LED light
source, a feature in its outgoing light with a clear direction and cast
light beam angle characteristics, first of all outgoing flux would be
evenly dispersed in active light-emitting surface from different
angles, and further way from the package to limit its spread angle. The
traditional general scattering of light, such as ordinary incandescent
light bulbs and most fluorescent lamps, their light-emitting model
system to the four-proliferation, do not have any direction, therefore,
in the use of the past, light bulbs need well-designed reflector, Let
our back on emitted light, can also be reflected by the re-use, but by
reflection, will lose some of the energy, so the overall optical
efficiency of a light fall. If the LED as the light source, there is no
such problems, therefore the total efficiency will be better out the
light. |
