15.6.1 A satisfactory level of lighting should
be available to enable the operating personnel to adequately perform
all their tasks both at sea and in port, by day and night. There should
be only a limited reduction in the illumination of essential instruments
and controls under likely system fault conditions.
15.6.2 Care should be taken to avoid glare and
stray image reflection in the operating area environment. High contrast
in brightness between work area and surroundings should be avoided.
Non-reflective or matt surfaces should be used to reduce indirect
glare to a minimum.
15.6.3 A satisfactory degree of flexibility within
the lighting system should be available to enable the operating personnel
to adjust the lighting intensity and direction as required in the
different areas of the operating compartment and at individual instruments
and controls.
15.6.4 Red light should be used to maintain dark
adaptation whenever possible in areas or on items of equipment requiring
illumination in the operational mode, other than chart table.
15.6.5 During hours of darkness, it should be
possible to discern displayed information and control devices.
15.6.6 Reference is made to additional requirements
on lighting in 12.7 and 12.8.