Adjusting The Light Sources (106Z Lamp Housing Only) - Leica DM2700 M Instructions Manual

7.5 Adjusting the Light Sources
(106z Lamp Housing only)
Centering is only required when using the 106z
lamp housing.
• When a supply unit is used, it is turned on fi rst.
Caution!
Never look directly into the beam path!
Caution!
Light sources pose a potential irradiation risk
(glare, UV radiation, IR radiation).
For the 106z lamp housing, the direct arc image
(for gas discharge lamps) and its mirror image
are focused separately and adjusted to each
other.
• Move the fi lter system or refl ector into the light
path.
• Open the shutter and remove any diffusing
screens* from the light path.
• Put a piece of paper on the specimen stage
and roughly focus the surface with a dry ob-
jective of low to medium magnifi cation.
• Set the fi eld and aperture diaphragms roughly
at the center position.
• With a felt-tip or ball-point pen, make a mark-
ing at any position on the paper and slide it into
the small illuminated fi eld.
• Turn a vacant nosepiece position into the light
path or remove the objective.
The light source will then be imaged onto the pa-
per. While observing the light source, the lamp is
adjusted as follows.
Caution!
The lamp and the lamp housing may still be
hot.
Fig. 36 Lamp housing 106z
1 Lamp height adjustment
2,4 Mirror image height and side adjustment
3 Focusing the refl ector
5 Lamp side adjustment
6 Collector (focusing of the lamp image
5
2
3
4
7. Startup
1 6
41