This is a lens holder for optical experiments. 1/2" vertical post, 1" lens, 2 hold-down screws with nut traps. Fully customizable for larger/smaller lenses and posts. Raised lettering for annotating the holder to reduce confusion.

This component was modified from the Open-source optics project, whose goal is to radically reduce the cost of scientific optical hardware: by the [Michigan Tech's Open Sustainability Technology Research Group]( http://www.mse.mtu.edu/MOST).

For similar see the Open-Source Lab How to Build Your Own Hardware and Reduce Research Costs