Cool Laser Tricks!

by 3zuli in Circuits > Lasers

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Cool Laser Tricks!

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This is a compilation of my favourite laser tricks, that I like to show to my friends when they come to my place.
I hope you will like it and get some new ideas... pls vote 5 stars :)

Before We Start...

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ALWAYS WEAR EYE PROTECTION!!!!

Mirrors

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I guess I don't need to describe what to do with these... just use your imagination and make the best laser trap ever! :D
I found nice 1cm mirrors (not-first surface) with some adhesive thing on their back side (useful for the laser traps :D)

no, I'm just kidding, mirrors can make some cool effects!


Motors

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Motors are most commonly for making spirographs. The simplest one is using 2 motors, but there are also 3 and 4 motor spirographs that make WAY cooler effects.
This is my ghetto 2 (the 3rd motor broke off) spiro, built on some scrap wood piece using lot of hot glue.

Diffraction Grating

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You probably know this one...

Crystal Balls

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These will cause a lot of diffractions when a laser is shined through them.

Slow-rotating Motors

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But who wants to spin the shiny things form previous step manually... Let's use some slow motors to do this!


Another cool effect is to slightly melt a CD or DVD and attach it to slow motor. Makes best effect with a white (combined from red, green and blue lasers) or multiline Argon laser.
http://www.youtube.com/watch?v=hP-OoKwWm88

Optics From Sleds

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Always when I got some old CD or DVD drive, I completely rip all the optics from it (even if the diode is useless). Sometimes I get some pretty interesting optics
Here I'm showing the diffraction gratings from various sleds (I can recommend the PHR-803T sled, there are 2 of them)

Lumia Wheel

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Well, in my case its more like "LUMIA DOOR"... but you get  the point LOL
This effect is made using some kind of textured glass which is cut into a circle and slowly rotated in front of the laser.

LCD Takedown!

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If you disassemble the color LCD module from old cellphone, you'll get few interesting things: 2 (or more) fresnel lenses (which are great as line generator optics), some kind of plastic light diffuser and 2 polarization filters (these are hard to get, you must rip these off from the glass part of LCD). I'm showing these in the following video: