BSI PD IEC/TR 62471-4:2022

$198.66

Photobiological safety of lamps and lamp systems – Measuring methods

Published By	Publication Date	Number of Pages
BSI	2022	70

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Categories: 29.140.01 - Lamps in general, BSI

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PDF Catalog

PDF Pages	PDF Title
2	undefined
4	CONTENTS
7	FOREWORD
9	INTRODUCTION
10	1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions
12	3.2 Abbreviated terms 4 Application 4.1 General 4.2 Safety precautions 4.3 Hazard assessment overview
13	4.4 Selection of hazards 4.5 Assessment levels Tables Table 1 – Optical radiation hazards considered by IEC 62471
14	4.6 Initial filtering 4.7 Measurement quantities 4.7.1 Emission wavelengths
15	4.7.2 Irradiance
16	4.7.3 Radiance Figures Figure 1 – Schematic representation of irradiance measurement
17	Figure 2 – Consideration of filling of FOV Figure 3 – Example of a direct measurement of radiance using a lens and aperture
18	4.7.4 Source size and location Figure 4 – Indirect measurement of radiance
20	4.7.5 Temporal emission 4.8 Measurement uncertainty Figure 5 – Example of a rectangular source Figure 6 – Example of the non-uniform radiance distribution
21	5 Test conditions 5.1 General 5.2 Dark room (level A) 5.3 Environmental conditions (level A) 5.4 Power supply 5.5 Product configuration 5.5.1 General
22	5.5.2 Warm up 5.5.3 Measurement distance
24	5.6 Optical alignment 6 Performance characteristics: level A instruments 6.1 General Figure 7 – Example of the emission profiles
25	6.2 Spectral irradiance and radiance 6.2.1 Spectral analysis
26	Table 2 – Recommended wavelength accuracy Table 3 – Recommended bandwidths
27	6.2.2 Entrance optics
28	6.2.3 Calibration standards
29	6.3 Imaging devices 6.4 Temporal emission
30	6.5 Source size and location 7 Performance characteristics: level B instruments 7.1 General 7.2 Irradiance or radiance 7.2.1 General
31	7.2.2 UV lines 7.2.3 Narrow band sources 7.2.4 Known spectral distribution
32	7.2.5 Luminance-based
33	7.3 Apparent source location and subtense 7.4 Temporal emission
34	Table A.1 – Examples of potential risk categories
37	Figure B.1 – Examples of the diffuser optics
38	Figure B.2 – Schematic representation of irradiance measurement
39	Figure B.3 – Geometry of radiance measurement with a single thin lens
40	Figure B.4 – Geometry of a general radiance measurement Figure B.5 – Setup of the aperture stop behind the lens
41	Figure B.6 – Setup of the aperture stop in front of the lens
42	Figure B.7 – Example of a 2D imaging detector
46	Figure D.1 – Example of temporal pulse wave Figure D.2 – Example of a colour-tunable white LED lamp
47	Figure D.3 – A single pulse wave
48	Figure D.4 – Example of a spectrally variable pulse
50	Figure F.1 – Example of a LED flashlight
51	Figure F.2 – Example of a radiance profile Figure F.3 – Spectral radiance distribution
52	Figure F.4 – Example of an infrared tungsten filament lamp Figure F.5 – Example of a radiance profile
53	Figure F.6 – Spectral radiance and irradiance distributions Figure F.7 – Radiance profile of the lamp Figure F.8 – Example of a compact fluorescent lamp (CFL)
54	Figure F.9 – Example of a radiance profile Figure F.10 – Spectral radiance and irradiance distribution
55	Figure F.11 – Example of a radiance profile Figure F.12 – Example of a LED bulb
61	Figure I.1 – Usual measurement conditions for the determination of (time integrated) radiance
62	Figure I.2 – B(λ)-weighted radiance distribution of a phosphor-coated white LED component
64	Bibliography