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9. Appendix
Projection range for the different lenses
50-300"
40-500"
50-300"
50-300"
50-300"
50-300"
0.8–5.1 m
NP16FL :
NP17ZL: 1.3–11.7 m
NP31ZL: 0.6–10.4 m
NP18ZL: 1.8–14.9 m
NP19ZL: 2.4–24.1 m
NP20ZL: 3.8–35.4 m
NP21ZL: 5.6–54.8 m
50-300"
Applicable lens unit: NP39ML
Screen size
(inch)
Throw
distance
L1 (m)
L2 (m)
H1 (m)
H2 (m)
100
0.82
-0.024
2.05
0.71
120
0.97
0.13
2.43
0.81
150
1.20
0.35
3.00
0.98
200
1.57
0.73
3.95
1.26
250
1.95
1.11
4.90
1.54
300
2.33
1.49
5.85
1.81
350
2.71
1.87
6.81
2.09
TIP
Calculation of the throw distance from the screen size
NP39ML lens throw distance (m) = H × 0.38 : 0.8 m (min.) to
2.7 m (max.)
“H” (Horizontal) refers to the screen width.
* Figures differ by several % with the table above because the
calculation is approximate.
L1
H1
H2
L2
Screen face
Screen center
Projector rear face
Center of the lens unit
projection window
Projector bottom face
(In the condition the tilt foot is not
lengthen)
[Throw distance]
Screen
bottom
end
Screen top end
