Infocus IN3128HD Manuale Utente

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. It must be 

at least 48” (1.2m) 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 26. 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.

•

The image offset is 134% +/-5%.  This means that if you have an image 60

 

inches (1.5 meters) tall from a table-mounted projector, the bottom of the 
image will be 20.4

 

inches (51.8 cm) above the centerline of the lens.

60” image 
(height)

bottom of image 
20.4” above center 
of lens

Projection angle

lens center

40”/1.0m

35”/0.9m

48”/1.2m

72”/1.8m

60”/1.5m

52”/1.3m

72”/1.8m

108”/2.7m

80”/2.0m

70”/1.8m

96”/2.4m

144”/3.7m

100”/2.5m

87”/2.2m

120”/3.1m

180”/4.6m

150”/3.8m

131”/3.3m

180”/4.6m

270”/6.9m

174

227

71

Ceiling mount screws:
M4x8 (Max. L= 8mm)
Unit: mm