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Thread: Using lasers in display

  1. #1
    This space for rent. Al in Raleigh's Avatar
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    Default Using lasers in display

    Holy moly. I did some research into using a laser or two into my display, and I came away saying forget it. I plan to do a presentation on it for a TASL meeting as a general knowledge thing. What got me during the research was how I would need to get 2 government agencies blessing due to the fact that I am within 10 nautical miles of an airport. Even as much as that, had I been outside the 10 nautical mile zone, I am certain that the DMX laser that I wanted would violate the government's regulations. Crap.

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    Trying to behave here-NOT John's Avatar
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    Default Re: Using lasers in display

    A few years ago, I bought a level at Harbor Freightthat had a laser built into the end of it. Playing around with it one night I was going to shine it into the tree tops and stuff.

    As a General Aviation Pilot, and living within two miles of the airport, I first logged into the radar at the airport to see if any aircraft were on approach since the current (that night) active runway 20 has its approach path over my house, and took my handheld two-way avaiation radio out with me (to monitor the tower for departures).

    Everything seemed to be clear of all traffic, so I started lighting up the tree tops and also trying to "zap" some bats. Imagine my surprise when after about two or three minutes I heard the tower making a broadcast to all aircraft that they had spotted laser activity at certain cordinates. Duh, that's where I was. Talk about immediate shutdown and run back into the house!

    And that was with a "legal" low power laser operating off of 1 AAA battery.

    Airports have no sense of humor when lasers are spotted.
    John (The Mascot)
    www.tennholidays.com

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    xLights or BUST in 2018 kidcole's Avatar
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    Default Re: Using lasers in display

    Darn ! I was hoping to add a red-green Galaxian to my show as driveway coverage one of these days. Particularly once I get DMX control and add jy DJ lights tot eh Christmas show. Here's a Galaxian link. They make single laser versions too .. but the twin is really nice ..

    http://cgi.ebay.com/AMERICAN-DJ-GALA...item483c061b2b

    Is this one too powerful to use outside ?
    Thanks,

    Denny Cole
    https://www.facebook.com/groups/Cole...ristmasLights/

    I Went Static in 2017. FINALLY Moving to Xlights for 2018 !

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  4. #4
    This space for rent. Al in Raleigh's Avatar
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    Default Re: Using lasers in display

    Yes, that is the one I wanted. It has a 30mW and 80mW laser. Even if you point it at the ground the 80mW is a class 3 which is dangerous to eyes. It will do damage and the person will not know it. The risk outweighs the novelty for me. I planned on pointing it at my house or rather "terminating the beam into a structure" to hinder shining it at the sky. The windows on my house are 87% reflective to UV light with is near in frequency to the red laser. Which with the angle of incidence, I would transmit 87% of the energy to the heavens resulting in the 30mW laser being a problem for 10 miles of so. Even my old single pane windows would reflect an unacceptable amount of energy. I thought about covering the windows and running the show then I thought about covering the stupid windows each night on a front of the house and I said no way. Bummer.

  5. #5
    Got Nose ? davetv102's Avatar
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    Default Re: Using lasers in display

    Hey Al, you could always come over to the DIY darkside and make yourself a couple of these.

    http://www.garageofevilnetwork.com/p...-vortex-how-to

    Once you used them for Haloween you could change the laser colors to red and green for Christmas.

    All completely legal according to Walter, or was it Brad, well one of them anyway.......
    And on the 8th day, God created Christmas lights.

    240 Channels of DMX

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