Gavin Kohn's 3D-Printed Spectrometer Turns a DSLR and Three Lenses Into an Optical Science Tool
Maker Gavin Kohn has released a guide to turning a digital SLR camera into a spectrometer for measuring any light's spectral output, from LEDs to stars — by combining a trio of lenses and a pair of razor blades.
"This is a DIY spectrometer that can be used with DSLR lenses," Kohn explains of his creation. "This design incorporates a diffraction grating, adjustable slit, and three DSLR lenses to produce a spectrometer that can be used to measure the light spectrum from lights or even stars. It can be used as a teaching tool or a fun way to learn about light spectrums."
Want to have a better idea of the light that's coming out of your LEDs, bulbs — or even a star in the sky? Build your own spectrometer and find out. (📷: Gavin Kohl)
A spectrometer is a tool for splitting incoming light into its spectral components...
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