Old 12-04-2014, 09:59 PM #1
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Lightbulb Advice on laser ocean project

i want to shine light through water that ripples and waves in time to music to create an organic music visualizer on the other side. I'm going to use a hexagonal grid of lasers as the light source to create a kind of stormy laser sea.

So first the body of the laser needs to be of thin as possible so they can be packed together, but also the beam be quite wide so the dots can be noticeably refracted by the water. They don't need to be powerful as they'll be many and t'd be good if they were connected to a main power box instead of batteries so i wouldn't have to press a hundred on switches every time.

Ideally they'd be blue and purple but if green or red are easiest to work with
that'd look pretty awesome too. If any one knows what kind of lasers to look for that be great and if someone is willing to build a little rig that'd be blessing
and i'd be willing to part with 50 or so after i get some christmas money for the materials and effort.

Thankyou Laser people!


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Old 12-04-2014, 10:27 PM #2
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Talking Re: Advice on laser ocean project

Some lasers, such as can be focusable, and some also have rectangular spots instead of round ones, so the beam can be adjusted to the depth and surface area you wanted.

I have a blue (445 nm) for example with both of those features, so I can make the blue rectangle very small, like a grain of rice, or, very large, more like a flashlight beam (A rectangular one at least...), or anything in between.
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Old 12-05-2014, 05:00 AM #3
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Default Re: Advice on laser ocean project

Are you versed in laser safety? Blue and Purple are usually pretty strong, ie; will blind you permanently.

Is the laser going through or reflecting off the surface of the water? You won't see any movement going through the water.

Lower powered reds are pretty inexpensive on the Bay...

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