences, Human factors, Medical, health, and wellness, Spacecraft
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940nm VCSEL Array

Princeton Optronics (Mercerville, NJ) has introduced high-power (8W) 940nm VCSEL arrays for illumination applications. These arrays have an efficiency of >45%, a spectral width of approximately 1nm and a circular beam with divergence of 18 degrees (full angle). The array’s dimensions are 2x2mm and it is normally mounted on submounts.

Posted in: Products, Lighting
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Open Frame, XY Linear-Motor Stage

Aerotech’s (Pittsburgh, PA) PlanarDLA integrated, open-frame stages have high dynamics and exceptional geometric performance in a low-profile package. These stages are essential for applications ranging from two-sided LED wafer processing where high-dynamics and micrometer-level straightness are required, to quasi-static optical metrology where high-accuracy and precise geometric performance are necessary.

Posted in: Products, LEDs, Lighting
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Intelligent Room Controller

Hubbell Building Automation (Austin, TX) has launched an intelligent lighting control that simplifies installation with auto-configuration. The NXTM Room Controller integrates automatic and manual control of lighting. Auto-configuration provides an easy and affordable way to meet energy codes, including California's Title 24 and ASHRAE 90.1. No network or software is required to set up the unit. Users benefit from intuitive energy-saving control over the lighting in their space.

Posted in: Products, Lighting
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277 V Thermistor

Ametherm (Carson City, NV) recently released a new UL-approved circuit protection thermistor that offers a 277 V rating optimized for applications including LED lighting and ballasts, power factor correction (PFC) circuits, and inrush current control in uninterruptible power supplies (UPS) with ratings under 500 W.

Posted in: Products, LEDs, Lighting
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Compact Range LEDs

Mouser Electronics, Inc. (Mansfield, TX) is now stocking LUXEON CoB Compact Range LEDs from Lumileds (San Jose, CA). These LEDs offer high flux densities in a very small light emitting surface (LES), which provides good center beam candle power (CBCP). The Lumileds LUXEON CoB Compact Range LEDs feature a single 6.5mm optical LES that provides high flux densities and high efficacy. Industry-leading thermal resistance allows for smaller heat sinks, and the assembly’s ceramic substrate offers excellent protection in high-potential (HiPot) testing.

Posted in: Products, LEDs, Lighting
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