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Is My Laser Projector Safe?

A

AliceCooper

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MarioMaster said:
I wouldn't want to be crowd scanned with a laser of any power.

This unit uses stepper motors which don't have as smooth or precise operation as a galvo system and probably runs at quite low speeds, increasing the chances for eye damage.

I damaged a few pixels in my Samsung camera with a ~70mW RGY system a few years ago being scanned at 20KPPS to give you an idea.
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That must not of been defracted at all. I plan to have it strobing as fast as possible (bout 4 strobes a second) and moving as fast as it can (which is slow). And since it will be mounted up high pointing straight down, I don't see how anyone could be injured.
 





A

AliceCooper

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kiyoukan said:
Thats the problems with lasers by the time you see the damage its to late.
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:thinking: hmm. Guess I should've done more research before getting myself into all of this. Kind of regretting buying all my equipment haha. Thought it wouldn't be this dangerous considering my local bowling alley has a laser that defracts all over the room and it does hit your eyes. It is just as slow moving as my mini projector. Idk if I could tell how much it is defracted maybe I could find a way to find out how much punch each little beam packs.
 
kiyoukan

kiyoukan

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diffraction helps and china sellers call them legal but they are not. if you use one that is under 100mw with a diffraction its decently safe. Enjoy lasers just know alot of clubs and places use them illegal there are legal laser setups sold at American DJ i think but the price is crazy.
 
A

AliceCooper

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kiyoukan said:
diffraction helps and china sellers call them legal but they are not. if you use one that is under 100mw with a diffraction its decently safe. Enjoy lasers just know alot of clubs and places use them illegal there are legal laser setups sold at American DJ i think but the price is crazy.
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Yeah that place has insane prices. I've been looking at zlaserlights for stuff. This projector has a 50mw green and 100mw red that go through a diffraction lense, then those beams go through another diffraction lense. So I guess it could be considered "decently safe"?
 
kiyoukan

kiyoukan

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the best way to find that out it to get it and measure the brightest beam and if its over 10mw its not safe.
 
A

AliceCooper

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kiyoukan said:
the best way to find that out it to get it and measure the brightest beam and if its over 10mw its not safe.
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Is there a cheap way to do this? I was trying to find a formula for how much the intensity of the laser was decreased via difraction gratings, but it got extremely complex really fast. Is there a way I can dim them with some house hold appliances or something I could grab from the store such as a clouded lense?
 
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kiyoukan

kiyoukan

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get a LPM, or find a member near you and you guys meet up and test the unit.
But there is no other easy way to test.
 
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