445nm diode info

[lasersbee]

Hi. What is a Z-Bolt clam shell heat sink?

Thanks!

-Franken

Look at the pic in Post #51...

And for people that don't have the ability to see into the past before said item was discontinued, its a heatsink that you can bolt onto a normal 12mm diode housing

I just ordered 10 of these that arrived on Friday....
I don't think they are discontinued...

Jerry

[ElektroFreak]

Definitely not discontinued.. they can be purchased here: http://www.z-bolt.com/order/Product236

[krazer]

The only reference to the 'z-bolt heatsink' in Doc's oh so amazingly useful response refers to http://www.z-bolt.com/order/Product240 which has been replaced with HS-1A linked above.

In any case, I am expecting a new A140 projector to arrive next week which will allow me to restart testing of when the thermal cutoff kicks in, and take a more detailed analysis of the diode current in various operating modes.

edit:

I spent some time with the microscope and have determined the stripe width on these diodes is ~20um. Shown below is a sem micrograph, and a few visible light pictures of the diode. I couldn't get the whole die in focus at once due to the shape of the housing, but it is symmetric front to back so just use your imagination.

445nmsem4.pngtop.JPGside view.JPGstripe_vis.JPGactivearea.jpg

[flecom]

I would like to add that these diodes are amazing, I accidentally turned one on with NO heatsinking, it was bright, dimmed quickly and let out a puff of smoke...

put it back in the heatsink and turned it back on, it was doing the exact same power as pre-smoking!

[loopee]

The Z-bolt heatsinks can be good for making quick laser modules

SM-IMAG0166.jpgSM-IMAG0163.jpgSM-IMAG0164.jpgSM-IMAG0165.jpg

With the fan on top of the heatsink they barely get warm when I run the diode at 700mW

Troy

[flecom]

where are you guys getting these z-bolt heatsinks?

[loopee]

Here: http://www.z-bolt.com/MODIIIbg-green-laser-module.html

Fourth item on the list - HS-1a, Green Laser Module Heat Sink - US$15.00

[krazer]

I have attached a zip with an 8x14 array of x-rays, which cover the entire motherboard/diode driver board (both of these boards are 4-layer boards, so the xray helps tracing down traces).

If anyone is bored and feels like stitching them together to form a proper image be my guest!

[flecom]

Here: http://www.z-bolt.com/MODIIIbg-green-laser-module.html

Fourth item on the list - HS-1a, Green Laser Module Heat Sink - US$15.00

cool thanks!!!!!!!

[dnar]

I fitted a 140 diode to one of Dave's lovely brass mounts with glass AR lens, and then to an ali base with fan. Running @ 1250mA no issues, yet. Given the content of this thread I will reduce this down to 1000-1100mA.