Thingiverse
Minimalist Laser Microscope
par fluidmovingfire
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HOW IT WORKS
Taking advantage of water's surface tension, by shining laser light through a suspended droplet (for which we use a syringe), you can achieve a projection of what's inside a water sample (ideally, stagnant). The suspended droplet acts as a lens and amplifies the image. Instead of having a blurry shadow, which you would obtain by using just a regular light source; in this case, the projection will be relatively clear, due to the nature of laser light. Here, we use an easily-sourced class III laser (a cat training laser pointer will do!). Photons emitted by a laser are coherently in phase, such that refraction via this light source produces a higher-fidelity projection. This is the principle behind our laser microscope. Make sure you NEVER look directly into the laser source! Long-term exposure can damage your eyes, better be safe than sorry! This build will avoid part of this risk by housing the source and diffracting the light.
BUILDING YOUR TOOL!
These devices can b
Taking advantage of water's surface tension, by shining laser light through a suspended droplet (for which we use a syringe), you can achieve a projection of what's inside a water sample (ideally, stagnant). The suspended droplet acts as a lens and amplifies the image. Instead of having a blurry shadow, which you would obtain by using just a regular light source; in this case, the projection will be relatively clear, due to the nature of laser light. Here, we use an easily-sourced class III laser (a cat training laser pointer will do!). Photons emitted by a laser are coherently in phase, such that refraction via this light source produces a higher-fidelity projection. This is the principle behind our laser microscope. Make sure you NEVER look directly into the laser source! Long-term exposure can damage your eyes, better be safe than sorry! This build will avoid part of this risk by housing the source and diffracting the light.
BUILDING YOUR TOOL!
These devices can b
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