DIAMETER (mm) 2
LAMP VOLTAGE VL(Vrms) 740
LENGTH (mm) 293
LAMP WATTS (@5mArms) 3.7
STARTING VOLTAGE (Typ.Vrms) 1700
INTENSITY (Cd./m2) 38,000
Life Hrs. (Typ.) 20,000
The tube is then sealed at both ends, each of which also contains a gettered, mercury-dispensing electrode and an iron-nickel cathode connected to copper sheathed iron alloy leads. Lamps normally contain 2 to 10 milligrams of mercury, and a mixture of gasses such as argon and neon.
When high voltage is applied to the electrodes, ultraviolet energy at 254hm is produced as the mercury and the internal gasses are ionized. The resulting ultraviolet energy from, the mercury discharge stimulates the phosphor lining inside the Iamp, producing visible light out-put in the 380 to 780nm range, also known as the photopic region.
The most widely used CCFL lamps utilize phosphors specially
compounded for good color rendering in illuminating liquid crystal displays (LCDs).
They are referred to as triphosphor RGB lamps, producing bright white light, utilizing a
combination of red, green and blue phosphors.
Light output for Iamp phosphors is measured in degrees Kelvin (OK). A typical RGB fluorescent Iamp is rated at 5600 degrees Kelvin, which approximates daylight. The cooler blue the lamp color the higher Kelvin rating. Inversely a lower Kelvin rating produces a warmer the lamp color Lower Kelvin ratings have a warm (red/yellow) appearance. Higher Kelvin ratings are typically blue-white.