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Buy a laser (beginner)

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noobfrlaser

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Hello,

I'm new in the world of laser.
Before making the purchase, could you give me some serious sites provide me please? Because I know there are a lot of scams.

Here are two sites that I found that seem interesting:
acheterlaser.com
lucklaser.com
What do you think?

Thank you in advance.
 
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NightExplorer96

NightExplorer96

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noobfrlaser said:
Hello,

I'm new in the world of laser.
Before making the purchase, could you give me some serious sites provide me please? Because I know there are a lot of scams.

Here are two sites that I found that seem interesting:
acheterlaser.com
lucklaser.com
What do you think?

Thank you in advance.
Click to expand...

Welcome to the forums.

Checkout the thread "Complete guide to owning a laser" that will help you get started.

BTW: Are you familiar with laser safety? :undecided:
 
Blarg King

Blarg King

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Some good places to get decent lasers for a good price are o-like.com, lazerer.com, and sflasers.com.

Remember to read up on laser safety and get yourself a decent pair of safety glasses before you buy a laser over 5 mW in power!

These are the cheapest safety glasses you can buy that are certified:
Safety

50$ might seem a lot for glasses but remember you only get one set of eyes!

Good Luck and welcome to the forum :)
 
NightExplorer96

NightExplorer96

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Blarg King said:
Some good places to get decent lasers for a good price are o-like.com, lazerer.com, and sflasers.com.

Remember to read up on laser safety and get yourself a decent pair of safety glasses before you buy a laser over 5 mW in power!

These are the cheapest safety glasses you can buy that are certified:
Safety

50$ might seem a lot for glasses but remember you only get one set of eyes!

Good Luck and welcome to the forum :)
Click to expand...

o-like? Wat?
Since when is o-like reputable? :wtf:
 
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noobfrlaser

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Blarg King

Blarg King

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For safety glasses, if they are reliable 1: They will cost a lot :p 2: They will meet certain regulations. (Not really my area of expertise)

You can buy laser power meters to test the power.

Nope. Lasers of 2-3 Watts of power are totally possible and becoming more and more common.

Powerful lasers will burn. Can't have it any other way. However you can get say a 50 mW green and that will be very bright without much burning.

Some lasers can be visible many hundreds of kilometers away. It depends on the wavelength and power.
 
Blaster

Blaster

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While of course its true a high power laser will burn much easier. You can have the same powerful laser that wouldn't burn if its focus is set to a wide or even semi wide focus point on the target .If there isn't close to a small enough spot pointed at something you want to burn even if its a two watt 445nm blue it won't burn ,focus is what it comes down to.A low moderate power laser will burn better than a high power one if the spot is adjusted down to a tiny spot.Its the power density that does the burning .you can only push this practice so far down. A too low power laser 25mW as example, will not burn under normal conditions of focusing no matter how hard you try. A Two watt 445nm blue will only take a basic tweak in focus to burn really well, but set at wide focus will Not burn .It will be very bright but not burn.
 
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noobfrlaser

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Okay, thank you very much.

So these sites do not lie and there really has lasers 2/3 watts, OMG.

I wish not too dangerous laser but is highly visible both day and night and if possible, by far.

Could you advise me a power, a wavelength and a pair of glasses suitable please?
 
Blarg King

Blarg King

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Well the most visible wavelength is 532 nm (Green), But being visible in the day is a bit of a challenge. You would need at least 100 mW of power, but 300 would probably have the best chance. 300 mW isn't super dangerously powerful like 1-3 watts, but its still a danger to eyes so be careful.

For glasses, a pair of these would be plenty sufficient:
Eagle Pair® 190-540nm Standard Laser Safety Goggles

EDIT: Bear in mind though, if you choose to get a 532 nm laser, check and make sure that it has an IR filter, because 532 nm lasers also emit IR light which ISN'T blocked by anti-green safety glasses.
 
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Blackwolf

Blackwolf

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No... If we are talking a normal sunny day out side we are talking in the order of tens of watts for visible 532 beam. There was a thread awhile back that I'll have to find the link for, but I am pretty sure they calculated it to be like 100W of 532 with a visible beam at high noon.
 
Blarg King

Blarg King

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Okay so maybe re-phrase. You could see the beam indoors during the day with 300 mW
 
Blaster

Blaster

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Blarg King said:
Okay so maybe re-phrase. You could see the beam indoors during the day with 300 mW
Click to expand...
A 300mW 532nm green indoors with some normal light from outside on a normal sunny day will be quite visible, in a hall way for example ,but move it to near to an outside window on same sunny day and you will only just see a tiny fraction of the beam if your not in direct sunlight.
 
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Blarg King

Blarg King

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Okay well its as close as the guy can get while no being overly dangerous as he said.
 
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