Hd For Fully Enclosed Projection Systems - Barco F80 Series User Manual

RESTRICTED
AREA
Image 1-2

1.4.3 HD for fully enclosed projection systems

HD
Hazard Distance (HD) is the distance measured from the projection lens at which the intensity or the
energy per surface unit becomes lower than the applicable exposure limit on the cornea or on the
skin. The light beam is considered (to be) unsafe for exposure if the distance from a person to the
light source is less than the HD.
Restriction Zone (RZ) based on the HD
The projector is also suitable for rear projection applications; projecting a beam onto a defuse coated
projection screen. As displayed in Image 1-3 two areas should be considered: the restricted enclosed
projection area (RA) and the observation area (TH).
RESTRICTED
AREA
Image 1-3
RA Restricted Access location (enclosed projection area).
PR Projector.
TH Theater (observation area).
RA
RZ
PR
TH
HD
DIFFUSE
PD
HD
REFLECTION
RZ Restriction Zone.
PD Projection Distance.
SW Separation Width. Must be minimum 1 meter.
R5906852-01
Safety
F80 series 19