Interesting post from dusjagr over on Hacketeria, who reports success using a 100 mW green laser with the lens from a cheap webcam, in the arrangement pictured here, to make a projecting microscope that will accept conventional microscope slides, and is only slightly more complicated than a Planinsic-type water-drop projector. [via Hack a Day]


Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.

  • Yuri Numerov

    And doesn’t the laser burn or destroy the samples? 100mW sounds excessive…

  • Matthew Wilson

    not if the focal point of the beam is slightly before the sample. that way as the beam expands, it also, very efficeintly, (running off of around 2.00 volts instead of 125.) displays an image.