NEC LT265 - Manual (Page 22)

15
2. Installation and Connections
Throw Distance and Screen Size
The following shows the proper relative positions of the pro-
jector and screen. Refer to the table to determine the posi-
tion of installation.
Distance Chart
B = Vertical distance between lens center and screen cen-
ter
C = Throw distance
D = Vertical distance between lens center and bottom of
screen (top of screen for ceiling application)
α = Throw angle
NOTE: Distances may vary +/-5%.
α
Wide – Tele
degree
15.4 – 12.7
15.3 – 12.6
15.1 – 12.5
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
14.9 – 12.4
14.9 – 12.3
14.9 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
inch
18
24
36
40
43
48
50
54
60
72
90
108
120
126
144
157
162
180
210
240
270
300
Screen Size B C
Wide – Tele
D
Diagonal Width Height
inch
45.6 – 56.0
61.5 – 75.4
93.5 – 114.1
104.7 – 127.7
112.7 – 137.4
125.5 – 152.9
131.9 – 160.6
141.5 – 172.2
157.4 – 191.6
189.4 – 230.3
237.3 – 288.4
285.3 – 346.6
317.2 – 385.3
333.2 – 404.7
381.2 – 462.8
414.7 – 503.4
429.1 – 520.9
477.0 – 579.0
557.0 – 675.8
636.9 – 772.7
716.8 – 869.5
796.7 – 966.4
inch
3.6
4.8
7.2
8.0
8.6
9.6
10.1
10.8
12.0
14.4
18.0
21.6
24.0
25.2
28.8
31.4
32.5
36.1
42.1
48.1
54.1
60.1
inch
12.6
16.8
25.2
28.1
30.2
33.6
35.3
37.8
42.0
50.4
63.0
75.6
84.0
88.2
100.8
109.7
113.5
126.1
147.1
168.1
189.1
210.1
inch
30
40
60
67
72
80
84
90
100
120
150
180
200
210
240
261
270
300
350
400
450
500
inch
24
32
48
54
58
64
67
72
80
96
120
144
160
168
192
209
216
240
280
320
360
400
LT265
Lens Center
Throw Angle ( Ͱ)
Throw Distance (C)
Screen center
Screen Diagonal
Screen Width
Screen Height
Screen Bottom
(B)
(D)
α
Wide – Tele
degree
15.4 – 12.7
15.3 – 12.6
15.1 – 12.5
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
15.0 – 12.4
14.9 – 12.4
14.9 – 12.3
14.9 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
14.8 – 12.3
mm
457
610
914
1021
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
3978
4115
4572
5334
6096
6858
7620
Screen Size B C
Wide – Tele
D
Diagonal Width Height
mm
1,157 – 1,423
1,563 – 1,915
2,375 – 2,899
2,659 – 3,243
2,862 – 3,489
3,187 – 3,883
3,349 – 4,080
3,593 – 4,375
3,999 – 4,867
4,811 – 5,851
6,028 – 7,327
7,246 – 8,802
8,058 – 9,786
8,464 –10,278
9,682 –11,754
10,534 –12,787
10,899 –13,230
12,117 –14,706
14,147 –17,166
16,176 –19,626
18,206 –22,086
20,235 –24,545
mm
91
122
183
204
219
244
256
274
305
366
458
549
610
641
733
797
824
916
1069
1222
1375
1527
mm
320
427
640
714
768
853
896
960
1067
1280
1601
1921
2134
2241
2562
2786
2882
3202
3736
4270
4804
5337
mm
762
1016
1524
1702
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6629
6858
7620
8890
10160
11430
12700
mm
610
813
1219
1361
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5304
5486
6096
7112
8128
9144
10160
inch
30
40
60
67
72
80
84
90
100
120
150
180
200
210
240
261
270
300
350
400
450
500
α
Wide – Tele
degree
19.4 – 16.2
19.1 – 16.0
18.9 – 15.9
18.9 – 15.8
18.8 – 15.8
18.8 – 15.8
18.8 – 15.8
18.8 – 15.8
18.7 – 15.7
18.7 – 15.7
18.7 – 15.7
18.6 – 15.7
18.6 – 15.7
18.6 – 15.7
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.5 – 15.6
18.5 – 15.6
inch
18
24
36
40
43
48
50
54
60
72
90
108
120
126
144
157
162
180
210
240
270
300
Screen Size B C
Wide – Tele
D
Diagonal Width Height
inch
35.7 – 43.3
48.2 – 58.4
73.3 – 88.5
82.1 – 99.1
88.4 – 106.6
98.5 – 118.7
103.5 – 124.7
111.0 – 133.7
123.6 – 148.8
148.7 – 178.9
186.3 – 224.1
224.0 – 269.3
249.1 – 299.5
261.7 – 314.5
299.3 – 359.7
325.7 – 391.4
337.0 – 405.0
374.6 – 450.2
437.4 – 525.5
500.2 – 600.8
563.0 – 676.2
625.7 – 751.5
inch
3.5
4.7
7.1
8.0
8.6
9.5
10.0
10.7
11.9
14.3
17.9
21.5
23.9
25.1
28.7
31.2
32.3
35.9
41.9
47.9
53.9
59.9
inch
12.5
16.7
25.1
28.1
30.2
33.5
35.2
37.7
41.9
50.3
62.9
75.5
83.9
88.1
100.7
109.5
113.3
125.9
146.9
167.9
188.9
209.9
inch
30
40
60
67
72
80
84
90
100
120
150
180
200
210
240
261
270
300
350
400
450
500
inch
24
32
48
54
58
64
67
72
80
96
120
144
160
168
192
209
216
240
280
320
360
400
LT245
α
Wide – Tele
degree
19.4 – 16.2
19.1 – 16.0
18.9 – 15.9
18.9 – 15.8
18.8 – 15.8
18.8 – 15.8
18.8 – 15.8
18.8 – 15.8
18.7 – 15.7
18.7 – 15.7
18.7 – 15.7
18.6 – 15.7
18.6 – 15.7
18.6 – 15.7
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.6 – 15.6
18.5 – 15.6
18.5 – 15.6
mm
457
610
914
1021
1097
1219
1280
1372
1524
1829
2286
2743
3048
3200
3658
3978
4115
4572
5334
6096
6858
7620
Screen Size B C
Wide – Tele
D
Diagonal Width Height
mm
906 – 1,100
1,225 – 1,483
1,863 – 2,248
2,086 – 2,516
2,246 – 2,707
2,501 – 3,014
2,628 – 3,167
2,820 – 3,396
3,139 – 3,779
3,776 – 4,545
4,733 – 5,693
5,689 – 6,841
6,327 – 7,607
6,646 – 7,989
7,603 – 9,137
8,272 – 9,941
8,559 –10,286
9,516 –11,434
11,110 –13,348
12,705 –15,261
14,299 –17,175
15,893 –19,089
mm
90
120
181
203
218
242
254
273
303
364
455
547
608
638
729
793
821
912
1064
1216
1369
1521
mm
319
425
639
713
766
852
894
958
1065
1278
1598
1918
2132
2238
2558
2782
2878
3198
3731
4264
4798
5331
mm
762
1016
1524
1702
1829
2032
2134
2286
2540
3048
3810
4572
5080
5334
6096
6629
6858
7620
8890
10160
11430
12700
mm
610
813
1219
1361
1463
1626
1707
1829
2032
2438
3048
3658
4064
4267
4877
5304
5486
6096
7112
8128
9144
10160
inch
30
40
60
67
72
80
84
90
100
120
150
180
200
210
240
261
270
300
350
400
450
500