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Old 03-20-2017, 02:48 AM #1
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Default Twin Blue Beams !

One of these beams is 2.2 watts and one is 7+ watts, Can you tell which is which ? lol




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Old 03-20-2017, 03:14 AM #2
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Default Re: Twin Blue Beams !

Poor door! - HM
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Old 03-20-2017, 03:26 AM #3
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Default Re: Twin Blue Beams !

Accu you need to add some green. Maybe around +1w. You'll be blown away at how sensitive your sight is to green. And its less fire prone. I have a few burn marks on my ceilings and walls from the blues. Just a nudge.
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Old 03-20-2017, 04:18 AM #4
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by Hemlock_Mike View Post
Poor door! - HM
^This lol

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Originally Posted by dden4012 View Post
Accu you need to add some green. Maybe around +1w. You'll be blown away at how sensitive your sight is to green. And its less fire prone. I have a few burn marks on my ceilings and walls from the blues. Just a nudge.
^This too. You need some red and green beams now.
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Old 03-20-2017, 05:40 AM #5
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Default Re: Twin Blue Beams !

On left is the 2.2W on the right 7+W
first the tv know the door
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Old 03-20-2017, 06:01 AM #6
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Default Re: Twin Blue Beams !

Yes Alien called it, the 7W is on the right.
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Old 03-20-2017, 06:20 AM #7
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Default Re: Twin Blue Beams !

Yup, right one is 7W. Kinda easy to spot when you have owned and played with them.
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Old 03-20-2017, 06:28 AM #8
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Default Re: Twin Blue Beams !

I thought it was on the left side
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Old 03-20-2017, 06:29 AM #9
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Default Re: Twin Blue Beams !

that's a lot of blue

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Old 03-20-2017, 07:30 AM #10
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by Hemlock_Mike View Post
Poor door! - HM
It's a good thing it's very white and it helps that it's also semi-gloss white, Much of the power is reflected onto the celling in a dispersed pattern which the camera really picks up.......

Quote:
Originally Posted by dden4012 View Post
Accu you need to add some green. Maybe around +1w. You'll be blown away at how sensitive your sight is to green. And its less fire prone. I have a few burn marks on my ceilings and walls from the blues. Just a nudge.
It's next on my list !

Quote:
Originally Posted by RedCowboy View Post
Yes Alien called it, the 7W is on the right.
Your are first with the correct answer ! 7+ on the right, the give away is it's spot appears much larger to the camera even though they are really close to the same size.....

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Old 03-20-2017, 08:29 AM #11
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Default Re: Twin Blue Beams !

Yep, it easy to spot which.
Your house may be white now, but if you are not careful your walls etc will apear grey. The amount of black spots will create a halftone bitmap effect.

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Old 03-20-2017, 09:48 AM #12
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Default Re: Twin Blue Beams !

The NUBM44 has a very wide beam compared to other blue laser diodes focused to infinity, but you could turn the beam so the thinner axis shows in the photo, unless that was the narrow side, not sure if it is wider than others too.
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Old 03-20-2017, 10:02 AM #13
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Default Re: Twin Blue Beams !

Yes, the slow axis has a relatively normal useful divergence. Although some of the beam diverges far faster than this.
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Old 03-20-2017, 11:06 AM #14
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Default Re: Twin Blue Beams !

Here's a good paper on the subject:

http://www.springer.com/cda/content/...798-p177230585
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

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Old 03-20-2017, 11:09 AM #15
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Default Re: Twin Blue Beams !

Just letting you know that you don't have any links Alaskan.

Edit: Fixed now. Very useful paper.
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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

Last edited by CurtisOliver; 03-20-2017 at 11:10 AM.
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Old 03-20-2017, 11:12 AM #16
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Default Re: Twin Blue Beams !

Looking at the diode dye, I have to be careful not to call the thin part the slow axis, I keep thinking of it that way, because the rest of the dye is so wide, but the wide side of the beam, or fast axis, actually comes from the thin portion of the diode.

Initially, the link went to my own C: drive, oops... Had to go back and get the real link.
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To shorten my signature I have moved most of my laser related web links to this forum page, the second post in that thread shows most of my builds... Alaskan's Laser Links: http://laserpointerforums.com/f44/al...ml#post1449395


Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

Useless troll fighting.
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Last edited by Alaskan; 03-20-2017 at 11:17 AM.
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