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  • Predicting Maximum Field Service Temperatures From Solar Reflectance Measurements of Vinyl
    A number of vinyl building product manufacturers are familiar with The Standard Test Method for Predicting Heat Buildup in PVC Building Products according to ASTM D 4803 which utilizes an insulated box to house a specimen irradiated by an IR heat lamp. Many vinyl producers may not be familiar
  • Predicting Maximum Field Service Temperatures From Solar Reflectance Measurements of Vinyl
    A number of vinyl building product manufacturers are familiar with The Standard Test Method for Predicting Heat Buildup in PVC Building Products according to ASTM D 4803 which utilizes an insulated box to house a specimen irradiated by an IR heat lamp. Many vinyl producers may not be familiar
  • A bright idea for the operating room
    aluminum reflectors. According to Jyrki Nieminen, R &D head for Merivaara, "The most important concern was the excessive heat generated by the lamp's metal reflector." Too much heat makes patients uncomfortable and also raises operating and exam room temperatures, affecting clinical staff. In addition
  • Teccor Thyristors for Ignition of Fluorescent Lamps (.pdf)
    is a U-shaped bimetallic strip and a fixed post. When the line input current is applied, the voltage between the bimetallic strip and the fixed post is high enough to ionize and produce a glow similar to a standard neon lamp. The heat from the ionization causes the bimetallic strip to move and make
  • Dimming AC Incandescent Lamps Using A PIC10F200
    One of the earliest circuits in home electronics is the venerable incandescent AC lamp dimmer. It is also one of the most challenging circuits to get right. In this technical brief we will examine how using a microcontroller can both simplify the circuit and make it efficient. Early dimmers were
  • Low-power backlighting
    dashes are also comparably simple. EL lamps create uniform lighting for both silhouette and traditional instrument clusters though they are less than 0.25-mm thick (about half the diameter of the lead in a typical mechanical pencil). They are flexible enough to fit into a medley of configurations
  • Indicators
    Incandescent miniature and subminiature lamps are used in applications requiring high brightness, a wide viewing angle, and a variety of display colors. Incandescent lamps generally provide between 6 and 50,000 mcd (millicandellas), while LEDs generally produce between 1 and 40 mcd. Neon lamps
  • Green Technology: How to power an energy-efficient light
    the tube gas by applying a high voltage to heat the filaments. The ballast also serves as a current limiter when the lamp is on. The problem with old-style ballasts was one of both bulk and inefficiency. CFLs only took off with the advent of electronic-ballast circuits that were both economical
  • Flexible circuit helps shed light on optical inspection line
    The L2 Illuminator employed in an optical inspection system provides uniform, high-intensity light. The Illuminator is used with equipment that inspects IC carriers and lead frames. Careful placement of LEDS on lamp side panels provides uniform, highintensity lighting from all internal surfaces
  • Infrared Basics
    required rapid heating rates, precise control, and the ability to turn the heat on and off instantly. The same benefits also apply in plastics processing, as noted below: Quartz halogen lamps are similar to the incandescent lamps used in everyday lighting applications. The similarities include

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