Throw Distance And Screen Size - NEC HT1000 User Manual

Throw Distance and Screen Size

The following shows the proper relative positions of the projector and
screen. Refer to the table to determine the position of installation.
Distance Chart
Screen Height
4:3
Screen Size
Diagonal Width Height
inch inch
inch
24
30 18
32
40 24
50 40
30
48
60 36
64
80 48
100 80 60
96
120 72
120
150 90
180 144 108
160
200 120
NOTE: A 16:9 image is supported within the limits of the above values.
WARNING
* Installing your projector on the ceiling must be done by a quali-
fied 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 dam-
aged.
• Do not use the projector where temperatures vary greatly. The pro-
jector must be used at temperatures 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.
B C D
Wide – Tele
inch
inch inch
3.6
12.6 35.7 – 43.4
19.3 – 16.1
4.8
16.8 48.2 – 58.4
19.1 – 16.0
6.0
21.0 60.7 – 73.5
19.0 – 15.9
7.2
25.2 73.2 – 88.5
18.9 – 15.8
33.6 98.1 – 118.6 9.6
18.9 – 15.8
12.0
42.0 123.1 – 148.6
18.8 – 15.7
14.4
50.4 148.1 – 178.7
18.8 – 15.7
63.0 185.5 – 223.8 18.0
18.7 – 15.7
21.6
75.6 223.0 – 268.9
18.7 – 15.7
84.0 248.0 – 298.9 24.0
18.7 – 15.7
Screen Width
Screen Diagonal
Screen center
(B)
Lens Center
Throw Angle ( )
Throw Distance (C)
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and bottom of screen
= Throw angle
NOTE: Distances may vary +/–5%.
Screen Size
Wide – Tele Diagonal Width
degree mm mm
762.0 609.6
1016.0 812.8
1270.0 1016.0
1524.0 1219.2
2032.0 1625.6
2540.0 2032.0
3048.0 2438.4
3810.0 3048.0
4572.0 3657.6
5080.0 4064.0
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
mote control to correct the orientation. (See page E-41.)
E-12
Screen Bottom
(D)
B C
Height Wide – Tele
mm mm mm
457.2 319.8 907 – 1102
609.6 426.5 1224 – 1484
762.0 533.3 1541 – 1866
914.4 640.0 1858 – 2248
1219.2 853.4 2493 – 3011
1524.0 1066.9 3127 – 3775
1828.8 1280.4 3761 – 4539
2286.0 1600.6 4713 – 5684
2743.2 1920.8 5664 – 6829
3048.0 2134.3 6298 – 7593
D
Wide – Tele
mm
degree
91.2
19.3 – 16.1
121.7
19.1 – 16.0
152.3
19.0 – 15.9
182.8
18.9 – 15.8
243.8
18.9 – 15.8
304.9
18.8 – 15.7
366.0
18.8 – 15.7
457.6
18.7 – 15.7
549.2
18.7 – 15.7
610.3
18.7 – 15.7
buttons on your re-