HD2402
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V1.4
6.4.2
Luxmeter table
The values measured by the luxmeter are displayed in the
Luxmeter
table.
The data displayed in the table are:
•
Illuminance value in Lux (if a single sample is considered, the value corre-
sponds to the instant value or, if several samples are taken into consideration,
it corresponds to the mean value).
•
Alpha angle in degrees, it is the angle under which the analyzed source is seen.
•
Alpha angle in radiants, equal to the above mentioned angle, but expressed in
radiants.
•
Omega solid angle in steradians, a solid angle under which the analyzed source
is seen. This angle is used for the calculation of luminance.
•
Luminance calculated starting from geometric parameters, if available.
The luminance value for the analyzed source is obtained by dividing illuminance
by factor F calculated from geometric data. In case of measurements regarding
ordinary illumination light (white light), if the calculated value is below 10000
cd/m
2
, additional verifications are not necessary and the source is considered
safe (“A Non-Binding Guide to the Artificial Optical Radiation Directive
2006/25/EC” page 74).
•
Luminance calculated considering a 100mrad angular aperture.
•
Luminance calculated considering a 11mrad angular aperture.
Note
: the two last luminance values are supplied in case geometric parameters are
not available or in case Alpha angle obtained from geometric parameters is below
100mrad.
If the
Include in Report
box is selected, the data in the table will be included in the fi-
nal report.
Summary of Contents for HD2402
Page 2: ...HD2402 2 V1 4 HD2402 Photo Radiometer A O R Dosimeter...
Page 55: ......
