Hitachi CPX275WA User Manual page 8

Adjusting the Screen Size and Projection Distance
Refer to the illustrations and tables below to determine the screen size and
projection distance.
The values shown in the table are calculated for a full size screen
(CPS225: 800x600 pixels/CPX275: 1024x768 pixels).
a:Distance from the projector to the screen (±10%)
b:Distance from the lens center to the bottom of the screen (±10%)
The screen
Lens center
b
a
The screen
Lens center
b
a
Top view
If 4:3 aspect ratio
Side view
Top view If 16:9 aspect ratio
Side view
4
3
a [inch (m)]
Screen size
[inch (m)]
Min.
40 (1.0) 37 (0.9)
60 (1.5) 57 (1.5)
80 (2.0) 77 (1.9)
100 (2.5) 96 (2.4)
120 (3.0) 116 (2.9)
150 (3.8) 145 (3.7)
200 (5.0) 194 (4.9)
16
9
a [inch (m)]
Screen size
[inch (cm)]
Min.
30 (0.8) 30 (0.8)
40 (1.0) 41 (1.0)
60 (1.5) 62 (1.6)
80 (2.0) 83 (2.1)
100 (2.5) 105 (2.7)
120 (3.0) 126 (3.2)
150 (3.8) 158 (4.0)
200 (5.0) 212 (5.4)
b
[inch (cm)]
Max.
46 (1.2) 3 (8.7)
69 (1.8) 5 (13.1)
93 (2.4) 7 (17.4)
116 (2.9) 9 (21.8)
139 (3.5) 10 (26.1)
174 (4.4) 13 (32.7)
233 (5.9) 17 (43.5)
b
[inch (cm)]
Max.
38 (1.0) 0 (1)
50 (1.3) 0 (1)
76 (1.9) 1 (2)
101 (2.6) 1 (2)
127 (3.2) 1 (3)
152 (3.9) 1 (4)
190 (4.8) 2 (4)
254 (6.4) 2 (6)
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