Old 04-02-2016, 02:01 PM #1
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Default how to make a green 150mw 532nm safer?

im working on a robot project for a friend.he wants me to install the laser behind a hole in the robots face.the robots head moves and it makes sound using a remote control.its 8ft tall. my question is he wants to use this at his backyard parties. how can i use this laser and keep it safe from any bouncing beams of if it shoots into a neighbors yard? can i use a filter or flasher so it turns on and off every second? i dont want anyone looking direct into the beam and thought of diffusing it somehow so its safe.any ideas would be great.thank you.


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Old 04-02-2016, 02:09 PM #2
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Default Re: how to make a green 150mw 532nm safer?

Why does it have to be 150 mw?
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Old 04-02-2016, 02:49 PM #3
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Default Re: how to make a green 150mw 532nm safer?

I would just use a weaker laser 150mW is way too strong.
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Old 04-02-2016, 03:10 PM #4
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Default Re: how to make a green 150mw 532nm safer?

Tell your friend it's a bad idea or buy a laser that is <5mW. Of course then that won't be very impressive. Oh and most lasers labeled as <5mW are often much more powerful. It's just a bad idea unless you can be sure no one gets hit in the face with the laser.

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Old 04-02-2016, 03:51 PM #5
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Default Re: how to make a green 150mw 532nm safer?

Your best bet would be mounting one of these on the robot. These are designed to diffuse the light and make it safer.
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Old 04-02-2016, 03:54 PM #6
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Default Re: how to make a green 150mw 532nm safer?

It would help if you had a party on a foggy night, or if you acquired a fog machine. While 532nm is almost on the peak on human vision(during daytime), this drops to around ~507nm during nighttime, which dosen't make too much of a difference for 532nm as it's pretty much in the middle.

5mW would appear semi-bright in the dark but having a fog machine or anything similar would help enhance the beam(if you are interested in that).

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Old 04-03-2016, 01:44 AM #7
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Default Re: how to make a green 150mw 532nm safer?

Need more info before I can say your friend's project is dangerous and unnecessary. Is this a light show? Is this something he wants to pop balloons and show off? If it can pop balloons, then it's not something you want in a room full of people who can sue you.
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Old 04-03-2016, 02:45 AM #8
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Default Re: how to make a green 150mw 532nm safer?

Stick a plasma ball on top of it's head and put the laser away.
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