Barco G100 User Manual page 16

Safety
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
The HD distance equals 25% of the difference between the determined HD distance and the projection
reflection
distance to the rear projection screen. To determine the HD distance for the used lens and projector model see
chapter "HD for fully enclosed projection systems", page 15.
HD = 25% (HD – PD)
reflection
The light emitted from the screen within the observation shall never exceed the RG2 exposure limit,
determined at 10 cm. The HD
cd/m² or 15000 LUX.
16 R5913459 /00 G100
); also taking into account a 1 meter lateral separation.
reflection
can be neglected if the measured light at the screen surface is below 5000
diffuse