R5911443 /02 UDM20
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 20.
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
0
1
2
3
4
5
6
7
8
9
10
11
12
13
1
1,2
1,4
1,6
1,8
2,0
2,2
2,4
2,6
2,8
3,0
3,2
3,4
3,6
3,8
4,0
4,2
4,4
4,6
4,8
5,0
5,2
5,4
5,6
5,8
6,0
6,2
6,4
6,6
6,8
7,0
7,2
7,4
7,6
7,8
8,
0
8,2
8,4
8,6
8,8
9,0
9,2
9,4
9,6
9,8
10,0
Hazard distance (HD) [m]
Throw Ra!o (TR)
UDM
1
1 2
Image 1-5
HD
Hazard Distance
TR
Throw Ratio
1.7 Radio equipment (optional)
CE Conformity
The UDM may be equipped with WiFi & GSM modules for Pulse Input &
Communication unit, which are fit for use in the European Economic Area
(EEA).
The UDM is restricted to indoor use only when operating in the 5150 to
5250 MHz frequency range.
Safety information
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