7The bottom of the image can move from half way below the pro-jector’s lens (Figure 5) to parallel with the lens (Figure 6).

Example: With a 10’ image, at the lowest projection angle, the bot-

tom of the image is 5’ below the projector’s lens; at the highest projection angle, the bottom of the image is parallel with the lens.

FIGURE 5

Lowest image projection angle

FIGURE 6

Highest image projection angle

Once you know the diagonal image size, you can figure out the width and height using these formulas:width (inches) = diagonal (inches) x 0.8height (inches) = width (inches) x 0.75
L L
Inout InIn
L
BNCBNC R RR
A
0
A
0
R
s
R
G
G
B
B
10’ high
image
bottom of image
5’ below lens
H
lens center
L L
Inout InIn
L
BNCBNC R RR
A
0
A
0
R
s
R
G
G
B
B
10’ high
image
bottom of image
parallel with lens
lens center