10' high
image
H
bottom of image
5' below lens
10' high
image
bottom of image
2.5' above lens
H
Once you know the diagonal image size, you can figure out the
width and height using these formulas:
width (inches) = diagonal (inches) x 0.8
height (inches) = width (inches) x 0.75
lens center
lens center
F
IGURE
Lowest image projection angle
F
IGURE
Highest image projection angle
5
6
7