Infocus IN2124a ユーザーズマニュアル

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Positioning the projector
To determine where to position the projector, consider the size and shape of your 
screen, the location of your power outlets, and the distance between the 
projector and the rest of your equipment. Here are some general guidelines:
Position the projector on a flat surface at a right angle to the screen. IN2124a 
must be at least 45.3” (1.2m) from the projection screen, and IN2126a must 
be at least 55.4” (1.4m) from the projection screen.
If you are installing the projector on the ceiling, we strongly recommend using 
InFocus approved ceiling mounts for proper fitting, ventilation and installation. 
Refer to the installation guide that comes with the InFocus Ceiling Mount Kit 
(p/n PRJ-MNT-UNIV) for more information. The warranty does not cover 
any damage caused by use of non-approved ceiling mount kits or by installing 
in an improper location. To turn the image upside down, see “Ceiling mount” 
on page 28. We recommend using an InFocus authorized ceiling mount.
Position the projector the desired distance from the screen. The distance 
from the lens of the projector to the screen and the video format determine 
the size of the projected image.
Model
Minimum Distance to Screen
Offset
Offset for 60in. Image
IN2124a
45.3"/1.2m
15%+-5%
9"/22.9cm
IN2126a
55.4"/1.4m
13%+-5%
7.8"/19.8cm
60 inches 
high image
bottom of image 9 
inches above center 
of lens
Projection angle
lens center
Table 1: IN2124a (XGA) Screen size 
Throw Ratio = 1.9 to 2.2
Diagonal Screen 
Size (inches/m) 
Size of the 
Projected Image 
Width
(inches/m)
Distance to screen
Minimum distance
(inches/m)
Maximum distance
(inches/m)
40”/1.0m
32”/0.8m
62”/1.6m
69”/1.7m
60”/1.5m
48”/1.2m
94”/2.4m
103”/2.6m
80”/2.0m
64”/1.6m
125”/3.2m
137”/3.5m
100”/2.5m
80”/2.0m
156”/4.0m
172”/4.4m
150”/3.8m
120”/3.0m
234”/5.9m
257”/6.5m
Table 2: IN2126a (WXGA) Screen size
Throw Ratio = 1.9 to 2.2
Diagonal Screen 
Size (inches/m) 
Size of the 
Projected Image 
Width
(inches/m)
Distance to screen
Minimum distance
(inches/m)
Maximum distance
(inches/m)
45”/1.1m
38”/1.0m
55.4”/1.4m
69.3”/1.8m
60”/1.5m
51”/1.3m
74.5”/1.9m
92.9”/2.4m
80”/2.0m
68”/1.7m
100.0”/2.5m
124.4”/3.2m
100”/2.5m
85”/2.2m
125.5”/3.2m
155.8”/4.0m
150”/3.8m
128”/3.2m
189.2”/4.8m
234.6”/6.0m