It is Here.!!!!! 300mW "635nm" Mitsubishi.....

DTR · Sep 29, 2011

Cyparagon said:
Isn't the o-like lens the same as the aixiz glass?

The Optima lens would make divergence even worse. We want to expand the beam, not shrink it.

They are different. The O-Like passes a bit more power with 445 and has less splash but it is only in a half threaded cell. This is my personal lens of choice with 445.:beer:

rhd · Sep 29, 2011

I'm semi disappointed with my Mitsubishi thus far. I'm running it at 970mA through either an Aixiz Acryllic Red-Coated Lens, or a 445nm Coated Glass, or a 405-G-1 (the options I have available at present).

It doesn't matter which of the three lenses I use, the build is lower in brightness than my 450mW JetLasers 635. The divergence and beam thickness are however better.

ARG · Sep 29, 2011

Cyparagon said:
Isn't the o-like lens the same as the aixiz glass?

The Optima lens would make divergence even worse. We want to expand the beam, not shrink it.

Nope, at least the blue coated one isn't. The divergence is about one third of a g-1 lens, and the power output is better than aixiz glass

paulzimm · Sep 29, 2011

I finally was able to install two of these 300mW Mitsubishi 635nm red diodes in my projector. Even though the beam is a bit wider than the two LPC-815's I was running before, they appear to be at least 3-4 times brighter than the old ones. As a test I put 2.30 amps through both of them wired in parallel and was getting just under a full watt of light AFTER losses from the PBS cube - Amazingly bright!

See attached photos...

EDIT: Even though they are nice and bright, I don't think I am going to keep them in the projector. Great for beam shows but they produce just too "fat" of a beam on the wall for graphic shows. Damn!

bennett326 · Sep 29, 2011

awsome that's incredible how much beam is lost on the galvos can you measure that?

and what size al plate is your scanner one

rhd · Sep 29, 2011

Ok - so these diodes ARE pretty cool

No fog, no long exposure, no pitch black darkness. Just a Mitsubishi build, and a cell phone camera (and Photoshop to resize). Pretty impressive beamshot, given those conditions, for a RED:

paulzimm · Sep 29, 2011

*** SOLD *** Two 300mw 635nm Misubishi diodes mounted in Aixiz module with a very small amount of Arctic Silver heat sink compound around the edge. Perfectly soldered using a heatsink clip with good silicone wire and heatshrink tubing to protect the pins from shorting.

No lens will be provided, but I will ship it with plastic Aixiz lenses installed to protect the diodes. These were running as a test in my RRGB laser projector for less than half an hour connected to MASSIVE heatsink (the entire 3/8" projector board) and these were putting out around 500mW at 1 Amp of current. For $100 total and shipping is included, will send the very next day! Please PM me if interested...

Bionic-Badger · Oct 2, 2011

rhd said:
I'm semi disappointed with my Mitsubishi thus far. I'm running it at 970mA through either an Aixiz Acryllic Red-Coated Lens, or a 445nm Coated Glass, or a 405-G-1 (the options I have available at present).

It doesn't matter which of the three lenses I use, the build is lower in brightness than my 450mW JetLasers 635. The divergence and beam thickness are however better.

At those power levels, the Mitsubishi diode is probably wavelength shifting towards longer wavelengths that reduces its perceived brightness. It might be interesting to see where this brightness peak is, and if it's better to pull back the power somewhat to achieve that perceived maximum.

rhd · Oct 2, 2011

Bionic-Badger said:
At those power levels, the Mitsubishi diode is probably wavelength shifting towards longer wavelengths that reduces its perceived brightness. It might be interesting to see where this brightness peak is, and if it's better to pull back the power somewhat to achieve that perceived maximum.

I'm going to shoot my Mitsubishi and my JetLasers 500mW 635 through a diffraction grating and see how they compare.

EDIT: Ok, this is interesting - the Mitsubishi at 500mW is skewing what appears to be (subjectively - based on the position of the dots) approximately 5nm higher than my JetLasers 500mW.

lazeerer · Oct 2, 2011

^Your Jet Laser is Probebly using the 500mW Mitsubishi there for it probebly not being driven as Hard.

DTR · Oct 2, 2011

rhd said:
I'm going to shoot my Mitsubishi and my JetLasers 500mW 635 through a diffraction grating and see how they compare.

EDIT: Ok, this is interesting - the Mitsubishi at 500mW is skewing what appears to be (subjectively - based on the position of the dots) approximately 5nm higher than my JetLasers 500mW.

Does the JetLasers 500mW have the same divergance as the 300mW diodes?

lazeerer · Oct 2, 2011

DTR said:
Does the JetLasers 500mW have the same divergance as the 300mW diodes?

rhd said:
I'm semi disappointed with my Mitsubishi thus far. I'm running it at 970mA through either an Aixiz Acryllic Red-Coated Lens, or a 445nm Coated Glass, or a 405-G-1 (the options I have available at present).

It doesn't matter which of the three lenses I use, the build is lower in brightness than my 450mW JetLasers 635. The divergence and beam thickness are however better.

^^^I think according to what he is saying here its worse then the 300mW...

Bionic-Badger · Oct 2, 2011

rhd said:
I'm going to shoot my Mitsubishi and my JetLasers 500mW 635 through a diffraction grating and see how they compare.

EDIT: Ok, this is interesting - the Mitsubishi at 500mW is skewing what appears to be (subjectively - based on the position of the dots) approximately 5nm higher than my JetLasers 500mW.

If it really is a 5nm difference around 635nm, it can have a big effect on perceived brightness.

jnhowett · Oct 3, 2011

I was doing some testing with my mitsubishi 300mw 635 diode today and
I BROKE 1W

I tested with an aixiz acrylic and was getting around 500mw at 1A

I tested with a 405 G-1 and was getting around 700mw at 1A :eg:

Then I was thinking about how everyone says these diodes are sensitive to heat and I got two ice packs out of the freezer...

I sandwiched the module between them and waited a few minutes to get this...:drool:

So this is probably around 0 Celsius probably a little warmer, needless to say I was psyched!

ARG · Oct 3, 2011

DTR said:
They are different. The O-Like passes a bit more power with 445 and has less splash but it is only in a half threaded cell. This is my personal lens of choice with 445.:beer:

Yup, I wish they would make them with fully threaded though.

DTR · Oct 3, 2011

jnhowett said:
I was doing some testing with my mitsubishi 300mw 635 diode today and
I BROKE 1W

I tested with an aixiz acrylic and was getting around 500mw at 1A

I tested with a 405 G-1 and was getting around 700mw at 1A :eg:

Then I was thinking about how everyone says these diodes are sensitive to heat and I got two ice packs out of the freezer...

I sandwiched the module between them and waited a few minutes to get this...:drool:

So this is probably around 0 Celsius probably a little warmer, needless to say I was psyched!

Is this just a quick peak with a dramatic fall back to 700mW. I would be more interested in seeing what super cooling them does to the wavelength.

ARGLaser said:
Yup, I wish they would make them with fully threaded though.

I use a little thermal adhesive to attach the focus rings to them. With this unit I built set to 750mA it is doing 370mW with the O-Like lens and 510mW with a G-2.

It is Here.!!!!! 300mW "635nm" Mitsubishi.....

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