2. The Concept Background
2015 2www.photosynergy.co.uk
The PSL lighting concept is
based on the theory of Total
Internal Reflection
demonstrated in 1870 by
John Tyndal
A bucket set-up to pour water
out of a spout and light was
directed into the water and
was seen to bend and follow
the line of the water.
The PSL fibre system flexibly
bends light and carries no
electrical power ONLY
LIGHT
3. LIGHTPATH - Egress Lighting 24x7
• Some safety applications for LIGHTPATH
• Subsea – diving both saturation and surface
air, lighting tool baskets and tether lines,
route into structures and salvage/wrecks
• Marine – deck obstacles, handrails, open
hatches, stairwells and maintenance in
confined spaces
• Helicopter internal lighting
2015 www.photosynergy.co.uk 3