NEC NP1250 User Manual page 168

List of Screen Sizes
[NP3250/NP2250/NP1250]
Height
Screen size (Diagonal)
Width
Screen Size and Projection Distance for Desktop when the standard lens is used
The following drawing shows an example for use of Desktop.
Horizontal projection position: Lens centered left to right
Vertical projection position: See the table below.
Screen size
(diagonal)
30"
40"
60"
67"
72"
80"
84"
90"
100"
120"
150"
180"
200"
210"
240"
250"
270"
300"
400"
500"
Projector foot
NOTE: The values in the tables are design values and may vary.
List of Screen Sizes
Screen size
m
30" 0.6
40" 0.8
60" 1.2
80" 1.6
100" 2.0
120" 2.4
150" 3.0
200" 4.1
250" 5.1
300" 6.1
400" 8.1
500" 10.2
Projection Distance (L)
(m)
Wide - Tele
0.89 - 1.20
1.20 - 1.62
1.83 - 2.45
2.05 - 2.75
2.21 - 2.96
2.46 - 3.29
2.59 - 3.46
2.78 - 3.71
3.09 - 4.13
3.72 - 4.96
4.66 - 6.21
5.60 - 7.47
6.23 - 8.30
6.54 - 8.72
7.49 - 9.97
7.80 - 10.39
8.43 - 11.23
9.37 - 12.48
12.51 - 16.66
15.65 - 20.83
H2 = Screen height (V) - H1
88 mm/3.47"
L
54
Width (H)
inch
24.0
31.5
47.2
63.0
78.7
94.5
118.1
161.4
200.8
240.2
318.9
401.6
Formulas: Screen width H (m)=Screen size x 4/5 x 0.0254
Screen height V (m)=Screen size x 3/5 x 0.0254
Screen width H (inch)=Screen size x 4/5
Screen hei g ht V (inch)=Screen size x 3/5
STANDARD
(inches)
Wide - Tele
35.1 - 47.3
47.4 - 63.8
72.2 - 96.6
80.8 - 108.2
87.0 - 116.4
96.9 - 129.5
101.8 - 136.1
109.3 - 146.0
121.6 - 162.4
146.3 - 195.3
183.4 - 244.6
220.5 - 294.0
245.3 - 326.9
257.6 - 343.3
294.7 - 392.6
307.1 - 409.1
331.8 - 442.0
368.9 - 491.3
492.5 - 655.8
616.2 - 820.2
Screen center
H2
H1
Lens center
Screen bottom
9. Appendix
Height (V)
m
inch
0.46 18.0
0.6 23.6
0.9 35.4
1.2 47.2
1.5 59.1
1.8 70.9
2.3 90.6
3.0 118.1
3.8 149.6
4.6 181.1
6.1 240.2
7.6 299.2
(H1)
(cm) (inches)
0-23 0-9.0
0-30 0-12.0
0-46 0-18.0
0-51 0-20.1
0-55 0-21.6
0-61 0-24.0
0-64 0-25.2
0-69 0-27.0
0-76 0-30.0
0-91 0-36.0
0-114 0-45.0
0-137 0-54.0
0-152 0-60.0
0-160 0-63.0
0-183 0-72.0
0-191 0-75.0
0-206 0-81.0
0-229 0-90.0
0-305 0-120.0
0-381 0-150.0