1. Safety
For example, cinema projectors that have a HD greater than 1 m and emit light into an uncontrolled area where persons may be
present should be positioned in accordance with “the
fi
xed projector installation” parameters, resulting in a HD that does not extend
into the audience area unless the beam is at least 2 m above the
fl
oor level. In non-cinema environments where unrestrained
behavior is reasonably foreseeable, the minimum separation height should be greater than or equal to 3,0 m to prevent potential
exposure, for example by an individual sitting on another individual’s shoulders, within the HD. For example, a suf
fi
ciently large
separation height may be achieved by mounting the image projector on the ceiling or through the use of physical barriers.
For applications installed in the USA market the above limits do not apply. The relevant minimum separation height is 2.5m (8.2 ft)
and the separation width is de
fi
ned as 1.0m (3.3 ft) by the FDA CDRH.
RA
TH
PR
RZ
HD
SW
1m
SW
SW
SW
HD
SH
RA
TH
RZ
SH
(B) TOP VIEW
(A) SIDE VIEW
Image 1-1
A
Side view.
B
Top view.
RA Restricted Access location (boot area of projector).
PR Projector.
TH Theater.
RZ Restriction Zone in the theater.
SH Separation Height.
SW Separation Width.
Based on national requirements, no person is allowed to enter the projected beam within the zone between the projection lens and
the related hazard distance (HD). This shall be physically impossible by creating suf
fi
cient separation height or by placing barriers.
The minimum separation height takes into account the surface upon which persons other than operator, performers or employees
are permitted to stand.
On image 1-2 a typical setup is displayed. It must be veri
fi
ed if these minimum requirements are met. If required a restricted zone
(RZ) in the theater must be established. This can be done by using physical barrier, like a red rope as illustrated in image 1-2.
The restricted area sticker can be replaced by a sticker with only the symbol.
PR
RESTRICTED
AREA
RESTRICTED
AREA
Image 1-2
R5906714 DP2K CLP SERIES 09/05/2016
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