DropoScope

DroposCcope is a simple microscope wich use drop of water as a lens. Image of organisms inside a water drop is projected on a screen using the laser.

The in-depth explanation you can find in this paper written by Gorazd Planinsic

1. Laser pointer
2. 3mm plywood, MDF or plastic for laser cutting.
3. Syringe
4. M3 10mm x 3mm bolts - 13 pcs.
5. M4 10mm x 4mm bolts - 3 psc.
6. Rubber band

Cut the case provided in .dxf drawing using the laser cutter.

Rubber band will provide tension to laser pointer and make it move together with adjustment ring.

Add some dirty water into the syringe. Push it out to form water drop. Adjust laser pointer into the drop by using adjustment ring. Turn off the light :) On the screen or white wall you will see magnified image of things inside the water drop.