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BSI 18/30356172 DC:2018 Edition

BSI 18/30356172 DC:2018 Edition

$13.70

BS EN 63109. Assessment of blue light hazard of light sources and luminaires

Published By Publication Date Number of Pages
BSI 2018 58
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PDF Catalog

PDF Pages PDF Title
1 30356172
3 34_497ea_CD (3)
9 1 Scope
2 Normative references
3 Terms and definitions
13 4 General
4.1 Purpose of the assessment
14 4.2 Pulsed operation and pulse width modulation
4.3 Distances
15 5 Assessment using photometric data (method A)
16 6 Assessment using spectral and luminance data (method B)
17 7 Assessment using spectral radiance data only (method C)
19 8 Transfer of blue light hazard assessment from light sources to luminaires and determination of the threshold distance
8.1 General
20 8.2 Determination of the threshold distance for the luminaire incorporating white light sources
8.2.1 Methods for finding the threshold distance
8.2.2 Determination of the threshold distance with an illuminance meter and an appropriate alignment
21 8.2.3 Determination of the threshold with a goniophotometer system
22 8.3 Detailed assessment of arrays and clusters of light sources, comprised of LED packages
8.3.1 General
8.3.2 Step-by-step assessment
23 8.3.3 Type of arrays and additional steps
26 8.3.4 Multi-die LED packages assessment
8.3.5 Derivation of the formula for average radiance of the full array
27 8.4 Alternative approaches for accurate determination of the threshold distance
8.4.1 General
8.4.2 Assessment using threshold luminance Lthr
28 8.4.3 Method to determine dthr using a luminance meter
8.4.4 Method to determine dthr using an illuminance meter
29 8.4.5 Method to determine dthr with numerical calculation
30 8.4.6 Method to determine dthr using an imaging luminance measuring devices
31 9 Determination of threshold input current for LED packages and similar components
9.1 General
9.2 Assessment using straight line method
32 9.3 Applicability of the Ifthr result for LED package or similar components
34 Annex A (informative) Geometrical relations between radiance, irradiance and radiant intensity
36 Annex B (informative) Distance dependence of tmax for a certain light source
38 Annex C (informative) Rationale and background information for the different assessment methods
C.1 General
39 C.2 Spectrum, colour temperature, and blue light hazard
C.2.1 Calculation of blue light hazard quantities and photometric quantities from emission spectra
42 C.2.2 Luminance and illuminance regimes that give rise to tmax values below 100 s
44 C.2.3 Situation of RG0 or RG1 classification not requiring radiance or irradiance measurement
45 C.2.4 Luminance values giving risk group not greater than RG1
If the luminance of the light source complies with the following values for the given correlated colour temperatures (CCT) its classification will not be greater than RG1.
C.2.5 Illuminance values giving risk group not greater than RG1
47 C.3 LED packages, LED modules, lamps and luminaires
48 C.4 Measurement information flow
C.4.1 Basic flow
50 C.4.2 Conditions for the radiance measurement
51 C.4.3 Special cases (I): Replacement by a lamp or LED module of another type
C.4.4 Special cases (II): Arrays and clusters of primary light sources
52 C.4.5 Light sources producing much light
C.5 Risk group classification
53 Annex D (informative) Correlation between exposure time and risk group
54 Annex E (informative) “Rationale for methods A, B and C”
E.1 Rationale for method A
E.2 Rationale for method B
E.3 Rationale for method C
55 ANNEX F (informative) Risk groups for final products
F.1 Introduction
F.2 Basic considertions on risk groups
56 F.3 Maximum acceptable BLH risk for luminaires
F.4 Luminaires standard requirements
57 F.5 Final considerations
F.6 Conclusion

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BSI 18/30356172 DC
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