IEC 62471 : 1.0 : 2006

PHOTOBIOLOGICAL SAFETY OF LAMPS AND LAMP SYSTEMS

International Electrotechnical Committee

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FOREWORD
INTRODUCTION
1. SCOPE
2. NORMATIVE REFERENCES
3. DEFINITIONS, SYMBOLS AND ABBREVIATIONS
4. EXPOSURE LIMITS (EL'S)
   4.1 General
   4.2 Specific factors involved in the determination
       and application of retinal exposure limits
       4.2.1 Pupil diameter
       4.2.2 Angular subtense of source and measurement
             field-of-view
   4.3 Hazard exposure limits
       4.3.1 Actinic UV hazard exposure limit for the skin
             and eye
       4.3.2 Near-UV hazard exposure limit for the eye
       4.3.3 Retinal blue light hazard exposure limit
       4.3.4 Retinal blue light hazard exposure limit - small
             source
       4.3.5 Retinal thermal hazard exposure limit
       4.3.6 Retinal thermal hazard exposure limit - weak
             visual stimulus
       4.3.7 Infrared radiation hazard exposure limits for
             the eye
       4.3.8 Thermal hazard exposure limit for the skin
5. MEASUREMENT OF LAMPS AND LAMP SYSTEMS
   5.1 Measurement conditions
       5.1.1 Lamp ageing (seasoning)
       5.1.2 Test environment
       5.1.3 Extraneous radiation
       5.1.4 Lamp operation
       5.1.5 Lamp system operation
   5.2 Measurement procedure
       5.2.1 Irradiance measurements
       5.2.2 Radiance measurements
       5.2.3 Measurement of source size
       5.2.4 Pulse width measurement for pulsed sources
   5.3 Analysis methods
       5.3.1 Weighting curve interpolations
       5.3.2 Calculations
       5.3.3 Measurement uncertainty
6. LAMP CLASSIFICATION
   6.1 Continuous wave lamps
       6.1.1 Exempt group
       6.1.2 Risk Group 1 (Low-Risk)
       6.1.3 Risk Group 2 (Moderate-Risk)
       6.1.4 Risk Group 3 (High-Risk)
   6.2 Pulsed lamps
ANNEX A (informative) SUMMARY OF BIOLOGICAL EFFECTS
   Bioeffect datasheet #1: Infrared cataract
   Bioeffect datasheet #2: Photokeratitis
   Bioeffect datasheet #3: Photoretinitis
   Bioeffect datasheet #4: Retinal thermal injury
   Bioeffect datasheet #5: Ultraviolet cataract
   Bioeffect datasheet #6: Ultraviolet erythema
ANNEX B (informative) MEASUREMENT METHOD
   B.1 Instrumentation
       B.1.1 Double monochromator: Recommended instrument
       B.1.2 Broadband detectors
   B.2 Instrument limitations
       B.2.1 Noise equivalent irradiance
       B.2.2 Instrument spectral response
       B.2.3 Wavelength accuracy
       B.2.4 Stray radiant power
       B.2.5 Input optics for spectral irradiance
             measurements: Recommendation
       B.2.6 Linearity
   B.3 Calibration sources
ANNEX C (informative) UNCERTAINTY ANALYSIS
ANNEX D (informative) GENERAL REFERENCES