Patent ID: 6830360
Filing Date: 2004-12-14
Classification: F21L,F21Y,Y10S

Abstract:
An illumination device, comprising, in combination:a) an elongated portable carrier including a housing and a longitudinally elongated window, b) multiple LEDs carried to emit light toward and through the window, c) and circuitry associated with the housing to supply electrical power to the LEDs, said circuitry incorporating resistor, capacitor and diode elements to reduce AC input voltage to a level or levels for supplying voltage to the LEDs, d) said LEDs being located in two substantially parallel rows, the longitudinal spacing between adjacent LEDs in each row being at least about 1.75 centimeters, there being between 13 and 18 LEDs in each row, said LEDs electrically connected in series sequence, e) an elongated substrate supporting the LEDs, the LEDs having terminals engaging edges of spaced planar electrical conductors on the substrate, the carrier being hollow and the substrate and LEDs located within the carrier, the substrate having edge mounting to the carrier, f) and circuitry connected to the LEDs, said circuitry including a first branch having a first resistor connected in series with said diode elements having parallel connected first diodes which are reversely poled, said circuitry including a second branch having a second resistor connected in series with said diode elements having parallel connected second diodes which are reversely poled, the first branch operatively connected with one end of said sequence of LEDs, the second branch operatively connected with the opposite end of said sequence of LEDs via a voltage regulator.