LED-Luminaire-Photometry-and-Design-Course1

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					                                          LED – Luminaire Photometry and Design
                                                          Course

                                                               Agenda
                                               nd         th
                                            27 and 28 October at Birmingham Science Park




8.30. Registration and coffee

9.30 Session 1

Basic Concepts - Light & the Human Visual System
   Light and the electromagnetic spectrum
   Photopic response
   Mesopic & scotopic vision

Basic Concepts - the Optical Properties of Materials
    Diffuse reflectance & transmittance
    Lambert's cosine law
    Specular reflectance & transmittance
    BRDF and scatterometry

Photometry
  Luminous flux
  Illuminance
  Luminous intensity
  Luminance
  The inverse squared & cosine rules
  Photometric field - near-field versus far-field
  Converting between units

10.30. Coffee and Networking.

11.00 Session 2

Colorimetry
   Colour vision and tristimulus theory
   CIE colour spaces
   Chromaticity
   Colour temperature
   Standard illuminants
   Dominant wavelength
   Colour differences

Spectroradiometry
   Spectral power distributions
   Computation of photometric & colorimetric quantities
   Colour rendering

12.30 Lunch
13.15 Session 3

LED Photometry & Colorimetry – Practical (Dr Gareth John, Birmingham Science
Park-Aston/PCUK)
     a. Making Measurements – Practical Hints & Tips
              i. Luminous Flux
             ii. Illuminance/Luminous Intensity
            iii. Luminance
            iv. Goniophotometry
     b. Photometry versus spectroradiometry
     c. Practical Hints & Tips
     d. FAQ

14.45 Coffee

15.15 Session 4.

LED Luminaire Design (Dr Neil Haigh, Blueside Photonics.)
     e. Luminaire Design Considerations, luminaire efficacy.
     f. “Useful light”- talk about uniformity ratios, getting the light to where you need it.
        Task efficacy, application efficacy.
     g. Standard Photometric Data – Understanding the Formats (IES, EULUMDAT)
     h. Presentation of lighting data- cone diagrams- how to calculate the cone angle for
        various applications, how does it vary between different industries, e.g., theatrical,
        architectural.
     i. Lighting System Application Efficacy
     j. Artificial optical hazard directive.
     k. Use of Lighting Design Software (RELUX, Photometric toolbox). How well do they deal
        with LEDs? What are the differences between the different programs?
     l. FAQ

1630. Lab tour and close

Day 2: Practical session

8.30 registration and coffee

9.30 How to make a photometric measurement

Dr Gareth John shows the delegates how to carry out photometric, goniophotometric,
Spectroradiometric, colorimetric and thermographic measurements on an LED luminaire. This
session will cover measurements of total luminous flux, luminous intensity, illuminance,
correlated colour temperature, colour rendering index, temperature and the importance of the
colour correction factor.

				
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posted:11/17/2012
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