Public Lab Research note

CFL Bulb

by claudiaascher New Contributor |

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Build a self-made mini-spectrometer (many instructions & guidelines online available), put the side with the DVD-R surface onto a webcam or smartphone-camera and fix it so that it can't move anymore. Bring it close to the light source (CFL bulb) and capture and calibrate the visible spectrum via

spectrometer spectrum cfl-calibration


This looks great! Which type of spectrometer did you make, and what type of webcam?

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