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| What Kind Of Laser Do I Need ? (Page 1/2) |
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cliffw
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NOV 26, 11:19 AM
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I bought a six foot skeleton for Halloween. I want to put laser lights in it as it's eyes, but want one which will illuminate the whole laser path where it is looking. Not a laser pointer.
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1985 Fiero GT
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NOV 26, 04:36 PM
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So you want it to look like 2 beams of light coming from the eyes, illuminated the whole length? The light reflects off "things"in the air like mist, fog, unless the laser is really powerful and is reflecting or burning things present in still/not foggy air. Make sure that it isn't pointed anywhere that eyes can get damaged, and I'm pretty sure it's illegal to point in the sky, so that kindof rules out just about everything.
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Patrick
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NOV 26, 07:46 PM
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Russian ravers blinded by lasers
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Party-goers at illegal bash suffer 80 percent sight loss
17th July 2008
Twelve revellers have been blinded by lasers at an illegal rave: the Aquamarine Open Air Festival in Kirzhach, Russia.
The ravers were taken to hospital complaining of substantial sight loss, with some reporting as much as 80 per cent blindness. Another 17 ravers reported vision problems after the event.
Lasers that were meant to shine into the sky were reflected off the roof of a giant tent into revellers’ eyes after the rave was moved indoors so attendees could avoid the rain.
Elena Grishina of the Moscow Opthalmological Hospital told NTV that the problems are the result of a “deterioration in the sharpness of the eyesight, not a burn”.
It’s currently uncertain whether the damage is permanent, although it has been reported that some of those affected are planning to take legal action against the organisers, who did not possess the correct permits to hold the event.
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olejoedad
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NOV 27, 09:30 AM
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cliffw
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NOV 27, 12:21 PM
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| quote | Originally posted by 1985 Fiero GT:
So you want it to look like 2 beams of light coming from the eyes, illuminated the whole length? The light reflects off "things"in the air like mist, fog, unless the laser is really powerful and is reflecting or burning things present in still/not foggy air. Make sure that it isn't pointed anywhere that eyes can get damaged, and I'm pretty sure it's illegal to point in the sky, so that kind of rules out just about everything. |
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Thank you !
I know they can cause eye damage. I think that is only looking at it strait on. Like looking into the Sun. Of course I know I can not trust that all trick or treaters will know that. I would aim them almost straight down. Incidentally, my next door neighbor uses a fog machine, or dry ice, to put "fog" in the air. Also another neighbor just across the street. I do know also not to point it in the sky as to blind aircraft pilots.
| quote | Originally posted by olejoedad:
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Patience grasshopper. It's coming. I am thinking Nov 2028.
Thanks. Hmm.
A laser light causing eye injuries after being bounced off a tent,  . From your link ...
| quote | | Lasers that were meant to shine into the sky were reflected off the roof of a giant tent into revellers’ eyes after the rave was moved indoors so attendees could avoid the rain. |
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Meant to shine into the sky ?
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1985 Fiero GT
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NOV 27, 12:51 PM
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| quote | Originally posted by cliffw:
Thank you !
I know they can cause eye damage. I think that is only looking at it strait on. Like looking into the Sun. Of course I know I can not trust that all trick or treaters will know that. I would aim them almost straight down. Incidentally, my next door neighbor uses a fog machine, or dry ice, to put "fog" in the air. Also another neighbor just across the street. I do know also not to point it in the sky as to blind aircraft pilots.
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Yeah, my only thought is if they're 6 feet in the air, even pointing almost directly down, a kid "facing off"to it might get in the path of the eyes. Perhaps have some caution tape separating an area, maybe do it up like a crime scene and have the skeleton be supervising or doing whatever skeletons do at a crime scene haha, then you could keep people away from it, and maybe have the eyes less straight down, depending on the size of the taped off area.
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Patrick
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NOV 27, 05:06 PM
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| quote | Originally posted by cliffw:
A laser light causing eye injuries after being bounced off a tent,
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Keep in mind it was a rave. Maybe they hung a disco ball from the underside of the tent.
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cliffw
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DEC 05, 10:43 AM
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| quote | Originally posted by 1985 Fiero GT:
Yeah, my only thought is if they're 6 feet in the air, even pointing almost directly down, a kid "facing off"to it might get in the path of the eyes. Perhaps have some caution tape separating an area, maybe do it up like a crime scene and have the skeleton be supervising or doing whatever skeletons do at a crime scene haha, then you could keep people away from it, and maybe have the eyes less straight down, depending on the size of the taped off area. |
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Thanks.
It is a six foot tall skeleton. It can be hung. If I hung it at say a ten foot level and aimed the beams straight out, avoiding the halloweener's and aircraft, I could let the laser beams, beam over to the next block or further.
Still, what kind of laser light do I need ?
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cliffw
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DEC 05, 10:49 AM
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QUOTE]Originally posted by Patrick:
Keep in mind it was a rave. Maybe they hung a disco ball from the underside of the tent.
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I think continuous eye / beam interaction is what is required. Not that I would want to risk the safety of others.
I have looked directly at the Sun and many times it is just with my eyes, while driving or working
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1985 Fiero GT
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DEC 05, 02:12 PM
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| quote | Originally posted by cliffw:
Thanks.
It is a six foot tall skeleton. It can be hung. If I hung it at say a ten foot level and aimed the beams straight out, avoiding the halloweener's and aircraft, I could let the laser beams, beam over to the next block or further.
Still, what kind of laser light do I need ? |
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Like I said earlier, lasers reflect off things in the air, the brighter the laser, the brighter the reflection all along the beam. Also the more things in the air (steam/fog), the more the reflection. If you're talking clear still air, you'll need a really really powerful laser (probably to the point of burning whatever it's pointing at) because it will not have much to reflect off of. If you use a large fog machine or something else to put stuff in the air, then you can get some beams of light from a much less powerful laser. I don't see this being possible without extensive budget (huge fog machine) or powerful enough lasers to risk getting sued by someone for eye injury/property damage
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