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1. Safety
PR
RESTRICTED
AREA
RESTRICTED
AREA
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
sw
RZ
sw
sw
PR
HD
REFLECTION
RESTRICTED
AREA
RESTRICTED
AREA
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.
For this type of setup 3 different HD shall be considered:
•
HD as discussed in "High Brightness precautions: Hazard Distance (HD)", page 8 , relevant for intrabeam exposure.
•
HD
re
fl
ection
: the distance that has to be kept restrictive related to the re
fl
ected light from the rear projection screen.
•
HD
diffuse
: the relevant distance to be considered while observing the diffuse surface of the rear projection screen.
10
R5906852 F80 SERIES 21/09/2017
Summary of Contents for F80-Q7
Page 1: ...F80 series User Manual R5906852 00 21 09 2017...
Page 4: ......
Page 16: ...1 Safety 12 R5906852 F80 SERIES 21 09 2017...
Page 19: ...2 Remote Control Unit 1 Image 2 5 R5906852 F80 SERIES 21 09 2017 15...
Page 20: ...2 Remote Control Unit 16 R5906852 F80 SERIES 21 09 2017...
Page 26: ...3 Input Communication 22 R5906852 F80 SERIES 21 09 2017...
Page 36: ...4 Getting Started 32 R5906852 F80 SERIES 21 09 2017...
Page 40: ...5 Graphic User Interface GUI 36 R5906852 F80 SERIES 21 09 2017...
Page 74: ...9 GUI System Settings 70 R5906852 F80 SERIES 21 09 2017...
Page 76: ...10 Status menu 72 R5906852 F80 SERIES 21 09 2017...
Page 78: ...11 Maintenance 74 R5906852 F80 SERIES 21 09 2017...