Chapter 4
Settings — [PROJECTOR SETUP] menu
134 - ENGLISH
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When [CONSTANT MODE] is set to [AUTO] or [PC]
[LIGHT OUTPUT] (%)
Brightness (lm)
Estimated runtime
*1
(hours)
53.3
3 200
20 000
48.3
2 900
24 000
45.0
2 700
27 000
41.7
2 500
31 000
38.3
2 300
35 000
33.3
2 000
40 000
*1
Estimated runtime is the time the brightness is maintained constant when the projector is used with the [PICTURE] menu
→
[DYNAMIC
CONTRAST] set to [3] and under environment of 0.15 mg/m
3
dust. The brightness will gradually decrease after exceeding this time.
[LIGHT OUTP
UT]
(%)
Brightness (lm
)
Image of brightness change over time
Estimated runtime
Start of use
Hours
Brightness
Estimated runtime (hours)
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
2 000
3 200
20 000
24 000
28 000
32 000
36 000
40 000
6 000
Note
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The runtime may be shorter than the estimation due to the influence of characteristics of each light source, conditions of use, installation
environment, etc.
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If the consolidated runtime of the projector exceeds 20 000 hours, replacement of the components inside the projector may be required. The
consolidated runtime can be confirmed in the
[STATUS]
screen. Refer to the [PROJECTOR SETUP] menu
→
[STATUS] for details.
[LIGHT OUTPUT]
Adjust the brightness of light source.
The setting is reflected when it is already set with “Initial setting (operation setting)” (
x
page 59) in the
[INITIAL
SETTING]
screen or with the [PROJECTOR SETUP] menu
→
[OPERATION SETTING]. The [LIGHT OUTPUT]
setting is synchronized with the [PROJECTOR SETUP] menu
→
[OPERATION SETTING]
→
[LIGHT OUTPUT].
The most recent setting is reflected in both items.
1) Press
as
to select [LIGHT OUTPUT].
2) Press
qw
to adjust.
Operation
Adjustment
Range of adjustment
Brightness
Runtime (estimate)
Press
w
.
The screen becomes brighter.
The runtime becomes shorter.
8.0 % - 100.0 %
Press
q
.
The screen becomes darker.
The runtime becomes longer.
Note
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[LIGHT OUTPUT] cannot be adjusted if [OPERATING MODE] is set to [LONG LIFE1], [LONG LIFE2] or [LONG LIFE3] and the [PROJECTOR
SETUP] menu → [BRIGHTNESS CONTROL] → [BRIGHTNESS CONTROL SETUP] → [CONSTANT MODE] is set to [AUTO] or [PC].
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In such a case when configuring multiple screens with multiple projectors, uniformity of brightness between multiple screens can be obtained
by adjusting [LIGHT OUTPUT].
[BRIGHTNESS CONTROL]
The projector is equipped with a brightness sensor to measure brightness and color of the light source, and
corrects brightness and white balance of the projected image according to the changes in brightness and color of
the light source.
By using this function, in such a condition that multiple screens are configured using multiple projectors, you can
reduce changes in overall brightness and white balance of the multiple screens due to aging of the light source
and suppress variation in brightness and white balance to preserve uniformity.
Set the administrator accounts (user name and password) of all linked projectors to the same when performing
brightness control of multiple projectors in synchronization.
