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Old 02-16-2017, 09:03 AM #1
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Default DVD drive pointer

Dear community,

I am new to this and want to create a laser pointer with a beam visible in light. I then want to create a laser gun used for popping balloons. I have nothing but a dvd RW drive: AD-5240S. How powerful would this laser be? and how would I use it to create a laser gun?


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Old 02-16-2017, 09:08 AM #2
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Default Re: DVD drive pointer

Dear djkaye,

welcome to the forum. Please try to use search first, there is a lot of topics on this. Also search for laser safety and GET PROPER LASER SAFETY GLASSES first and before even trying to get diode out of the drive - you have just one pair of eyes.
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Last edited by Radim; 02-16-2017 at 09:08 AM.
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Old 02-16-2017, 09:18 AM #3
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Default Re: DVD drive pointer

thanks... I'll be sure to look for a good pair of laser safe goggles... just wondering what type of goggles should I look for. I don't think it should be too much more than 150Mw.... but I was thinking of 300Mw goggles just to be safe... maybe 750Mw goggles just in case I need an upgrade one day.... if that's how goggles work? Hum... I'll be sure to do more research. I don't know exactly how much goggles cost, and while I want fairly cheap one's my eyes are worth more than the price... maybe if I could get 25 one's that'd be cool.... if I need more money to spend that's fine tho. thanks for advice!
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Old 02-16-2017, 09:28 AM #4
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Default Re: DVD drive pointer

also is there anyway to lower the pointers strength? Like lower it to 100mw?
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Old 02-16-2017, 09:44 AM #5
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Default Re: DVD drive pointer

Just use search again and again. :-) You might even consider to get some portable laser instead at this powers they are not really expensive. Regarding safety glassess the Eagle pair has been discussed as good and it is in your price range. I have different glasses and goggles but use search for recommendations. Regarding glasses study optical density for a given wavelength to move forward. And I think you mean mW - miliwatts, not MW - megawatts.
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Old 02-16-2017, 10:12 AM #6
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Default Re: DVD drive pointer

I suggest you put your location on your profile, I saw you put a sign, so I know you are from the UK.

Laser goggles work by accounting of Optical Density (OD) which is logarithmic. For a laser to be considered eye-safe it must remain below 5mW. Laser goggles are essentially specialised light filters. If you have a 1000mW laser and OD 3 googles, you will end up with 1mW making it eye-safe again. 10^3 = 1000. 1000mW/1000 = 1mW

So if you have a 150mW laser, the minimum OD that you would need is OD 2. 10^2= 100. 150mW/100 = 1.5mW
I've seen on a Russian forum that the AD-5240S is roughly about 230mW. So you would need OD 2-3 for the red/ir part of the spectrum as the diode will be between 650-660nm.
A trusted retailer for laser goggles is Survival lasers. They only do OD 4 in the wavelength band you need, but they will protect you high up into the Class IV territory. Remember, never use safety goggles with lasers outside of its specified wavelength bands.
They are slightly more expensive than 25 but you can't really put a price on your eyesight, and they will do any red laser you may get in the future. Stay safe and have fun.

Edit: I see Radim just got in there before me with the Eagle pairs. And don't forget that as a member you can get 10% off with the code LPF445.
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If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

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Sanwu are known to be very high quality and every newcomer should check them out.
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Bang good is a good source for many electrical items and are often cheap and reliable.
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Last edited by CurtisOliver; 02-16-2017 at 10:19 AM.
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Old 02-16-2017, 10:41 AM #7
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Default Re: DVD drive pointer

wait If I make a driver can I tune it to be less powerful... I want it just powerful enough to pop a balloon.
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Old 02-16-2017, 10:56 AM #8
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Default Re: DVD drive pointer

Quote:
Originally Posted by djkaye View Post
wait If I make a driver can I tune it to be less powerful... I want it just powerful enough to pop a balloon.
It is hard to estimate safe power without proper LPM (device for measuring power of lasers) and if it pops balloon, it might pop your retinas as well. In addition you have to get above lasing treshold for that particular diode otherwise you won't get laser light.

It will probably pop just some colors of balloons as well or you will need to put a black dot with the marker on it.

Edit: Also I think you will get bored from popping balloons soon... There are much more stuff to do with high power lasers.
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"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Ordered & shipped:
532 nm | 1.4+ W | Optotronics RPL-II

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 02-16-2017 at 11:01 AM.
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Old 02-16-2017, 11:14 AM #9
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Default Re: DVD drive pointer

I will still not shine it in eyes and safety glasses OC. I just would want to tune it down so it can't light matches or make holes in plastic :P
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Old 02-16-2017, 11:30 AM #10
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Default Re: DVD drive pointer

Quote:
Originally Posted by djkaye View Post
I will still not shine it in eyes and safety glasses OC. I just would want to tune it down so it can't light matches or make holes in plastic :P
When I was beginner with lasers (I think I can say I have a little experience now), I told myself I'll be very carefull with lasers. But untill you get more experience with laser beam of high power you cannot even imagine how dangerous it is - this is what I realized later.

Remeber the speed of light and there are so many reflective objects of too many shapes to estimate direction of potential reflection, you have no time to react untill it is too late in case of accident - and with lack of respect to lasers it will come sooner or later. Remember also you might loose your attention due to excitment from your new laser and the beam might go somewhere you don't want. Of course I do not think you will be shining to your (or anyone's) eyes intentionally even with glasses on. But take laser safety very seriously. Lasers are safe only if you treat them safe.

BTW: Oliver has explained you some basics of the protection of laser glasses already.

Edit: I think you will not get above lasing treshold without reaching 5 mW, which is the last relatively safe power level. The diode might emit some light, but it won't be a laser light untill you reach the lasing treshold. If some more experienced member knows more, please post. And also 5 mW will definitelly not do what you want.
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Right now -> Enjoying Colours of Ostrava music festival.
__________________

"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Ordered & shipped:
532 nm | 1.4+ W | Optotronics RPL-II

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 02-16-2017 at 11:35 AM.
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Old 02-16-2017, 12:51 PM #11
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Default Re: DVD drive pointer

Quote:
Originally Posted by Radim View Post
#Lasers are safe only if you treat them safe.

Edit: I think you will not get above lasing treshold without reaching 5 mW, which is the last relatively safe power level.
Two very good points there Radim. The first is self-explanatory. And yes the threshold is likely to exceed 5mW.

You are basically wanting an eye-safe burner. That is a bit of a oxymoron. A burning laser that won't burn/damage your eyes. You need power to burn, and 5mW simply won't cut it. Your eyes are precious, so do invest in goggles if you want to mess with powerful lasers.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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