Technical data

60 Description
G-30-1682-en OPMI® Lumera® T Issue 4.0
Printed on 02. 02. 2009
Illumination system
With red reflex illumination (stereo coaxial illumination) and surrounding
field illumination, the illumination system of the surgical microscope has
been specially tailored to the requirements of ophthalmic applications.
The illumination options provide very effective illumination of the field of
view and optimum visualization of the red reflex.
To protect the patient's eye, the illumination system is equipped with a
retina protection device and a blue barrier filter (retina protection filter.
The retinal protection device covers the patient's pupil and prevents light
from entering the patient's eye. It is integrated in the surgical microscope
and can be swung into the beam path when the red reflex is not needed.
The blue barrier filter (retina protection filter) reduces the retinal exposure
of the patient's and surgeon's eyes and permits the radiation exposure
time to be increased by factor 3. It can be swung into the beam path of the
light source in the suspension system.
The light is supplied by a light guide which directs the light from the light
source in the suspension system to the surgical microscope. To switch
the light source and the illumination systems on and off and to control their
brightness, you can use both the foot control panel and the control panel
of the suspension system.
Surrounding field illumination
The surrounding field illumination is integrated in the surgical microscope
and provides an optimally illuminated field of view with superb detail rec-
ognition. The brightness is controlled via the foot control panel or the sus-
pension system. In addition, the intensity of the surrounding field illumina-
tion can be separately reduced or completely deactivated using knob (1)
on the surgical microscope.
Red reflex illumination
The red reflex illumination (stereo coaxial illumination) is integrated in the
surgical microscope and provides an optimally visible red reflex. For infor-
mation on how to ensure optimum red reflex visualization, please see
page 172.