Streamlight Microstream Pen 450nm

Here's a little guy that's been forever coming together, It's a 3/4 length mini pen made by Streamlight, it's their "Microstream" model which I believe is their smallest offering.
So finally after two diodes, the first was just a very weak (83mW) w/G-2 lens, and two drivers (operator error):mad:, and a lot of just plain collecting dust, it's finally complete. :yh:

These little Microstream builds have been done a couple of times previously, namely by ShotGunDrums, and CynicalBrad.
My Microstream was on order back when SGD posted his build back in august; this will give you an idea on how long it's taken me to finish this up!

These Streamlight penlights make a great host for pen sized laser builds, they're a high quality host with a decent quality momentary/constant on tail switch.
The only thing that I don't like about them is the fact that the front does not disassemble; you have to pull the original led/driver assy. out from the front, and your new diode/driver module goes back in the same way.
Many pen sized lights are built this way, but a 3 piece host constructiom would be easier to work with.


Components Used For This Build:

• "Streamlight Microstream" Penlight - for host & battery contact board.
• Osram PLT5 450B 450nm Diode. (DTR)
• 12mm Copper Module w/Alum. back half. (DTR)
• 'S Mini' Boost Driver set at 273mA. (Lazeerer)

Dimensions & Weight:

• Length = 96mm (3.77")
• Diameter = 15mm (0.59")
• Weight w/Battery = 38g (1.34oz)

Measured Power Output:

• 3 Element = 233mW
• Acrylic = 258mW
• G-2 = 323mW

A few photos! :wave:




(Left) Complete LED drive module as pulled from light. (Right) Disassembled LED module. Contact board on right was modified and re-used.


Module assy. showing bored out aluminum back half, and turned down copper front piece.


Battery contact board w/mods. for connection to aluminum module and added solder blob for battery contact.


Complete Module assembly.


(Left) Modified 12mm copper module. (Right) 2 styles of module retaining clips that I tried. I ended up using the simple home made spring clip on the left.


Finished EDC pen with focus knob assortment. I ended up using the standard fluted one which I sandblasted and painted a flat black to match the look of the Streamlight.
The others are the standard chrome plated, a 'Survival Laser' black anodized aluminum knob, and a custom one that I made which looked real nice, but I decided on the all black look. :yh:


Here's a look at it with the custom adapter ....not too shabby!



Here's a couple of pics showing how small this pen is.








A few indoor beam shots with some light fog.







Close-up of dot on textured garage door at 40'.


A pattern made on the wall when the laser was shined through a wavy glass table top.
Or, this could be your laser on drugs! :D



That's all for now folks. :wave:

PS - I would recommend this penlight to use for a host for a low to mid powered laser. Being shorter than a "traditional" pen it clips in any pocket with ease, a truly EDC (every day carry) design! :beer: