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Light model combinations are available with one,
two or three lightheads providing high illumination
of the operating field at varying angles. Combina-
tions of vertical positioning and multiple rotational
capabilities allow the single, dual or triple lighthead
models virtually limitless positioning within a thir-
teen foot diameter area (triple lighthead models).
The fixtures are single point ceiling mounted with
aninnitelycontinuous360°rotationcapabilityat
the ceiling mount end of the radial support arm.
See figure 1. The balance mechanism which is
attached to the radial arm by a vertical support
tube, provides the lighthead an additional infinitely
continuous360°rotationpoint.Thebalancemech-
anism is an enclosed spring tension system. This
allows vertical movement of the lighthead while
maintaining the lighthead position without drifting.
The yoke provides additional infinitely continuous
rotation points for lighthead pitch and roll.
The Aurora II fixtures have a lighthead vertical
travelcapabilityof110°.
The adjustable focus mechanism which optimizes
the light output by superimposing all the light
beams into a single spot can be operated by non-
sterile personnel using the lighthead mounted
focus knob.
All of the lightheads also have a multi-function
center handle that is removable and sterilizable.
The handle allows focus control, lighthead position-
ing and intensity adjustment. This allows all final
adjustments or changes to be precisely controlled
by the surgeon. See figure 2.
STERILIZABLE
FOCUS/POSITIONING
HANDLE
NON-STERILE
SIDE FOCUS KNOB
INTENSITY CONTROL
Figure 2. Focus Adjustments
A button is positioned on the end of the handle to
provide intensity control of the entire fixture. All
of the lightheads connected to a wall control are
controlled by a single handle. Pressing the but-
ton and quickly releasing it will cause the intensity
control to cycle to the next lower position. Press-
ing the button again will cycle the intensity control
through all levels. When the lowest intensity is
reached, the control will next cycle to full intensity.
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