Reichert Univar User Manual page 50

Inserting the spectral lamps
➆
A spectral lamp can be installed in the opening
➇
after loosening the clamping screw and removing
➅
the blank . The mercury vapor high-pressure lamp
or the metal halogen short-arc lamp must be
removed from the lamp house.
Adjust the HBO 200W/4 or CS 200W/4 mercury-
vapor high-pressure lamp or the CSI 250W/1
metal halide short arc lamp:
⚫ Turn to the 10x objective, and insert the 10x
eyepieces into the observation tube.
⚫ Ignite the lamp, and with no specimen on the
stage, set the Univar to transmitted-light brightfield
microscopy with epi-illumination
⚫ Switch off the ground glass
⚫ Turn off automatic zoom lighting and adjust
handwheel for zoom to 63. Turn the collector knob of
the high-performance lamp counterclockwise until it
stops.
⚫ Redirect the microscopic optical path to view the
lamp arc on the projection screen. This is done
through height adjustment of the brightfield
condenser NA=0.90 or NA=1.30 with the condenser
knobs, or with coarse and fine adjustment of the
microscope. If there is no projection head, the
observation of the arc is made through the
eyepieces using the ocular body's neutral density
filters
⚫ There will be seen two arc images, fig.a: one
directly from the collector, the second from the
reflector built inside the lamp house
➈
⚫ The side adjustment screw on the lamp house
is used to set both images to the same size. Then
you can superimpose both images, as in Fig.b, by
➉
turning the two screws located on the front of the
lamp house. This way the arc will be located exactly
on the collector/reflector optical axis
D8