Infocus lp925 参照ガイド
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.
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 31 to reverse the image.
up the projector behind your screen. See “Rear Projection”
on page 31 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 31. The Ceiling Mount Kit is
sold separately; see “Optional Accessories” on page 44.
installation guide that comes with the Ceiling Mount Kit for
more information. To turn the image upside down, see
“Ceiling Projection” on page 31. The Ceiling Mount Kit is
sold separately; see “Optional Accessories” on page 44.
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 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
Min distance (ft) = diagonal image size (ft) ÷.69
NOTE: For a similar table for the
optional short throw and long
throw lenses, see page 52 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