a
• When Constant Brightness is set to On, you cannot change
the settings for Light Source Mode and Brightness Level.
When you want to change these settings, set Constant
Brightness to Off.
• When Constant Brightness is set to Off, the value for
Brightness Level changes depending on the current status of
the light source.
• There may be a margin of error in the Brightness Level.
• When the projector is used continuously for more than 24
hours, or when direct shutdown is used regularly, set Light
Source Calibration using the scheduling function. If this is
not set, the Constant Brightness function does not work.
s "Scheduling Function" p.116
Guide to Estimated Remains
When Constant Brightness is set to On, the Estimated Remains is
displayed. Estimated Remains indicates the amount of time for which
constant brightness can be maintained.
Display Level Estimated Remains
10,000 hours or more
8,000 to 9,999 hours
6,000 to 7,999 hours
4,000 to 5,999 hours
2,000 to 3,999 hours
0 to 1,999 hours
a
The time displayed on the screen is just a guide. 30,000 hours or more
is displayed in units of 10,000; 2,000 to 29,999 hours is displayed in
units of 1,000; and up to 1,999 hours is displayed in units of 100.
Relationship between Brightness Level and usage time
The following shows the relationship between Brightness Level and usage
time.
Make settings according to your desired usage time and the brightness of
the projected image.
When Constant Brightness is set to Off
: Brightness Level
: Approximate time until light source brightness is reduced by half
AB
Illustration
100% 20,000 hours
90% 21,000 hours
80% 24,000 hours
70% 30,000 hours
60% 37,000 hours
50% 47,000 hours
Adjusting Projected Images
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