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Old 06-19-2017, 07:12 AM #1
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Default Affordable laser line module that casts a clearly visible line at ~5 m range?

Hi folks. New member here, barely know anything about lasers and especially about what's available and what costs how much, so please bear with me.

I want a laser line module (or a point module with a line attachment) that would be visible outdoors during the day (or at least evening) in the shade at a distance of 5 m. I reckon I need a green laser due to the human eye sensitivity curve peaking in the green area.

Is this even feasible? What kind of power do I need?

I've purchased a pair of 5 mW red line modules, thinking to myself: "Surely this will do, because IT'S A LASER!". I have received them today and am immensely disappointed, they are unbelievably feeble. So now I'm aware of the challenges behind this task



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Old 06-19-2017, 07:19 AM #2
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Yes you are correct. Green laser modules would be best for this use. 5m isn't too great a distance so should be feasible.
You will most probably need 50mW+ to get a reasonable line in light conditions.
Can I ask why you want this? Also welcome to the forum.
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Optlasers RGB Modules

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Optotronics RPL 532nm DPSS Portables

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Old 06-19-2017, 07:40 AM #3
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Thank you!

I want to devise some kind of a parking guidance system, like landing lights on an airfield. I have a relatively narrow garage entrance and while I can now reliably enter it with no casualties (after a year of tears and suffering), I still find it difficult to align my car parallel to the walls. So I wanted to project some guide lines along the entrance approach to align the car by.

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Old 06-19-2017, 07:52 AM #4
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Ok, as long as the beams are not going to be on public property or is going to have people intercepting the beams then this isn't a problem. I'm wondering whether or not their is a better alternative to this however. An example could be reflective verge posts that you can use to align your vehicle, and they don't require power.
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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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Old 06-19-2017, 08:10 AM #5
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

It is on public property, sort of, which is why I cannot place any physical objects too far outside my garage gate. There is no law against casting light on the ground in my country, on the other hand. As for people - that is a valid concern, but not a problem in this case. And I think it should be possible to position and partially screen the module in such a way that it would be impossible for a by-stander to look directly into the aperture unintentionally.

I'm curious, though: will glancing briefly into the aperture of a green 50 mW laser inflict permanent sight damage?

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Old 06-19-2017, 08:10 AM #6
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

" MAY " I think that you MAY....BE you need to leave ! "

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Old 06-19-2017, 08:23 AM #7
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Quote:
Originally Posted by VioletGiraffe View Post
It is on public property, sort of, which is why I cannot place any physical objects too far outside my garage gate. There is no law against casting light on the ground in my country, on the other hand. As for people - that is a valid concern, but not a problem in this case. And I think it should be possible to position and partially screen the module in such a way that it would be impossible for a by-stander to look directly into the aperture unintentionally.

I'm curious, though: will glancing briefly into the aperture of a green 50 mW laser inflict permanent sight damage?
Where are you from?
Also there may be no specific law against it, but if you cause problems with the laser then there will be some issues. I'll give a true but ridiculous example. There is no specific law about be owning and using kitchen knifes, but if I start placing them as markers outside, then you can imagine that this would cause a problem.

Anything over 5mW is regarded as a danger to eyesight. So having a 50mW+ beam projected away from your property may not be the best idea. After all, if your not allowed to place anything physical down, then projecting hazardous light down will also be disallowed. Sorry, but have to be honest. In my opinion 50-100mW is not that dangerous, but it is a Class 3B none the less. Spread out into a line and the danger also decreases. The concern is if someone complains or gets hurt. Then you will have to answer why you have Class 3B's shining out of your property.

3D?
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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




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Old 06-19-2017, 08:42 AM #8
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Quote:
Originally Posted by CurtisOliver View Post
Where are you from?
Also there may be no specific law against it, but if you cause problems with the laser then there will be some issues. I'll give a true but ridiculous example. There is no specific law about be owning and using kitchen knifes, but if I start placing them as markers outside, then you can imagine that this would cause a problem.

