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Chapter 3 Basic Operations — Switching on/off the projector
Relationship between brightness and runtime
The projector can be operated with arbitrary brightness and runtime by setting [LIGHT OUTPUT] to desired
setting.
The relationship between the [LIGHT OUTPUT] setting, brightness, and the estimated runtime is as follows. Make
the initial setting (operation 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‑REQ12
[LIGHT OUTPUT] (%)
100
90
80
70
60
50
*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
r PT‑REQ10
[LIGHT OUTPUT] (%)
100
90
80
70
60
50
*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
Brightness (lm)
12 000
10 800
9 600
8 400
7 200
6 000
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20 000
23 040
26 080
Estimated runtime (hours)
Brightness (lm)
10 000
9 000
8 000
7 000
6 000
5 000
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20 000
23 060
26 120
Estimated runtime (hours)
dust.
3
12 000
6 000
29 120
32 160
35 200
dust.
3
10 000
5 000
29 180
32 240
35 300
Estimated runtime
(hours)
*1
20 000
21 500
24 000
27 000
30 700
35 200
Estimated runtime
(hours)
*1
20 000
21 400
24 000
27 100
30 700
35 300
ENGLISH - 73
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