Chapter 3 Basic Operations — Switching on/off the projector
ENGLISH - 77
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-RQ25K, PT-RZ24K
[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
r PT-RQ18K, PT-RZ17K
[LIGHT OUTPUT] (%) Brightness (lm) Estimated runtime
*1
(hours)
100.0 % 16 000 39 300
90.0 % 14 400 42 200
80.0 % 12 800 45 700
70.0 % 11 200 49 700
60.0 % 9 600 54 500
50.0 % 8 000 60 200
*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)
60 20056 02051 84047 66043 48039 300
40.0
8 000
50.0
60.0
[LIGHT OUTPUT] (%)
Brightness (lm)
70.0
80.0
90.0
100.0
16 000
Note
f Under inuence of characteristics of each light source, conditions of use, installation environment, etc., the runtime may be shorter than the
estimation.
f 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 conrmed in the [STATUS] screen. Refer to the [PROJECTOR SETUP] menu → [STATUS] for details.
f After completed the initial setting, the wider the combination of luminance and runtime becomes by setting the [PROJECTOR SETUP]
menu → [BRIGHTNESS CONTROL] → [BRIGHTNESS CONTROL SETUP] → [CONSTANT MODE] to [AUTO] or [PC]. Refer to the
[PROJECTOR SETUP] menu → [BRIGHTNESS CONTROL] for details.