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Leica M-series User Manual 7
Safety Regulations (cont'd.)
Light sources: safety regulations
Protective measures of the manufacturer:
★ UV protection screen in front of the speci-
men plane prevents the user from looking
directly into the UV rays.
★ Dummy filter carriers in the free positions
of the rapid filter changer prevent direct UV
radiation from reaching the eyes.
★ UV filters are installed in the observation
beam paths to protect the eyes.
★ The stray-light protection on the lamp
housing prevents irradiation of the hands.
Warning
★ UV radiation could damage the eyes.
Therefore:
★ Never look into the light spot on the speci-
men plane without a UV protection screen.
★ Never look into the eyepieces if no excita-
tion filter is in the beam path.
★ Fill empty filter positions with dummy filter
carriers (e.g. M165 FC).
★ Do not select a white, strongly reflective
background for the specimen.
Supply unit
Always unplug the supply unit from the power
supply:
★ When installing and disassembling the
lamp housing
★ Before opening the lamp housing
★ When replacing the high-pressure mercury
lamp and other parts, such as the heat-
absorbing filter or the collector
★ During maintenance work on the supply
unit