Barco F80 series, User Manual

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R5906852-01 F80 series 19
P
R
RESTRICTED
AREA
R
E
S
T
R
I
C
T
E
D
A
R
E
A
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).
RA TH
sw
PD
HD
DIFFUSE
s
w
RZ
s
w
s
w
PR
HD
REFLECTION
RESTRICTED
AREA
R
E
S
T
R
I
C
T
E
D
A
R
E
A
Image 1-3
RA Restricted Access location (enclosed projection area).
PR Projector.
TH Theater (observation area).
RZ Restriction Zone.
PD Projection Distance.
SW Separation Width. Must be minimum 1 meter.
Safety