Distance Chart; Reflecting The Image - NEC LT157 User Manual

Distance Chart

Screen Top
Screen Center
B
Lens Center
1.6" (40.3mm)
D
Screen Bottom
Ceiling Installation
Screen Top
D
1.6" (40.3mm)
Lens Center
B
Screen Center
Screen Bottom
If your projector is mounted on the ceiling and your image is upside down, use the "Menu" and "Select" buttons on your projector cabinet or LM
button on your remote control to correct the orientation. (See page E-37.)

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 LM buttons on your remote control to
correct the orientation. (See page E-37.)
Screen Size
Diagonal Width
inch mm inch mm
25 635 20 508
30 762 24 610
40 1016 32 813
60 1524 48 1219
67 1702 54 1361
72 1829 58 1463
80 2032 64 1626
84 2134 67 1707
90 2286 72 1829
100 2540 80 2032
120 3048 96 2438
150 3810 120 3048
180 4572 144 3658
200 5080 160 4064
210 5334 168 4267
240 6096 192 4877
261 6629 209 5304
270 6858 216 5486
300 7620 240 6096
NOTE: Distances may vary +/–5%.
Throw Distance (C)
Throw Angle ( )
Throw Angle ( )
Throw Distance (C)
B
Height
inch mm inch mm
15 381 6 152
18 457 7 182
24 610 10 243
36 914 14 364
40 1021 16 406
43 1097 17 437
48 1219 19 485
50 1280 20 509
54 1372 21 546
60 1524 24 607
72 1829 29 728
90 2286 36 910
108 2743 43 1092
120 3048 48 1213
126 3200 50 1274
144 3658 57 1456
157 3978 62 1577
162 4115 64 1638
180 4572 72 1820
B=Vertical distance between lens center and
screen center
C=Throw distance
D=Vertical distance between lens center and
screen bottom (screen top for ceiling installa-
tion)
Projector Foot
WARNING
• Installing your projector on the ceiling must be
Projector Foot
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 in-
jured and the projector severely damaged.
• Do not use the projector where temperatures vary
greatly. The projector must be used at tempera-
tures between 41˚F (5˚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.
C
wide tele
inch mm - inch
- - - 46
46 1165 - 56
62 1576 - 75
94 2398 - 114
106 2685 - 127
114 2890 - 137
127 3219 - 153
133 3383 - 160
143 3630 - 172
159 4040 - 191
191 4862 - 230
240 6094 - 288
288 7326 - 347
321 8148 - 385
337 8558 - 405 10283
385 9790 - 463 11761
418 10612 - 502 12746
434 11023 - -
482 12255 - -
E – 17
D
wide
mm inch mm degree
1166 -2 -39 -
1413 -2 -47 8.9
1906 -2 -62 8.8
2891 -4 -93 8.6
3236 -4 -104 8.6
3482 -4 -112 8.6
3877 -5 -124 8.6
4074 -5 -131 8.6
4369 -6 -140 8.6
4862 -6 -155 8.5
5848 -7 -187 8.5
7326 -9 -233 8.5
8804 -11 -280 8.5
9790 -12 -311 8.5
-13 -327 8.5
-15 -373 8.5
-16 -404 8.5
- -17 -420 8.5
- -18 -466 8.4
tele
- degree
- 7.4
- 7.3
- 7.3
- 7.2
- 7.2
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- 7.1
- -
- -