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6
The
Technologies
F
igure6.1 shows all existing light sources and commercial lamps, which fall
into three main technology families as introduced in the previous chapters:
incandescent, discharge (plasma), and solid-state sources. Before opening the dis-
cussion on application, it is important to lter the various types of light sources as
those with the greatest availability and circulation in the market can provide real-
istic and easy options for the readers. For this reason, two categorizations have
been developed: primary (proposed for various applications) and secondary tech-
nologies (not included in the proposals). This chapter will b ...