Thanks to everyone at Liverpool Hope University who attended the colour matching experiment on Monday 12th January.  I am still compiling some of the graphs but here are a couple for interest:

This graph shows the time that you took the experiment:


As you can see, there are some definite trends, particularly at the start of the experiment.  I expected the results to change as time went on and expected there to be more yellow than white.  Although there are a variety of results, I think there is a trend of more yellow than white as time passed.

The following slideshow shows some other graphs and some good results.  It shows that as time passes, more orange is added in to the mixture, something I expected.  It also shows that age and gender do not seem to affect the results. 

This experiment was also performed at the colour vision conference in London on 7th January and was a basic colour matching experiment.  Participants were asked to use yellow (590nm) and white (0.31, 0.31) LEDs to match the colour of the tallow candle.  The results were interesting and the comments very useful.

 Yellow and White LEDs Vs Tallow candle

As you can see, there is a definite trend that, as people add more yellow, they also add more white.  The three results that have no white in them were from participants who found the experiment quite difficult and were displeased with the colour they had matched but felt they could do no better.  With more results from the same experiment I will be holding on Monday 12th January, this will, hopefully, become more apparent and I will be able to deduce some sort of formulae from it. 


Experimental project, April 2008

I complied a series of experiments aimed at non-technical participants to try to discover what would be involved in recreating candle-light and to see how the human eye worked.  There were five experiments in total which started off very easy and moved on to more difficult topics.  Each station was explained fully so participants were aware not only of what they were supposed to be but why they were doing it.  This was so that participants would give more accurate results if the actually understood the concepts.


At the start of the experiment, participants were asked to complete a questionnaire with age, gender, vision and  technical ability then their answers for each station were recorded on the same paper so it was confidential and participants felt they could answer freely.

Futute work: After this set of experiments, I realised that people see colours differently although there were definite trends. I also wanted to use some equipment to gain a more scientific understanding of the colour.


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