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Screen size
(diagonal)
b
Projection distance
c1
Screen height
c2
Screen height
type(inch)
m m inch m inch m inch
60
24 6 42
70 28 7 49
80 32 7 55
90 36 8 62
100 40 9 69
D
On a horizontal surface
Suspended from the ceiling
a
c2
c1
b
a
c2
c1
b
Setting up
Arrangement (continued)