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Old 07-01-2008, 07:34 PM #1
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Default Solar Powered Death Ray

Hey guys, my evil schemes such as this one has led me to your awesome site, and I'd like to run this idea by you.

An array of a dozen or so full size (3' x 5') mirrors is set up, in a semi circle to all reflect the sun to a square in the center of the circle.

At the center is a box. The top of the box will be a mirror that will direct the light down, onto a fresnel lens of the appropriate size. This will direct the light into some collimating optics. These optics could be made of something other than glass, like diamonds or some mineral so they could withstand the tremendous heat.

Hopefully from here you would be able to redirect the light to a target that you want to UNLEASH DESTRUCTION upon.

I know next to nothing about optics- do you guys think this would work?


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Old 07-01-2008, 07:38 PM #2
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Default Re: Solar Powered Death Ray

Heres one...
http://www.instructables.com/id/Gian...iment-in-Opti/
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Old 07-01-2008, 07:46 PM #3
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Default Re: Solar Powered Death Ray

Quote:
Originally Posted by Maelstrom
Heres one...
It's interesting to think of sunlight in terms of 1,000 watts per sq. meter; imagine putting out 13,000 watts of power in a concentrated beam! ;D
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Old 07-02-2008, 11:41 AM #4
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Default Re: Solar Powered Death Ray

http://dsc.discovery.com/fansites/my...plication.html
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Old 07-03-2008, 05:23 AM #5
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Default Re: Solar Powered Death Ray

Quote:
Originally Posted by keeperx
http://dsc.discovery.com/fansites/mythbusters/application/application.html
too bad that contest closed three years ago..
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Old 07-03-2008, 12:06 PM #6
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Default Re: Solar Powered Death Ray

i know it did.. thats my point..
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Old 07-03-2008, 04:28 PM #7
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Default Re: Solar Powered Death Ray

Quote:
Originally Posted by keeperx
i know it did.. thats my point..
so your point is... that it can't be done?
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Old 07-03-2008, 05:19 PM #8
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Default Re: Solar Powered Death Ray

This would look even cooler at night!
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Old 07-03-2008, 06:58 PM #9
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Default Re: Solar Powered Death Ray

it has been done.. thats my point...
more than once..


side note.. solar powered death rays are used by 9yr old boys all the time to kill ants
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Old 07-03-2008, 08:22 PM #10
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Default Re: Solar Powered Death Ray

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Originally Posted by GooeyGus
This would look even cooler at night!


Or inside your garage. Maybe with enough smoke you'd be able to see the beam!!!
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Old 07-03-2008, 09:23 PM #11
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Default Re: Solar Powered Death Ray

how'bout collimating the death ray and direct it with a mirror ? is this possible (see attachments)
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Solar Powered Death Ray-mmmmm.jpg  
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Old 07-03-2008, 10:08 PM #12
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Default Re: Solar Powered Death Ray

Sorry Helio, that's not possible because sunlight isn't coherent. You couldn't keep it to stay focused like that, but still nice diagram anyway.
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Old 07-04-2008, 02:53 AM #13
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Default Re: Solar Powered Death Ray

How about a 4' X 3' fresnel lens?!?! They claim they were able to melt pennies with it.... Believe me, if I still lived in Southern California I'd surely have to have one of these....the sunlight is as intense as ever in the southwest US (probably same way in Australia - if you can't get a laser legally I suppose something like this might satisfy your burning urge...)

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Old 07-04-2008, 06:22 PM #14
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Default Re: Solar Powered Death Ray

Quote:
Originally Posted by keeperx
it has been done.. thats my point...
more than once..


side note.. solar powered death rays are used by 9yr old boys all the time to kill ants
[third person] And a 12 year old was solving our ant problem with his laser [/third person] * [smiley=engel017.gif]
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Old 07-04-2008, 09:12 PM #15
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Default Re: Solar Powered Death Ray

I have one of those lenses from an OHP ( over head projector ) and it burns like hell, if I had one twice the size I probably could melt a penny

Its from the bit you place the paper on
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Old 07-04-2008, 10:13 PM #16
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Default Re: Solar Powered Death Ray

use the sun to pump a yag rod. 8-)

edit: use Nd:Cr:YAG.
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