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6
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.
• Position the projector the de
sired 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.
IN1110a image offset is 115%;
IN1112a image offset is 112.4%. This means that if you have an image 10’
high, the bottom of the image will be 1.5' (IN1110a) and 1.24' (IN1112a) above
the center of the lens.
(IN1110a)
(IN1112a)
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
Table 1: (IN1110a)
Range of distance to the screen for a given screen size
Diagonal Screen
Size (inches/m)
Distance to screen
Maximum
di
stance
(feet/m)
Minimum
Distance
(feet/m)
60/1.5 8'7"/2.6 7'10"/2.4
80/2.0 11'6"/3.5 10'5"/3.2
90/2.3 12'11"/3.9 11'8"/3.6
150/3.8 21'6"/6.6 19'6"/5.9
Table 2: (IN1112a)
Range
of distance to the screen for a given screen size
Diagonal Screen
Size (inches/m)
Distance to screen
Maximum
di
stance
(feet/m)
Minimum
Distance
(feet/m)
60/1.5 7'2"/2.2 6'7"/2.0
80/2.0 9'7"/2.9 8'9"/2.7
90/2.3 10'10"/3.3 9'10"/3.0
150/3.8 18'0"/5.5 16'5"/5.0