Anything over 5mW is regarded as a danger to eyesight. So having a 50mW+ beam projected away from your property may not be the best idea. After all, if your not allowed to place anything physical down, then projecting hazardous light down will also be disallowed. Sorry, but have to be honest. In my opinion 50-100mW is not that dangerous, but it is a Class 3B none the less. Spread out into a line and the danger also decreases. The concern is if someone complains or gets hurt. Then you will have to answer why you have Class 3B's shining out of your property.

3D?
I was referring to the MAY...your woman policy in London ! who made that damage to the hotel up in flames!
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Old 06-19-2017, 08:46 AM #9
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Well yes, no one is particularly happy with her. But this was the also the councils responsibility. Such a terrible disaster that could of been averted.
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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.
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Old 06-19-2017, 08:50 AM #10
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

MAY .....MAY...BE CHANGE AIR IMMEDIATLY -----------> [ E X I T ] follow the lines on the floor please madam !
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Old 06-19-2017, 08:54 AM #11
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Thanks, appreciate your systemic approach to the problem. I'm certain there will be no legal problem: this is a closed area with a bunch of garages that only the owners of these garages have access to. Not to mention that the system won't be operated unattended - obviously I will turn it on while parking and off as soon as I'm done.
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Old 06-19-2017, 09:03 AM #12
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

You're welcome. I never want to give advice that leads to problems with authorities. As long as this is the case then I don't see a problem.
Can I get you to add your location to your profile, as it helps us out when giving advice.
I'm getting a gist that you are also from the UK, but I could be wrong.
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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




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Old 06-19-2017, 09:19 AM #13
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

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Originally Posted by CurtisOliver View Post
I'm getting a gist that you are also from the UK, but I could be wrong.
I'm from Ukraine. I'll take your guess as a compliment to my English skill, ha-ha

I can see some 50 mW green lasers for 10-20 bucks. Is it reasonable to expect them to actually produce that power in this price range?

Last edited by VioletGiraffe; 06-19-2017 at 09:21 AM.
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Old 06-19-2017, 09:26 AM #14
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Ukraine. Your English is very good. By the style I could guess European at least, but I honestly though UK.
Well, you can probably find cheaper but I found this to start you off.
532nm 50mw Line Laser Module Locator for Cutting 18x75mm + AC Adapter + Mount | eBay

Edit: The power stated can be false. Depending on the type they can often be lower or higher than stated.
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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.
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Last edited by CurtisOliver; 06-19-2017 at 09:28 AM.
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Old 06-19-2017, 09:33 AM #15
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

VioletGiraffe, here is another source from Apinex, but they are quite expensive.
Green Line Laser Modules
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405nm Solarstorm S3 (1.09W) • W/L Sonar (264mW)
405nm Custom JETLASERS Ti-B (1.08W)

445nm Build "Ole Blue" (2.8W+)
445nm 1.3W JETLASERS PL-E (1.5W)

450nm Custom JETLASERS Ti-B (327mW)
462nm Solarforce T2 (2.1W)-link-
465nm 1.4mW JETLASERS Mini (1.64mW)
467nm "Maraxus" (2.3W)
470nm "Silver Bullet"
515nm 30mW Ehgemus titanium (84mW)
520nm S/S build (250mW) •50mW JETLASERS Ti-B (73mW)
520nm Ehgemus Custom (1.45W) •Coleman Jr. (234mW)
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532nm 1.5W Goldenstar lab (3W)
532nm 500mW JETLASERS PL-E (754mW)
532nm 100mW JETLASERS Ti-B (161mW)
532nm 5mW "Eclipse" mints tin (54mW)

589nm 80mW CNI PGL-III-C (154mW)
589nm 50mW Dragonlasers Spartan (124mW)

594nm L/G Rigel-6 "LPF Anniv. Ed." (6.7mW)
635nm 20mW JETLASERS Ti (30mW)
638nm Custom JETLASERS Ti-B (232mW)-link-
638nm "Coleman Special" (260mW)
638nm Build in sinner's "MS-SSW Stubby" (1.25W)
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Old 06-19-2017, 09:34 AM #16
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Default Re: Affordable laser line module that casts a clearly visible line at ~5 m range?

Aren't they just.
__________________
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




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Wavelength to RGB Converter
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