E–16
WARNING
• Installing your projector on the ceiling must be done by a
qualified technician. Contact your NEC dealer for more
information.
* Do not attempt to install the projector yourself.
• Only use your projector on a solid, level surface. If the
projector falls to the ground, you can be injured and the
projector severely damaged.
• Do not use the projector where temperatures vary greatly.
The projector must be used at temperatures between 32˚F
(0˚C) and 95˚F (35˚C).
• Do not expose the projector to moisture, dust, or smoke.
This will harm the screen image.
• Ensure that you have adequate ventilation around your
projector so heat can dissipate. Do not cover the vents on
the side or the front of the projector.
If your projector is mounted on the ceiling and your image is
upside down, use the “Menu” and “Select” buttons on your pro-
jector cabinet or
▲▼
buttons on your remote control to correct
the orientation. (See page E-33.)
Reflecting the Image
Using a mirror to reflect your projector’s image enables you to
enjoy a much larger image. Contact your NEC dealer if you need
a mirror. If you’re using a mirror and your image is inverted, use
the “Menu” and “Select” buttons on your projector cabinet or
▲▼
buttons on your remote control to correct the orientation.
(See page E-33.)
Ceiling Installation
Throw Distance
C
B
44.6 mm / 1.76”
α
D
Projector feet
Screen Center
Screen Bottom/
Lens Center
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen
α
= Throw angle
Lens Offset
5.4mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
-
inch
mm
inch
mm
degree
-
degree
25
635
20
508
15
381
8
191
36
910
-
39
1000
0
0
11.8
-
10.8
30
762
24
610
18
457
9
229
43
1100
-
48
1210
0
0
11.7
-
10.7
40
1016
32
813
24
610
12
305
58
1470
-
64
1620
0
0
11.7
-
10.7
60
1524
48
1219
36
914
18
457
87
2220
-
96
2450
0
0
11.6
-
10.6
67
1702
54
1361
40
1021
20
511
98
2490
-
108
2740
0
0
11.6
-
10.6
72
1829
58
1463
43
1097
22
549
105
2670
-
116
2940
0
0
11.6
-
10.6
80
2032
64
1626
48
1219
24
610
117
2970
-
129
3270
0
0
11.6
-
10.6
84
2134
67
1707
50
1280
25
640
123
3120
-
135
3440
0
0
11.6
-
10.5
90
2286
72
1829
54
1372
27
686
132
3350
-
145
3690
0
0
11.6
-
10.5
100
2540
80
2032
60
1524
30
762
147
3730
-
161
4100
0
0
11.5
-
10.5
120
3048
96
2438
72
1829
36
914
176
4480
-
194
4930
0
0
11.5
-
10.5
150
3810
120
3048
90
2286
45
1143
220
5600
-
243
6170
0
0
11.5
-
10.5
180
4572
144
3658
108
2743
54
1372
265
6730
-
292
7410
0
0
11.5
-
10.5
200
5080
160
4064
120
3048
60
1524
294
7480
-
324
8240
0
0
11.5
-
10.5
210
5334
168
4267
126
3200
63
1600
309
7860
-
341
8650
0
0
11.5
-
10.5
240
6096
192
4877
144
3658
72
1829
354
8980
-
389
9890
0
0
11.5
-
10.5
261
6629
209
5304
157
3978
78
1989
385
9770
-
424
10760
0
0
11.5
-
10.5
270
6858
216
5486
162
4115
81
2057
398
10110
-
438
11130
0
0
11.5
-
10.5
300
7620
240
6096
180
4572
90
2286
443
11240
-
487
12370
0
0
11.5
-
10.5
Screen Size
Diagonal
Width
Height
B
C
wide
tele
D
α
wide
tele
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and top of screen
α
= Throw angle