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The Chartreuse Coruscation

RedCowboy

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That's very interesting that the red diode's beam was not perpendicular to the backing plate, I have suspected as much could be at play and I bet that's also happening with the blues sometimes and it's part of the problem, it all means adjustable mounts or hand fitting but also means it's not always the module seat that's solely to blame. Good info Thanks. :)
 

CDBEAM777

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Sorry LS....Out of town last week.....OK....Will get a pic of the FF spot. Looks really well matched to the DPSS. Some wispy Vertical Wings....I predict the BE will remove the majority of them.....along with the masking of the H-BE output !

Working on a method to incorporate the 532 OEM driver unit into a Handle/Standoff. This driver box...is not small !! The driver box is 89.45mm long x 46.45mm wide x 29.0mm tall.

SOoooo....I decided to incorporate this unit as a Handle/Standoff. See the attached pic. I removed the stock ends from the driver....and have fabricated two (2) end plates from 12.5mm thick Acrylic sheet to act as end plates. This arrangement will then become a handle of sorts !!!

The Acrylic plates now have been machined to form a semi-circle socket on one end....and the driver will be sandwiched....between the front Acrylic plate and the rear Acrylic plate. Power in/Power out and I/O light and switch will both be relocated to be located in the Acrylic plates.

Now....this is the only location that this " Handle" can be placed...unfortunately...it is NOT a balance point. This build is front heavy ...and this handle...is located too far to the rear.

When placed upside down on this handle......the unit will tip down ….. Oh Well. That is the way it goes. !.....I will need to fabricate a dedicated/custome stand....for display/storage !! This build just keeps getting bigger and bigger !!

See the removed - (black) stock end plates in the pic. See the original driver pic also attached.

I still must re-machine the H-BE to accept the larger optics train.

Getting near the end !!!!! TOOooooo Bad !!

CDBEAM

Note: Yes RC...I bet we have had this issue happening on some LD's B4....where the Axis propagation.....is NOT perpendicular to the LD case back.....WTF ????? I tried many ways....but am positive the beam was crocked !!! I can compensate....but at considerable time/energy !! CDB



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paul1598419

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Thanks, Bob. Can't wait to see the final version.........oh, and some beam shots. :D
 

CDBEAM777

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Yea....Lotsa beam shots will be headed this way !! Gotta do the Red FF for LS....tomorrow....

See the attached pic..... Works in Progress ...with the handle in position...not yet fixed....and nothing else in place yet….I just had to see how it would look....mmmm….I think it looks OK ???? Not Bad....NOT that I had a choice....as this is the driver that Jetlasers supplied. IT'S GOTTA GO somewhere !!!

IMNSHO...this is the best placement I can deliver ! Not the standard Hand Held....BUT THEN....Not Much standard about this build !!

Later....CDBEAM63435
 

CDBEAM777

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LS....See FF of Red only. Top/Bottom wing much more pronounced in the pic....not real life. BE should reduce these down considerable. FF @ 3M distance from output. Divergence @ 1.0 mRad. Spot geometry @ 7.5mm

See pic of Jetlasers 532 nm OEM driver enclosure adapted as a handle for the build ( Black box with Acrylic Endcap plates attached front and rear )...just another " Curve in the Road " driven around !!

CDBEAM









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RedCowboy

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Could you replace that large driver with a BB8 or the 5500 as it's just driving an 808nm pump diode Right ? or is there a TEC also ?
 

CDBEAM777

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RC....I specifically requested no TEC to Jetlasers. No real need in this application. Hmmmmm ???? Gotta think on this one. I surly have room for one more BB8 unit....encased inside the host front. I thought about this option....but just did NOT want to fry the 808 pump Diode.....If this were to occur....well, the whole Module would be junk !!

Hmmmm ????? I will consider this....but now....I do have a functional and aesthetically pleasing handle !!! What to do....What to do !!!

In addition....I now plan to attach a ultra small / digital VDC meter....to the surface of the rear Acrylic plate. This meter will measure the VDC supplied to the BB8 driver control input....that I am using to power the AA2 Red diode.

This meter will display 0-5 VDC.....and it is this voltage signal which determines the current input to the AA2.

I asked JetLasers if they had a smaller driver ?? Nope !! They did not !! They (Jetlasers ) sure have the smallest module....and the best price !!!!

I will reconsider this option....but am leaning at keeping what I have....Larger build / Steampunk look and all!!!

Thanx,
CDBEAM
 
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CDBEAM777

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Well.....I will likely keep the " Driver Camouflaged as Handle " design....I like the looks....and....honestly....I want to finish this build !! I have so many other projects to work on.....and well....it looks good...IMNSHO...kinda balances out the profile......Hmmmm ??

It is not like this Handle addition will limit the portability of this build. The build attribute of being a normal size pointer...was gone from the very start !!!
A small to medium size, build....is NOT optional with this level of complexity, power and optical properties !!! Not with what diodes we currently have to work with !!!....SOooooo...Steampunk it is !! Really, all things considered....with what we are doing here....I cannot imagine a more compact package.

CDBEAM
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CDBEAM777

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Hmmmm...My builds follow the graph below....somewhat exponential....always L O N G....but then....they supply some degree of extended...er….ah...entertainment !! We are to the point now....when all is coming together !! Quickly...Some steps remain !!

The H-BE still requires modification....as in lengthening the flat saddle seat....and lowering the depth slightly. This is a critical step....as the elevation Must be spot on....as to deliver a centered beam to the Beam Expander optics.

We currently stand at 186 posts to this thread !!! WOW...but...not really surprising….considering ALL the twists and turns in the build path !
If there is a better way to combine higher power LD's....and correct the beam....I would luv to see details. ….That said...Sanwu….please provide detailed drawings to your RGB unit !!! HAHAHAHA !! Ya right !!! The Sanwu is a combined RGB of 480mW ( As advertised )....all single mode diodes....with only R/G.....there would be 280mW output.....vs the CHC @ approx. 1200mW !!

I wonder what yellow/green combined colour this unit produces....as I would assume....the Green is an direct LD....so...output @ 520nm....something I found....unacceptable to mix with the 637nm Red !! Whatever. So it goes !

Later,
CDBEAM




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