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Old 09-09-2017, 08:42 PM #1
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Default Has anybody messed with the new 2.5W G85 yet?

The ML562G85 came out to us earlier this year, and a few of you posted about it. I know it's a dual emitter multimode diode, but has anybody at least tried to work with one yet? I keep seeing them pop up at fairly reasonable prices, so I figured somebody may have snagged one.

Even laserlands sells them now: https://www.laserlands.net/laser-dio...562g85-01.html

Edit: For clarity, it might be the same as the dual/tri beam G84. What I want to know is if anybody's gotten their hands on one sold as "G85".


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Old 09-09-2017, 11:44 PM #2
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Default Re: Has anybody messed with the new 2.5W Mits diode yet?

I have the tri-beam diode, the G84. I think Podo has made a thread somewhere in the red section about the dual beam diode. Although I think someone mentioned this might be a slightly newer version.
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Old 09-10-2017, 12:20 AM #3
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Default Re: Has anybody messed with the new 2.5W Mits diode yet?

Quote:
Originally Posted by Lildutchboy7 View Post
I have the tri-beam diode, the G84. I think Podo has made a thread somewhere in the red section about the dual beam diode. Although I think someone mentioned this might be a slightly newer version.
My impression is that this one is a much newer version which makes me think it might be able to be pushed harder. Not really sure how correctable or powerful until somebody tries it though.
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Old 09-10-2017, 12:22 AM #4
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Default Re: Has anybody messed with the new 2.5W Mits diode yet?

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Originally Posted by Rivem View Post
My impression is that this one is a much newer version which makes me think it might be able to be pushed harder. Not really sure how correctable or powerful until somebody tries it though.
So, you are or aren't talking about the dual/tri beam diode? I believe there's a couple threads on the G84, including LDB's thread.
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Old 09-10-2017, 12:37 AM #5
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Default Re: Has anybody messed with the new 2.5W Mits diode yet?

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Originally Posted by ElectricPlasma View Post
So, you are or aren't talking about the dual/tri beam diode? I believe there's a couple threads on the G84, including LDB's thread.
It is a dual beam diode according to specs, but it should be the newer version of that one. It is definitely sold and labeled as the G85 and not G84 though.

Edit: Just to be clear, it might not be any different, but I just want to know if somebody's bought one.
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Old 09-10-2017, 07:48 AM #6
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Default Re: Has anybody messed with the new 2.5W G85 yet?

The divergence is relatively horrible for all infrared to red wavelength laser diodes, unless single mode. The tri-beam G84 has my interest anyway, the G85 for the power too. I would like a tri-beam laser pointer anyway
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Old 09-11-2017, 04:51 AM #7
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Default Re: Has anybody messed with the new 2.5W G85 yet?

May be a good idea to wait until the Sept 2017 release of the newest 638nm Mitsu ML562H84 9mm will be like with built into TO can meniscus lens to reduce the horrible twin output divergence unless you want dual beams for whatever reason

see: MITSUBISHI ELECTRIC News Releases Mitsubishi Electric to Launch High-Power 638-nm Red Laser Diode with Built-in Lens


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Old 09-11-2017, 05:02 AM #8
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Sounds good on the surface, but the lens is only going to collimate the beam, not improve divergence that could be had by external collimation. It will be like putting a ball lens in a diode.
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Old 09-11-2017, 05:34 AM #9
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Default Re: Has anybody messed with the new 2.5W G85 yet?

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Originally Posted by paul1598419 View Post
Sounds good on the surface, but the lens is only going to collimate the beam, not improve divergence that could be had by external collimation. It will be like putting a ball lens in a diode.
Of course not the intrinsic divergence without the can or lens.

They say a more usable product as is reducing the twin beam output effect:
"Original built-in meniscus lens collimates the laser beam and reduces spread to about 1/700th"
"Eliminates the need for an external collimator lens and contributes to simpler optical designs, reduced sizes and lower costs for projectors"
"Collimates 98 percent or more of the laser beam and achieves an unmatched 2.5 W output under pulse operation"

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Old 09-11-2017, 06:31 AM #10
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Default Re: Has anybody messed with the new 2.5W G85 yet?

For our use, 98% isn't good enough, or is it?
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Old 09-11-2017, 05:01 PM #11
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Quote:
Originally Posted by Encap View Post
May be a good idea to wait until the Sept 2017 release of the newest 638nm Mitsu ML562H84 9mm will be like with built into TO can meniscus lens to reduce the horrible twin output divergence unless you want dual beams for whatever reason

see: MITSUBISHI ELECTRIC News Releases Mitsubishi Electric to Launch High-Power 638-nm Red Laser Diode with Built-in Lens
Thanks for the tip. That might also be interesting. Not looking to buy anything right away anyway. Since that lens is specifically designed for the diode, it might make things a lot easier.

I've just wanted to see if the G85 has any improvements over the G84 we've seen in real-world performance. Looks like nobody here gotten one yet though.
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Old 09-11-2017, 06:53 PM #12
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Quote:
Originally Posted by Alaskan View Post
For our use, 98% isn't good enough, or is it?
The 98% collimation they are referring to is the same amount of collimation you'd get with a ball lens inserted in the diode. The 1/700 better collimation refers to the uncollimated beams with the diode alone. Sure, it will be a boon to projector builders, but for us.....I don't see an advantage.

They also don't address the multiple beams at all, so saying this will improve that seems like wishful thinking.
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Old 09-12-2017, 06:18 AM #13
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Whatever the speculation This diode sounds much better than all the other high powered 638 diodes and if we can get our hands on some this year that would be awesome, If 2w of a NUBM44 type divergence, Oh man this is something I would want. But hey only if the price is wright, let's hope out Chinese friends can smuggle some out!
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Old 09-12-2017, 11:18 PM #14
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Sounds like a step in the right direction I supose!!
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Old 09-16-2017, 12:07 AM #15
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Twin beams are the problem...What a nightmare to redirect the beams into a parallel condition...then combine...then correct !! Nope !!! Not 4 me !!!...Even on a full optics bench...IMNSHO...not feasible.. See the pic !! Hahaha Beam out
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Has anybody messed with the new 2.5W G85 yet?-marty-feldman-2.png  
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Old 09-16-2017, 04:12 AM #16
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Default Re: Has anybody messed with the new 2.5W G85 yet?

Hahaha, you crack me up CD.
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For God so loved the world that He gave His only begotten Son, that whoever believes in Him
should not perish but have everlasting life.
For God did not send His Son into the world to condemn the world,

but that the world through Him might be saved.
“He who believes in Him is not condemned;
but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God.
And this is the condemnation, that the light has come into the world, and men loved darkness rather than light, because their deeds were evil.
For everyone practicing evil hates the light and does not come to the light, lest his deeds should be exposed.
But he who does the truth comes to the light, that his deeds may be clearly seen, that they have been done in God.”
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