Environmental Engineering Reference
In-Depth Information
Fig. 5.13 First field installation of HSL system (2002)
5.7 Evolution and Commercialization of HSL
With the development of the first demonstration systems, it became possible for
people to directly experience the impact of the HSL technology. The results
were dramatic for the visitors to the ORNL HSL development laboratory. The
popularity of the concept gained momentum, and the design continued to
evolve. The drive to reduce component costs and system complexity led to
changes in the design itself. The 12-mm optical waveguides that were used in
the original prototypeswere awkward toworkwith, and their continued supply
from the preferred vendor was not guaranteed. Smaller PMMA fibers were in
prolific supply, and despite their limitations, they offered greater flexibility and
more designoptions. The glass primarymirror offered excellent optical quality,
