LED – Luminaire Photometry and Design Course

A comprehensive course covering the challenges of measuring light and colour for those designing LED luminaires and other light sources. This course covers concepts such as measurement of total light output, examines efficacy and accuracy, total light output as a function of angle, measurement of LED colour and colour rendering. The course also deals with gonio-photometry, spectra-radiometer and standards.

Enquire 0121 260 6020 or 0121 260 6150
Registration Form 27th -28th Oct

AGENDA:

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)

1. Making Measurements – Practical Hints & Tips

i.    Luminous Flux

ii.    Illuminance/Luminous Intensity

iii.    Luminance

iv.    Goniophotometry

1. Photometry versus spectroradiometry
2. Practical Hints & Tips
3. FAQ

14.45 Coffee

15.15 Session 4.

LED Luminaire Design (Dr Neil Haigh, Blueside Photonics.)

1. Luminaire Design Considerations, luminaire efficacy.
2. “Useful light”- talk about uniformity ratios, getting the light to where you need it. Task efficacy, application efficacy.
3. Standard Photometric Data – Understanding the Formats (IES, EULUMDAT)
4. 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.
5. Lighting System Application Efficacy
6. Artificial optical hazard directive.
7. Use of Lighting Design Software (RELUX, Photometric toolbox). How well do they deal with LEDs? What are the differences between the different programs?
8. 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.

Registration Form 27th -28th Oct

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LED-Luminaire Photometry and Design Course1