Posts tagged as Lighting Technical

Partial flux – measurement reliability of lensed LEDs

  Most LED manufacturers use units of luminous intensity (cd) for the measurement and classification of LED brightness. This procedure is reliable and reproducible for numerous LED types, but is insufficient for LEDs with narrow emission angle characteristics. This article describes the procedures for measuring luminous intensity, partial flux and luminous flux, along with the […]

LED: what the end-user should know

  It is expected that LED lighting will account for more than half the global lighting market by 2017, making it essential for the end-user to better understand this technology. Although the cost of LED products is currently higher than regular lighting systems, the demand for LED technology is growing exponentially, which will inevitably result […]

Using daylight harvesting for sustainability

  The commonsense science of daylight harvesting uses sunlight to create spaces which are comfortable, energy-efficient, sustainable and code compliant. Daylighting is a relatively new term for an ancient practice. In the millennia before the introduction of electricity, buildings had to rely on available daylight to illuminate interior spaces. More recently, daylight harvesting became almost […]

General factors to consider in lighting design

  by Thomas Bond, ACDC Dynamics Lighting design for optimal light levels factors in location: the required illumination levels, working plane, lamp type, lumen output, mounting height and the required levels of uniformity. Download PDF