42
X-Cite
®
exacte
User Guide
035-00283 rev 3
11.2.11 Appearance and % output of light guides with bubbles relative to an LLG without
bubbles (100%).
Can a bubbled light guide recover?
11.2.12 Yes, light guides with small bubbles can sometimes recover. Disconnect the
light guide from the X-Cite
®
unit, and leave the light guide undisturbed on a shelf
for 1-2 weeks. For this to be effective, it is important to catch the bubble when it
is small.
When should light guides be replaced?
11.2.13 It is usually time to replace a light guide when:
Illumination is low and replacing the lamp does not improve brightness
Dark or uneven areas become visible in the field of view (a bubble is blocking
part of the light)
A section of the light guide becomes noticeably warmer than the rest of the guide
(a bubble is blocking transmission of light, forcing the light guide to absorb the
energy)
It is 2-3 years old OR has been in use for 4000-6000 hours (2-3 lamp changes)
100% 11.3% 5.2%
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