Hiemal
0
- Joined
- Dec 27, 2011
- Messages
- 1,443
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Hey there! So, I received the two Directly doubled modules from RHD today.
One was already dead unfortunately. I tested it to the best of my powers and nothing came out... dissected it and well, now she is in DPSS heaven... :cryyy:
Back to reality and earth, the other one was still in the projector's diode sled thing...
I haven't bothered to take it out yet; I will soon enough though.
Getting down to it;
Driving the laser diode at around 222 mA; the heater is adjustable from 0 mA to 80 mA. The sweet spot is around the middle of that, roughly 40-50 mA.
Results:
Looks to be about as bright as 30 - 40 mW of normal DPSS green...
I also measured the operating voltage; At 222 mA, the operating voltage was only 1.62 volts! :wtf: :thinking:
So, I'm inputting only 0.35 watts... not including the heater.
Also realizing that the die itself has two die wires, I decided to push it a bit more... at 312 mA.
Results
Wow, we're getting visible in a moderately lit room...
Nice!
Measured the voltage again; got 1.7 volts at 312 mA.
I was feeling brave; decided one last time to push it up a little; to 416 mA. Measured the voltage to be 1.72 volts.
The results were stunning.
I apologize for the grainy picture.
Wow. I felt the little module; hardly warm at all... At this power, I could burn black things UNFOCUSED. This is also with the losses of like 3-4 different mirrors and optics inside the sled thing too.
So, I ask, should I try pushing it any more or should I stop? 1.7 volts is AMAZINGLY low for any IR diode, if I'm correct....
And a random note; where the DLP chip thing sits is a rather powerful magnet; I noticed it after the sled stuck to the 9 volt battery... which was rather nice, as it makes for a nice mount.
One was already dead unfortunately. I tested it to the best of my powers and nothing came out... dissected it and well, now she is in DPSS heaven... :cryyy:
Back to reality and earth, the other one was still in the projector's diode sled thing...
I haven't bothered to take it out yet; I will soon enough though.
Getting down to it;
Driving the laser diode at around 222 mA; the heater is adjustable from 0 mA to 80 mA. The sweet spot is around the middle of that, roughly 40-50 mA.
Results:
![gz1XX.jpg](http://i.imgur.com/gz1XX.jpg?2)
![uKXXel.jpg](http://i.imgur.com/uKXXel.jpg)
Looks to be about as bright as 30 - 40 mW of normal DPSS green...
I also measured the operating voltage; At 222 mA, the operating voltage was only 1.62 volts! :wtf: :thinking:
So, I'm inputting only 0.35 watts... not including the heater.
Also realizing that the die itself has two die wires, I decided to push it a bit more... at 312 mA.
Results
![qAihW.jpg](http://i.imgur.com/qAihW.jpg?3)
Wow, we're getting visible in a moderately lit room...
![BzRbZ.jpg](http://i.imgur.com/BzRbZ.jpg?1)
Nice!
Measured the voltage again; got 1.7 volts at 312 mA.
I was feeling brave; decided one last time to push it up a little; to 416 mA. Measured the voltage to be 1.72 volts.
The results were stunning.
I apologize for the grainy picture.
![Yd2VW.jpg](http://i.imgur.com/Yd2VW.jpg?2)
Wow. I felt the little module; hardly warm at all... At this power, I could burn black things UNFOCUSED. This is also with the losses of like 3-4 different mirrors and optics inside the sled thing too.
So, I ask, should I try pushing it any more or should I stop? 1.7 volts is AMAZINGLY low for any IR diode, if I'm correct....
And a random note; where the DLP chip thing sits is a rather powerful magnet; I noticed it after the sled stuck to the 9 volt battery... which was rather nice, as it makes for a nice mount.
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