| 1 | initial version |
Hi,
I have try to reproduce your result. I have done this experiment. Experimental and setup is :

First I use luxmeter to check experimental procedure. Results are good

Then I have done same experiment using my basic webcam :

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...
| 2 | No.2 Revision |
Hi,
I have try to reproduce your result. I have done this experiment. Experimental and setup is :

First I use luxmeter to check experimental procedure. Results are good

This experiments is a video. Signal versus index file in video is

You can download video here
Then I have done same experiment using my basic webcam :

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...
| 3 | No.3 Revision |
Hi,
I have try to reproduce your result. I have done this experiment. Experimental and setup is :

First I use luxmeter to check experimental procedure. Results are good

This experiments is a video. Signal versus index file in video is

You can download video here
Then TThen I have done same experiment using my basic webcam :

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...
his experiments is a video. Signal versus index file in video is (red curve maximum in each frame blue curve mean around maximum)

You can download video here