Infocus IN3106 ユーザーズマニュアル

5

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. The 

projector must be at least 4.9 feet (1.5m) from the projection screen.

•

Position the projector within 10 feet (3m) of your power source and 

within 6 feet (1.8m) of your video device (unless you purchase 

extension cables). To ensure adequate cable access, do not place the 

projector within 6 inches (.15m) of a wall or other object.

•

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 mount” on page 31. 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, the zoom setting, 

and the video format determine the size of the projected image.

•

The image exits the projector at a given angle. IN3102/IN3104 image 

offset is 115%; IN3106/IN3108 image offset is 112.4%. This means if 

you have an image 10’ high, the bottom of the image will be 1.5' 

(IN3102/IN3104) and 1.24' (IN3106/IN3108) above the center of the 

lens.

Table 1: (IN3102 & IN3104)

Range of distance to the screen for a given screen size 

Diagonal Screen 
Size (inches/m) 

Distance to screen

Maximum 
distance (feet/m)

Minimum 
Distance (feet/
m)

60/1.5

8.6/2.6

7.8/2.4

80/2.0

11.5/3.5

10.4/3.2

90/2.3

12.9/3.9

11.7/3.6

150/3.8

21.5/6.6

19.5/5.9

Table 2: (IN3106 & IN3108)

Range of distance to the screen for a given screen size 

Diagonal Screen 
Size (inches/m) 

Distance to screen

Maximum 
distance (feet/m)

Minimum 
Distance (feet/
m)

60/1.5

7.3/2.2

6.5/2.0

(IN3102 & IN3104)

(IN3106 & IN3108)

10 ft high 
image

10 ft high 
image

bottom of image 
1.24 ft above center 
of lens

Projection angle

lens center

bottom of image 
1.5 ft above center 
of lens

Projection angle

lens center