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Hazard distance (IEC 62471-5:2015)
The distance at which the level of exposure has reached the level of the applicable Exposure Limit Value is known
as the hazard distance (HD) or safety distance.
Do not look into the projected light from inside the hazard distance (within RG3 range). It is considered to be safe
to look into the projected light from outside the hazard distance (within RG2 range).
In case of the projector categorized as the risk group 3, there is a possibility of damaging the eyes by direct
irradiation. In case of the projector categorized as the risk group 2, it can be used safely without damaging the
eyes in any condition. This projector is categorized as the risk group 3.
D1
RG2
D2
RG2
Projection lens
Model No.
ET-D3LEF70
ET-D3LEW50
ET-D75LE50
ET-D3LEW60
ET-D75LE6
ET-D3LEW10
ET-D75LE10
ET-D3LES20
ET-D75LE20
ET-D75LE30
ET-D75LE40
ET-D3LET80
ET-D75LE8
10 - ENGLISH
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HD
RG3
Except ET-D75LE95, ET-D75LE90
HD
RG3
ET-D75LE95, ET-D75LE90
HD
*1
D1
*2
1.38
0.44
< 1.0
0.69
0.67
1.2
0.62
1.7
0.67
3.2
0.87
4.8
0.68
7.8
0.70
HD
D3
RG2
RG3
D4
HD
RG2
RG3
D2
*2
D3
*2
1.38
2.45
0.44
0.70
0.69
0.72
0.67
0.77
0.62
0.72
0.67
0.78
0.87
1.00
0.68
0.78
0.70
0.81
(Unit: m)
D4
*2
2.45
0.70
0.72
0.77
0.72
0.78
1.00
0.78
0.81
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