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Old 03-06-2017, 09:37 AM #1
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Question Info optics for a smaller beam at 5m

Hello everyone!

I'm new in the environment and do not have much experience in optical ...

I purchased a nubm44 diode and would like to install the optical order to have a small beam 4/5m meters and not lose power.

I saw the Cylindrical lenses (2 and 3X), but the beam could be about 20mm to 5m, i wanted something smaller, around 5mm or less (i'm dreamer?).

What do you recommend optics?


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Old 03-06-2017, 10:08 AM #2
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Default Re: Info optics for a smaller beam at 5m

Hello! <--link, not saying hello.

Please don't say that is the laser you are planning to use for the above thread.
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Old 03-06-2017, 10:32 AM #3
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Default Re: Info optics for a smaller beam at 5m

Very bad idea. If you use that diode, your house will be on fire and you will be blind in about ten seconds. Go back and do a search on safety, and the dangers of a NUBM44 diode.
Ed
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Old 03-06-2017, 10:48 AM #4
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Default Re: Info optics for a smaller beam at 5m

Quote:
Originally Posted by Antharak View Post
Very bad idea. If you use that diode, your house will be on fire and you will be blind in about ten seconds. Go back and do a search on safety, and the dangers of a NUBM44 diode.
Ed
is really dangerous?

I use safety glasses with 20% light transmission with potection from 190-540nm and 800-2000nm wave lenght.

it's not enough?
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Old 03-06-2017, 10:50 AM #5
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Default Re: Info optics for a smaller beam at 5m

Yes the NUBM44 is really dangerous. You need OD 5 goggles.
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Old 03-06-2017, 10:53 AM #6
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Default Re: Info optics for a smaller beam at 5m

Quote:
Originally Posted by CurtisOliver View Post
Yes the NUBM44 is really dangerous. You need OD 5 goggles.
Where i can find it?
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Old 03-06-2017, 10:57 AM #7
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Default Re: Info optics for a smaller beam at 5m

Eagle PairŪ 190-540nm & 800-1700nm OD5 Laser Safety Goggles

Use LPF445 for a 10% member discount if you really want to go ahead. You can't put a price on your eyesight.
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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

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.
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Last edited by CurtisOliver; 03-06-2017 at 10:57 AM.
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Old 03-06-2017, 11:53 AM #8
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Default Re: Info optics for a smaller beam at 5m

Thank you!
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Old 03-06-2017, 03:15 PM #9
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Default Re: Info optics for a smaller beam at 5m

Yeah hurry, the M44 diode is a demon in a 9mm can
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Old 03-06-2017, 06:54 PM #10
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Default Re: Info optics for a smaller beam at 5m

Not a good choice for your application many reasons among them: poor beam quality/wide beam/high divergence as you pointed out.

Divergence on these high power multimode diodes is terrible - there are things you can do to improve them but you have to make a trade somewhere, either for output power or beam diameter (or both!).

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Old 03-06-2017, 06:56 PM #11
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Default Re: Info optics for a smaller beam at 5m

Well we already pointed out that the application is not a good choice either.
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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

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.
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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.
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Last edited by CurtisOliver; 03-06-2017 at 06:56 PM.
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Old 03-07-2017, 09:46 AM #12
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Default Re: Info optics for a smaller beam at 5m

Quote:
Originally Posted by CurtisOliver View Post
Eagle PairŪ 190-540nm & 800-1700nm OD5 Laser Safety Goggles

Use LPF445 for a 10% member discount if you really want to go ahead. You can't put a price on your eyesight.
Purchased
Thank you
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Old 03-07-2017, 10:27 AM #13
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Default Re: Info optics for a smaller beam at 5m

You can take a large PCX lens and put it in front of a NUBM44 to focus the beam down to a tiny spot 15 feet away. I did this with a 7 inch diameter PCX lens that had a 18 inch focal length.
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