NEC MultiSync GT2000 User Manual page 20

Standard Zoom Lens (Wide)
Degree 9.0
(sin= ) 0.16
(cos= ) 0.99
Screen Size inch 32
H–Width mm 812.8
4 : 3 Diagonal inch 40
mm 1016
mm 1557
A
inch 61.3
mm 1537
C
inch 60.5
mm -32
D
inch -1.2
mm 336
E
inch 13.2
Formulas (mm)
H mm=Horizontal Screen Width
C = [(53.2 H) / 26.6]– 85.4
-1
= Tan (8 H) / (26.6 C)
A =C / cos
E = 92.2 + [(8 H) / 26.6]
D = (0.375 H) – E
A : Distance between the lens and the screen center
C : Horizontal throw distance between the screen surface and the lens
D : Vertical distance between the projector foot and the base of image
E : Vertical distance between the projector foot and the screen center
Standard Zoom Lens (Tele)
Degree
(sin= )
(cos= )
Screen Size inch
H–Width mm
4 : 3 Diagonal inch
mm
mm
A
inch
mm
C
inch
mm
D
inch
mm
E
inch
Formulas (mm)
H mm=Horizontal Screen Width
C = {[(53.2 H )/ 26.6] – 85.4} 1.3
-1
= Tan (8 H) / (26.6 C)
A =C / cos
E = 92.2 + [(8 H) / 26.6]
D = (0.375 H) – E
A : Distance between the lens and the screen center
C : Horizontal throw distance between the screen surface and the lens
D : Vertical distance between the projector foot and the base of image
E : Vertical distance between the projector foot and the screen center
8.9 8.8 8.8 8.8
0.15 0.15 0.15 0.15
0.99 0.99 0.99 0.99
48 56 64 72
1219.2 1422.4 1625.6 1828.8
60 70 80 90
1524 1778 2032 2286
2377 2787 3197 3608
93.6 109.7 125.9 142.0
2349 2754 3160 3566
92.5 108.4 124.4 140.4
-1 14 29 44
-0.0 0.6 1.1 1.7
458 519 580 641
18.0 20.4 22.9 25.3
7.0 6.8 6.8 6.8
0.12 0.12 0.12 0.12
0.99 0.99 0.99 0.99
32 48 56 64
812.8 1219.2 1422.4 1625.6 1828.8
40 60 70 80
1016 1524 1778 2032
2013 3075 3606 4137
79.3 121.1 142.0 162.9
1999 3053 3581 4108
78.7 120.2 141.0 161.7
-32 -1 14 29
-1.2 0.0 0.6 1.1
336 458 519 580
13.2 18.0 20.4 22.9
8.7
8.7 8.7 8.7
0.15
0.15 0.15 0.15
0.99 0.99 0.99 0.99
96 120
80 144
2438.4
2032 3048 3657.6
120 150
100 180
3048 3810
2540 4572
4838 6069
4018 7300
190.5 238.9
158.2 287.4
4783 6000
3971 7217
188.3 236.2
156.4 284.1
90 135
60 181
3.5 5.3
2.3 7.1
825 1008
702 1191
32.5 39.7
27.7 46.9
Formulas (inch)
H inch=Horizontal Screen Width
C = [(50.7 H)– 85.4] / 25.4
-1
= Tan (8 H) / (26.6 C)
A =C / cos
E = [92.2 + (7.6 H ) ]/ 25.4
D = (0.375 H) – E
6.8 6.7 6.7 6.7
0.12 0.12 0.12 0.12
0.99 0.99 0.99 0.99
72 80 96 120
3657.6
2032 2438.4 3048
90 100 120 150
2286 2540 3048 3810
4668 5199 6260 7853
246.5
183.8 204.7 309.2
4635 5163 6217 7800
244.8
182.5 203.3 307.1
90
44 60 135
1.7 2.3 3.5 5.3
825
641 702 1008
27.7 32.5 39.7
25.3
Formulas (inch)
H inch=Horizontal Screen Width
C = {[(50.7 H)– 85.4] 1.3} / 25.4
-1
= Tan (8 H) / (26.6 C)
A =C / cos
E =[ 92.2 + (7.6 H )] / 25.4
D = (0.375 H) – E
E-20
8.6 8.6 8.6 8.6
0.15 0.15 0.15 0.15
0.99 0.99 0.99 0.99
160 192 216 240
4064 4876.8 5486.4 6096
200 240 270 300
5080 6096 6858 7620
8120 9761 10992 12223
319.7 384.3 432.76 481.2
8028 9651 10868 12085
316.1 380.0 427.9 475.8
211 272 317 363
8.3 10.7 12.5 14.3
1313 1557 1740 1923
51.7 61.3 68.5 75.7
6.7
6.7 6.7 6.7
0.12
0.12 0.12 0.12
0.99
0.99 0.99 0.99
144
160 192 216
4064 4876.8 5486.4
180
200 240 270
4572
5080 6096 6858
9446
10508 12631 14224
371.9
413.7 497.3 560.0
9382
10436 12546 14128
369.4
410.9 493.9 556.2
181
211 272 317
7.1
8.3 10.7 12.5
1191
1313 1557 1740
46.9
51.7 61.3 68.5
6.6
0.12
0.99
240
6096
300
7620
15817
622.7
15710
618.5
363
14.3
1923
75.7