Setting up
22
- ENGLISH
Getting Started
Screen size and throw distance
Place the projector referring to the diagram on the right
and the figures of throwing distance. You can adjust
the display size.
L
Projection distance (cm)
SH
Height of the projection area (m)
SW
Width of the projection area (m)
SD
Diagonal length of the projection area (m)
A
Height from bottom of projector to bottom
of screen (cm)
Attention
Before installing, please read “Precautions for Use” (
z
Æ
pages 12 to 16).
Special care should be used when DLP projectors are used in the same room as high power laser equipment. Direct or
z
indirect hitting of a laser beam on to the lens can severely damage the DMD element in which case there is a loss of
warranty.
Note
When projecting to wall or flat objects, even slight warpage or irregularities of the screen may have an effect on the quality
z
of the projected images.
J
Projection distance for PT-CW230U
(All measurements below are approximate and may differ slightly from the actual measurements.)
Projection size
For 4:3 aspect ratio
For 16:9 aspect ratio
For 16:10 aspect ratio
Screen diagonal (SD)
L
A
L
A
L
A
1.40 m(55")
24.0 cm(0.79')
22.9 cm(0.75')
-
-
-
-
1.52 m(60")
26.5 cm(0.87')
24.1 cm(0.79')
23.7 cm(0.78')
27.0 cm(0.89')
23.0 cm(0.75')
22.5 cm(0.74')
1.78 m(70")
31.6 cm(1.04')
26.4 cm(0.87')
28.4 cm(0.93')
29.7 cm(0.97')
27.5 cm(0.90')
24.5 cm(0.80')
2.03 m(80")
36.7 cm(1.20')
28.6 cm(0.94')
33.0 cm(1.08')
32.5 cm(1.07')
32.0 cm(1.05')
26.5 cm(0.87')
2.29 m(90")
41.8 cm(1.37')
30.9 cm(1.01')
37.6 cm(1.23')
35.3 cm(1.16')
36.5 cm(1.02')
28.5 cm(0.94')
2.54 m(100")
-
-
42.2 cm(1.39')
38.0 cm(1.25')
41.0 cm(1.35')
30.5 cm(1.00')
2.79 m(110")
-
-
-
-
45.5 cm(1.49')
32.5 cm(1.07')
* Install the projector where the projection distance should be within 23.0 cm and 45.5 cm in order to keep the
lens performance.
Any other projection distance can be obtained according to the screen dimensions (m) using the following
calculations.
The distance is shown in units of meters. (The calculated distance may contain a certain error.)
If the screen dimensions are written as “SD",
For 4:3 aspect ratio
For 16:9 aspect ratio
For 16:10 aspect ratio
Screen height (SH)
= SD(m) × 0.6
= SD(m) × 0.490
= SD(m) × 0.530
Screen width (SW)
= SD(m) × 0.8
= SD(m) × 0.872
= SD(m) × 0.848
Projection distance (L)
= 0.200425 × SD(m) - 0.039967 = 0.18196 × SD(m) - 0.039967 = 0.1770 × SD(m) - 0.039967
L
A
Screen
