Optoma W319UST Manual page 21

Variables:
"a": Image Offset (m) from the center of the lens to the top of the vertical image.
"b": Distance from the center of the lens to the bottom of the projector.
"c": Distance between the wall (projection surface) to the back of the projector.
"d": Image Diagonal.
"g": Distance between the center of the lens and wall (projection surface).
"m": Distance between the wall (projection surface) and the front of the projector.
"p": Distance from top of projector to the mounting hole.
"H": Height of the Image.
"W":Width of the image.
b
m
p
c
a
g
a
g
c
p
Installation
(H)
(H)
m
b
d
(W)
d
(W)
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