Obtaining A Preferred Projected Image Size - BenQ LX890USTD User Manual

Obtaining a preferred projected image size

Projection dimensions
• Installation distance D is measured from the projector rear side to the wall
surface, which is also indicated on the scale of the wall mount.
• Projection distance a is measured from the projector rear side to the projection
surface.
• Vertical offset V is measured from the bottom edge of the wall plate to the top
edge of screen.
Scale value = D
a
D
X
Thickness of the screen
Image center
Center
M
W
Positioning your projector 15
30 mm
Plate height 260 mm
With cover 269 mm
V
Ceiling height (H)
=30mm+ Plate
height +V+h+F
h
F