19
R5911443 /08
UDM
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.
For this type of setup 3 different HD shall be considered:
•
HD as discussed in
“High Brightness precautions: Hazard Distance”, page 16
, relevant for intrabeam
exposure.
•
HD
reflection
: the distance that has to be kept restrictive related to the reflected light from the rear projection
screen.
•
HD
diffuse
: the relevant distance to be considered while observing the diffuse surface of the rear projection
screen.
As described in
“High Brightness precautions: Hazard Distance”, page 16
, it is mandatory to create a
restricted zone within the beam areas closer than any HD. In the enclosed projection area the combination of
two restricted zones are relevant: The restricted zone of the projected beam toward the screen; taking into
account 1 meter Separation Width (SW) from the beam onward. Combined with the restricted zone related to
the rear reflection from the screen (HD
reflection
); also taking into account a 1 meter lateral separation.
The HD
reflection
distance equals 25% of the difference between the determined HD distance and the projection
distance to the rear projection screen. To determine the HD distance for the used lens and projector model see
chapter
“HD in function of modifying optics”, page 19
HD
reflection
= 25% (HD – PD)
The light emitted from the screen within the observation shall never exceed the RG2 exposure limit,
determined at 10 cm. The HD
diffuse
can be neglected if the measured light at the screen surface is below 5000
cd/m² or 15000 LUX.
1.6 HD in function of modifying optics
Hazard distance
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Throw Ra!o (TR)
UDM
1
1
2
Image 1–5
Summary of Contents for UDM 4K15
Page 1: ...ENABLING BRIGHT OUTCOMES User manual UDM ...
Page 76: ...R5911443 08 UDM 76 GUI Image ...
Page 156: ...R5911443 08 UDM 156 GUI System Settings ...
Page 168: ...R5911443 08 UDM 168 GUI Status menu ...
Page 176: ...R5911443 08 UDM 176 Product maintenance ...
Page 192: ...R5911443 08 UDM 192 Video timing tables ...
Page 198: ...R5911443 08 UDM 198 DMX chart ...
Page 202: ...R5911443 08 UDM 202 WiFi GSM compliance information ...
Page 212: ...R5911443 08 UDM 212 List of tools ...
Page 218: ...R5911443 08 UDM 218 Index ...
Page 219: ......