InFocus LP930, Руководство пользователя

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5
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
NOTE : For a similar table for the
optional short throw and long
throw lenses, see page 58 of the
Appendix.
Table 1:
Diagonal Image Size and Width at Maximum and Minimum Distance
to Screen-Standard Lens
Diagonal
Image Size
(inches)
Distance to screen
Image Width
(inches)
Maximum
distance
(feet)
Minimum
Distance
(feet)
300 240 51 36
240 192 41 29
180 144 31 22
144 115 24 17
120 96 20 14
96 77 16 12
72 58 12 9
60 48 10 7
48 38 8 6