Desktop Setup - NEC VT650 Installation Data

VT650 Installation Data
Desktop and Ceiling Mount
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Distances are in inches. For millimeters multiply by 25.4.

Desktop Setup

Screen Ctr
B
Lens Ctr
D
Scrn Bottom
Distance Chart
Screen Size (4:3)
Diagonal Width(H)
inches inches
25
40
60
67 53.6
72 57.6
84 67.2
90
100
120
150 120
180 144
210 168
240 192
270 216
300 240
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
Height (V)
inches
20 15
32 24
48 36
40.2
43.2
50.4
72 54
80 60
96 72
90
108
126
144
162
180
C
Throw Distance
C
B
wide - tele
inches inches
6.0 NA - 42.4
9.6 57.1 - 68.9
14.4 86.5 - 104.1
16.1 96.8 - 116.5
17.3 104.2 - 125.3
20.2 121.8 - 146.5
21.7 130.6 - 157.1
24.1 145.3 - 174.7
28.9 174.7 - 210.0
36.1 218.8 - 263.0
43.3 263.0 - 315.9
50.5 307.1 - 368.8
57.7 351.2 - 421.8
65.0 395.3 - NA
72.2 439.4 - NA
α
2.3"
Projector Feet
D
inches
1.5
2.4
3.6
4.0
4.3
5.0
5.3
5.9
7.1
8.9
10.7
12.5
14.3
16.0
17.8
Visual Systems
ver 1.5
α
wide - tele
degrees
NA - 8.1
9.6 - 8.0
9.5 - 7.9
9.5 - 7.9
9.4 - 7.9
9.4 - 7.9
9.4 - 7.8
9.4 - 7.8
9.4 - 7.8
9.4 - 7.8
9.4 - 7.8
9.3 - 7.8
9.3 - 7.8
9.3 - NA
9.3 - NA
Page 3