Pro Lite Technology

Workshop: Photobiological Safety of Lamps and Lighting

Light: the fuel of life

Workshop Overview

The reappraisal of the place of LEDs in safety standards has had a significant impact on the process of bringing to market products containing LEDs or any other non-laser source of optical radiation, whether the emission of light be the primary purpose of the product or not.  From CE marking to consideration of employee safety under the auspices of the EU artificial optial radiation directive, a well defined legal framework is now in place.

The workshop has been designed to provide an overview of photobiology, how standards are implemented, to what they apply and the impact of legislation upon business.

Who Should Attend?

This workshop is aimed at those working for manufacturers of lamps, luminaires (or any product containing non-coherent sources of optical radiation), laboratory managers, laboratory engineers, regulatory affairs managers, quality managers and any individuals who are keen to learn how photobiological safety standards may affect their business.

The Tutor

Leslie Lyons, Technical Support Manager at Bentham Instruments Ltd, Reading UK, has an MPhys degree and has worked in optics and photonics for over twelve years.  Highly experienced in his field, Lyons has been actively involved in photobiological safety standards development and is a member of BSI and IEC committees TC76, "Optical Radiation and Laser Safety" and BSI CH/172/6, "Opthalmic instruments" and sits on the photobiological safety panel of IEC TC34.



Click here for course dates

09:00 - 17:00
(Arrival from 08:30)


Photometric & Optical Testing Services
Film & Photographic Studios
Arle Court
Hatherley Lane
GL51 6PN

Location   Map:  
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 £450 ex. VAT

Leslie Lyons
Lead Trainer
Bentham Instruments Ltd

1. Copy of Course Notes
2. Certificate of Completion
3. Refreshments & Buffet Lunch
To Register:  
Download Registration Form


1. Introduction to Photobiology and Optical Radiation Safety
1.1 Overview of optical radiation
1.2 Overview of photobiology
1.3 Spectral irradiance
1.4 Spectral radiance
1.5 Physiological radiance
1.6 Action spectra

  2.  Practical Session - Spectroradiometric Measurement Principles
2.1 General spectroradiometric principles
2.2 Measurement of irradiance, radiance
2.3 Spectra of various sources

3. Photobiological Safety Standards
3.1 History of photobiological safety standards
3.2 Introduction to IEC62471
3.3 Scope of IEC62471
3.4 Hazards consideration
3.5 Classification System
3.6 Exposure Limits
3.7 Measurement distance (GLS & non-GLS)
3.8 Apparent source location and angular subtense
3.9 Labelling and user information
3.10 Hazard Distance
3.11 Implementation of IEC62471 in Europe & ROW (AORD, IECEE scheme)
3.12 Other relevant standards (eg. 60601-2-57)
3.13 IEC TR 62778 and 60598 - series                                                                3.14 Future Prospects


4. Photobiological Safety Metrology
3.1 Spectral and geometrical aspects of light measurement
3.2 Hazards to the skin and front of eye
3.3 Retinal Hazards
3.4 Array Spectrometer
3.5 Filter Radiometer
3.6 Scanning Monochromator
3.7 IEC62471 Recommended Instrumentation
3.8 IEC62471 measurement system
3.9 System calibration and NEI/NER
3.10 Consideration of uncertainty
3.11 At what point is measurement required
3.12 Analysis based on data sheet values
3.13 Effects of filters, diffusers, lenses and reflectors                                                  

  5. Practical Session - Putting IEC62471 and the AORD into Practice
5.1 Use PSL Profiler to determine (apparent) source subtense and location
5.2 Use lens set up to measure radiance, as described in 62471 section
5.3 Measurement of source irradiance with DMc150 monochromator
5.4 Measurement of spectral irradiance with IDR300-PSL and TEL309
5.5 AORD example using office lighting and industrial source
5.6 Can risk group classification be calculated from data sheet values?
5.7 Source luminance and the 10^4 cd m-2 visual comfort threshold
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