NEC PV800UL-W User Manual page 21

③ Example of downward projection installed on the ceiling
CAUTION
* If using lens shift, please consider the shift of projected image according to the volume of lens shift. Instal-
lation example considering the precautionary zone
b
c
d
a: Screen / b: Hazard zone / c: Precautionary zone / d: floor
If the precautionary zone between the floor and the hazard zone can-
not be secured, it is necessary to prevent spectators from entering the
area around the screen as shown in the figure on the right.
xx
Important Information
b
d
c