D
D
D
L
L
L
P
P
P
P
P
P
r
r
r
o
o
o
j
j
j
e
e
e
c
c
c
t
t
t
o
o
o
r
r
r
–
–
–
U
U
U
s
s
s
e
e
e
r
r
r
’
’
’
s
s
s
M
M
M
a
a
a
n
n
n
u
u
u
a
a
a
l
l
l
Projection Distance vs. Projection Size
Projection Distance and Size Table
16:9
SCREEN
PROJECTION
DISTANCE
DIAGONAL
WIDTH
HEIGHT
INCH
MM
MM
MM
MIN
LENGTH
(WITH
MAX
ZOOM)
AVERAGE
MAX
LENGTH
(WITH
MIN
ZOOM)
VERTICAL
OFFSET
IN
MM
30 76 664 374 1056 1162
1267 56
40 1016 886
498 1408 1549 1690 75
50 1270 1107 623 1760 1936 2112 93
60 1524 1328 747 2112 2323 2534 112
80 2032 1771 996 2816 3098 3379 149
100 2540 2214 1245 3520 3872 4224 187
120 3048 2657 1494 4224 4646 5069 224
150 3810 3321 1868 5280 5808 6336 280
200 5080 4428 2491 7040 7744 8448 374
220 5588 4870 2740 7744 8518 9293 411
250 6350 5535 3113 8800 9680 10560 467
300 7620 6641 3736 10560
560
–
41
–