Chapter 4 Settings — [PROJECTOR SETUP] menu
ENGLISH - 181
f The uniformity of the brightness between multiple displays can be maintained by adjusting [LIGHT OUTPUT] for each projector when
structuring a multi-display screen by combining the projected images from multiple projectors.
Relationship between brightness and runtime
The projector can be operated with arbitrary brightness and runtime by combining the settings of [MAX LIGHT
OUTPUT LEVEL], [LIGHT OUTPUT], and [CONSTANT MODE] in [BRIGHTNESS CONTROL SETUP].
The relationship between the [LIGHT OUTPUT] setting, brightness, and the estimated runtime is as follows. Make
the setting depending on the desired brightness of the projected image and runtime.
The values of the brightness and the runtime are just an estimate, and the graph indicating the relationship is just
an example. Also, these do not indicate the warranty period.
r PT-RQ25K, PT-RZ24K
f When [CONSTANT MODE] is set to [OFF]
[LIGHT OUTPUT] (%) Brightness (lm) Estimated runtime
*1
(hours)
100.0 % 20 000 29 100
90.0 % 18 000 31 600
80.0 % 16 000 34 500
70.0 % 14 000 38 100
60.0 % 12 000 42 400
50.0 % 10 000 47 800
*1 Estimated runtime is the time until the brightness decreases to approximately half of the time of delivery when the projector is used with the
[PICTURE] menu → [DYNAMIC CONTRAST] set to [3] and under environment of 0.15 mg/m
3
dust.
Estimated runtime (hours)
47 80044 06040 32036 58032 84029 100
40.0
10 000
50.0
60.0
[LIGHT OUTPUT] (%)
Brightness (lm)
70.0
80.0
90.0
100.0
20 000
f When [CONSTANT MODE] is set to [AUTO] or [PC]
[LIGHT OUTPUT] (%) Brightness (lm) Estimated runtime
*1
(hours)
80.0 % 16 000 14 400
70.0 % 14 000 24 700
60.0 % 12 000 36 500
50.0 % 10 000 50 100
40.0 % 8 000 66 300
30.0 % 6 000 86 500
*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.
20.0
Estimated runtime (hours)
Image of brightness change over time
86 50072 08057 66043 240
Estimated runtime
14 400
Start of use
22 820
Hours
40.0
6 000
50.0
60.0
16 000
[LIGHT OUTPUT] (%)
Brightness (lm)
70.0
80.0
90.0
30.0
100.0
Brightness
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