Christie Roadster User Manual page 107

Roadster, Matrix WU, Mirage S+/HD/WU User Manual
020-100002-05 Rev. 1 (02-2010)
This value and slidebar represents the current brightness of your lamp,
INTENSITY –
decreasing over time when you are operating in
level. When you are operating in "
Power
original " " setting chosen and cannot be adjusted.
Intensity
NOTE: The number shown for "intensity" is not the actual lumen output, but rather
a correlated value only—1246 may represent 3500 lumens, for example.
To use " mode, judge by eye or meter and set
Intensity"
the level as desired for your application. Over time, the
projector will automatically increase the power
supplied to the lamp as needed to maintain the chosen intensity as closely as possible.
This mode is known as "Brightness Tracking" or "LiteLOC™".
HOW LONG CAN I MAINTAIN BRIGHTNESS?
setting until the required power reaches the maximum rating for the lamp. The lower
the setting, the longer it will take to reach this threshold, and the longer you can
maintain the desired brightness. Keep in mind that once the lamp power reaches its
maximum wattage (see "
point, the lamp will gradually begin to dim as usual, even though your original
" " value will still appear in the menu. To resume accurate tracking, reduce
Intensity
the intensity setting so that the resulting "
lower the intensity, the longer it can be maintained.
For example, a 1000-watt lamp can be driven at no more than 1000 watts. To produce
desired brightness at the screen, a new lamp would likely need less than this
maximum rating—perhaps 812 watts (example only). Over time, however, the lamp
will require more and more current in order to generate the desired light, until
eventually the lamp wattage reaches its 1000-watt maximum and the lamp power
automatically levels off. At this point, the tracking function terminates (i.e., the
power level stabilizes) and the lamp will begin to dim normally. Either reduce your
" " setting or replace the lamp.
Intensity
Do not lower the "
Intensity"
minimum—the intensity setting will be inaccurate and cannot be maintained. For best
results in achieving uniform intensity amongst tiled images, choose an
setting that enables all lamps to operate at less than the maximum number of watts
available in your projector but high enough to keep the corresponding lamp power
above its minimum. See "
NOTES: 1) Lamps become more stable over time, thus a specific intensity is more
easily maintained as the lamp ages. 2) Intensity can be set only if the lamp is in
"Intensity" mode 3) Intensity cannot exceed the output of Max Brightness mode.
- This option is also available under the Advanced Image
OPTICAL APERTURE
Settings menu. Refer to 3.6 – Adjusting the Image for details.
This read-only option lists the lamps most
LAMP HISTORY -
recently installed and recorded in the projector. Lamp History
automatically updates whenever you record a new lamp serial
number—the new lamp is added to the bottom of the list.
Use to record the serial number for a newly
CHANGE LAMP
installed lamp:
Intensity
Software can maintain your
, above), this tracking is no longer possible. At this
Power"
Power"
so much that the corresponding
, above.
Power"
mode or at a specific
Max Brightness
" mode, this value remains at the
value is less than its maximum—the
value reaches its
Power
Intensity
Operation
Intensity
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