LIGHT OUTPUT CHARACTERISTICS OF SPRING HEALTH LED
BASED CURING LAMPS
By Noureddine Melikechi
Professor of Physics
Delaware State University
nmelikechi@gmail.com
Phone: 302 943 7213
Submitted to
Spring Heath Products, PA
August 2011
Experimental Setup
 The power was measured with the Coherent Lab_Max Top Laser/Energer
meter.
 The Diameter of the power head was smaller compared to the beamdiameter
of the LED.
 The Data was fitter with the Erf function to find the beam waist.
 We noticed that the beam waist did not change significantly for the position
of the power meter varying from 0mm to 4mm.
 Lens_ 1: Are measruement without the plastic lens.
 Lens _2: are measurements with the plastic lens.
 Note: Lens_1_Knife_Edge_n (n refers to the distance in mm between the
light source and the detector.)
Figure: Experimental set up for the charaterizations of light sources
LENS_1 (no plastic lens)
LENS_2 (Plastic lens)
Spectrum