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Innovative Photonics
The unit uses a new high efficiency current controller which controls the current through the lamp
filament, as opposed to the voltage drop across the lamp. This control method provides much
longer lamp lifetimes, and virtually eliminates unexpected lamp burnout.
The current controller is regulated by an internal optical photometer that samples the light emitted
from the lamp, and makes micro adjustments to the current controller every few seconds. This
provides excellent photonic stability over the entire lifetime of the lamp. The photometer is
temperature compensated to ensure stable and repeatable performance over a wide operating
temperature range.
An embedded microcontroller controls all functions, including the light feedback system. This is
the first full digital light feedback system – there are no longer any analog feedback loops to adjust
or change with time. The microcontroller also makes precision real time measurements to assess
the lifetime and/or operating condition of the lamp. As the lamps ages, sophisticated algorithms are
able to accurately report the status of the lamp, and when it needs to be replaced.
This unit uses an EKE lamp (exact spectral output of which varies depending on the lamp option)
which has been specifically designed to provide stable spectral envelope over its entire lifetime –
which is about 500 hours. There are two indicators for the lamp lifetime. The first is a front panel
tri-color LED. When the lamp is new and in good condition, the LED on the front panel will
remain GREEN. As the lamp ages, it will eventually begin to show signs of aging. At about 250-
350 hours the lamp will begin to exhibit measureable signs of aging and the LED will turn
YELLOW. From around 450-600 hours of operations the lamp will begin to degrade further, and
the LED will turn RED. After 600-700 hours the lamps may exhibit erratic behavior and the LED
will flash RED.
Similarly, the analog lifetime signal provides a real time measure of the lamp condition. This
continuous signal provides a better indicator gauge than the LED "idiot light" but is controlled by
the same microprocessor algorithm. When the lamp is new the signal will generally be at or below
1.5 Volts. Once the signal rises above 3VDC the front panel indicator LED will be turned to
YELLOW. Once the signal rises about 4VDC the front panel indicator LED will be turned to
RED. Once the signal rises about 5VDC the front panel indicator LED will be turned to
FLASHING RED.
Once the LED is RED, or FLASHING RED, or the Analog Signal has reached 5VDC, the user may
want to change the lamp to ensure that the unit will still continue to meet the optical output
specifications. To replace the lamp, remove the cover screws and take the cover off the unit. Eject
the old lamp and put a new lamp in the lamp bracket, assuring that the lamp is fully seated in the
bracket and the electrical socket. Replace the cover and the screws, and then power up the unit.
Depress the "CAL" button on the rear of the unit. The microcontroller will perform a number of
automated functions on the new lamp, including a characterization and a calibration. This process
will begin after a 90 minute "burn-in" of the new lamp, while the LED will flash YELLOW.
Revision 2 09/01/16
Illumination
Technologies, Inc.
Illumination Technologies, Inc.
102 Route 5 West, Building 2, Elbridge, NY 13060 USA
www.illuminationtech.com
28
Owner's Manual
Description
Page 5 of
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