Gryphon
0
- Joined
- May 4, 2009
- Messages
- 2,318
- Points
- 113
At 7.9W @ 457nm its my strongest single diode laser build so far. It could have been more but my choice in extra optical components for a slightly lower divergence while being easy to assemble (not hand aligning a C lens pair) means there are measurable loses in the optics. The diode is a NUBM0F with G-Ball intact and is backed by a solid module back half. In front is a G-Ball adapter and a G8 lens in the final assembly. In the picture below there is a stock plastic lens for dust protection while I assemble everything.
Behind the diode and optic stack is a 12mm solid copper rod that has a large flat filed down on it to make a heatsinking shelf for the Astral driver and switching MOSFET.
The solid copper heatsink was made by PCBWAY. I sent them a file I drew up in Fusion360 and for $90 it arrived about 10 days later. I think I'm going to attempt a more complicated multi diode heatsink next time!
The heatsink was sized to use up as much of the internal space in the host as possible. The collimator end butts right up the optic window and the MOSFET end protrudes down into the host as far as it can without obstructing the holes for the side switch and LEDs.
The batteries for this project are two Vapcell A11 18350's. The tail cap switch needed to be modified internally to allow for the extra length of the two batteries over the single 18650 it normally held.
Behind the diode and optic stack is a 12mm solid copper rod that has a large flat filed down on it to make a heatsinking shelf for the Astral driver and switching MOSFET.
The solid copper heatsink was made by PCBWAY. I sent them a file I drew up in Fusion360 and for $90 it arrived about 10 days later. I think I'm going to attempt a more complicated multi diode heatsink next time!
The heatsink was sized to use up as much of the internal space in the host as possible. The collimator end butts right up the optic window and the MOSFET end protrudes down into the host as far as it can without obstructing the holes for the side switch and LEDs.
The batteries for this project are two Vapcell A11 18350's. The tail cap switch needed to be modified internally to allow for the extra length of the two batteries over the single 18650 it normally held.