- Joined
- Jul 27, 2010
- Messages
- 154
- Points
- 18
I finally got around to dissecting the "5mW" green pen that is often sold in a 405nm/Green combo on Ebay.
First, it's a bitch to get out of the barrel. Press fit all the way. And yes, I buggered the end of the module trying to get it out of the barrel.
Here's the whole module, unscrewed. I am sure that there was a spring between the DPSS xtal module and the output lens assembly on the right.
Things went POING when I unscrewed it. The spring has jumped to another dimension somewhere. The threads on the pump diode module (left) allow the adjustment of the focusing distance to the output lens.
Next, DPSS crystal module and intermediate lens. If it's a two xtal DPSS, then one of them has to be very very small (like the size of the input mirror on the right).
Image of the open-ended pump diode in the threaded holder.
Pump diode driver board top (minus the spring).
Driver board bottom.
Since the only thing holding the xtal module in alignment with the pump diode is spring in the module, it may be possible to tweak a cranky pen back into operation. But that would mean getting it out of the barrel.
Possible, but not fun.
First, it's a bitch to get out of the barrel. Press fit all the way. And yes, I buggered the end of the module trying to get it out of the barrel.
Here's the whole module, unscrewed. I am sure that there was a spring between the DPSS xtal module and the output lens assembly on the right.
Things went POING when I unscrewed it. The spring has jumped to another dimension somewhere. The threads on the pump diode module (left) allow the adjustment of the focusing distance to the output lens.
Next, DPSS crystal module and intermediate lens. If it's a two xtal DPSS, then one of them has to be very very small (like the size of the input mirror on the right).
Image of the open-ended pump diode in the threaded holder.
Pump diode driver board top (minus the spring).
Driver board bottom.
Since the only thing holding the xtal module in alignment with the pump diode is spring in the module, it may be possible to tweak a cranky pen back into operation. But that would mean getting it out of the barrel.
Possible, but not fun.