Protect Your Home with Laserbeams

[electron]

A fun video showing how you can build a cheap ($20) laser based security system. Obviously, don't use this in mission critical applications, but since some people like tinkering, I figured I would post this here.

 

[AutomatedOutlet]

A fun video showing how you can build a cheap ($20) laser based security system. Obviously, don't use this in mission critical applications, but since some people like tinkering, I figured I would post this here.

I think that's pretty cool!

 

[beelzerob]

But how do you mount them to the shark's head?.....

 

[ASIHome]

But how do you mount them to the shark's head?.....

Frickin' Laser Beams

 

[politics123]

But how do you mount them to the shark's head?.....

Frickin' Laser Beams

So, why not just aim this at the moon and get real-time distance measurements that can be updated in homeseer. That way, we can automate controls based on where the moon is (you know, for tides and things) :lol:

 

[RandyKnight]

But how do you mount them to the shark's head?.....

Frickin' Laser Beams

So, why not just aim this at the moon and get real-time distance measurements that can be updated in homeseer. That way, we can automate controls based on where the moon is (you know, for tides and things) :lol:

I forsee a servo mounted laster that automatically points at the moon based on lat/long and the date. I like it!

 

[gregking]

Ya know, I have just one simple request...

But how do you mount them to the shark's head?.....

Frickin' Laser Beams

 

[beelzerob]

Ya know, I have just one simple request...

But how do you mount them to the shark's head?.....

Frickin' Laser Beams

Geez, look what I've started...now I wanna see it again!

 

[IVB]

Bah. They're no match for my Ill Tempered Mutated Sea Bass!

 

[BraveSirRobbin]

Bah. They're no match for my Ill Tempered Mutated Sea Bass!

or the majestic Moose!

A Moose once bit my sister ...

 

[Ranger Digital]

brave BAD MOOSE! LOL.

OK, cool diy project. But isnt there a cheap ready to use version that we could use in a production environment?

 

[Quixote_1]

Neat. I thought of that a while ago for another purpose, but I need to figure out how to split the laser into two beams without having to use two lasers. I was thinking of fiber optics, or possibly some sort of prisms. Anyone have any good ideas?

 

[robolo]

Neat. I thought of that a while ago for another purpose, but I need to figure out how to split the laser into two beams without having to use two lasers. I was thinking of fiber optics, or possibly some sort of prisms. Anyone have any good ideas?

Use a beam splitting mirror like is used to produce holograms. Essentially it is a semitransparent mirror that allows half the beam to pass through and the other half is refected off to the side. Here is one for sale on ebay for $9.

I once saw a killer rabbit with big pointy nasty teeth

 

[ASIHome]

I once saw a killer rabbit with big pointy nasty teeth

Brother Maynard!
Yes Sire?
Bring forth the Holy Hand Grenade!

 

[Quixote_1]

Neat. I thought of that a while ago for another purpose, but I need to figure out how to split the laser into two beams without having to use two lasers. I was thinking of fiber optics, or possibly some sort of prisms. Anyone have any good ideas?

Use a beam splitting mirror like is used to produce holograms. Essentially it is a semitransparent mirror that allows half the beam to pass through and the other half is refected off to the side. Here is one for sale on ebay for $9.

Thanks Robolo! That's a great idea -- perfect, in fact! I'm going to experiment with some one-way glass that I have lying around to see if that works, and if so, how small I can make my device.