Setting Up The Projector - InFocus LP930 User Manual

SETTING UP THE PROJECTOR

1 Place the projector on a flat surface.
The projector must be within 10 feet (3 m) of your power
•
source and within 6 feet (1.8 m) of your computer.
If you want to project from behind a translucent screen, set
•
up the projector behind your screen. See "Rear Projection"
on page 36 to reverse the image.
If you are installing the projector on the ceiling, refer to the
•
installation guide that comes with the Ceiling Mount Kit for
more information. To turn the image upside down, see
"Ceiling Projection" on page 36. The Ceiling Mount Kit is
sold separately; see "Optional Accessories" on page 50.
2 Position the projector the desired distance from the screen.
The distance from the lens of the projector to the screen and
•
the zoom lens setting determine the size of the projected
image. Table 1 shows example projected image sizes and
minimum and maximum distances to the screen.
The formulas for distance to the screen are:
Max distance (ft) = diagonal image size (ft) ÷.49
Min distance (ft) = diagonal image size (ft) ÷.69
Diagonal Image Size and Width at Maximum and Minimum Distance
Diagonal
Image Size Image Width
(inches)
300
240
180
144
120
96
72
60
48
Table 1:
to Screen-Standard Lens
Distance to screen
Maximum
distance
(inches) (feet)
240 51
192 41
144 31
115 24
96 20
77 16
58 12
48 10
38 8
Minimum
Distance
(feet)
36
29
22
17
14
12
9
7
6
NOTE: For a similar table for the
optional short throw and long
throw lenses, see page 58 of the
Appendix.
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