MadEye
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- Joined
- Aug 6, 2011
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Hello everyone!
I already had a Thread here about my Cooling, and now im finally finished!
I decided to build my first 445nm Laser as a Labby because the highest powered laser I ever used was a 200mW Red and I first wanted to get some experience with the 1W power.
At the moment its run at max. 850mA, but i want to higher it to put out exactly 1W as soon as my Laserbee arrives :>
I really wanted to install a penal meter which shows the Current of the Diode, but i had absolutly no space in the front. Maybe i make an small Adapter in the future, but i don´t think i really need this, so we´ll see...
I anodized all the parts black which was quite hell, i´ve never done this before and for the bigger parts I needed 3 Tries and basicly 5-6h per Try... -.-
Ok, now here is the power supply with my analog driver
It has a key switch (It let it look so dangerous :> :> :>), 2 switches for laser and fan, a potentiometer to regulate the power as well as 3 LEDs for Power, Laser and Fan.
Here is my diode in the heatsink with the tiny fan, it might not be big, but at 850mA it stays absolutly cold, not even a little bit warm. The last part, the Clip holding the wire just arrived today and i could remove my provisional tape you can see on the other pictures.
Heres whats inside. Yes, its quite messy but thats the reason why hosings get closed... I just hope i never have to fix something.
So here is it with the lowest power when the middle line of the diode dot appears. In the second picture its pointed to a piece of aluminium compared to my 100mw 405nm and 30mw 532nm... My red one just died (had a kiss from 9V... -.-) and i have to get a new diode until it will run again.
Here its at 850mA, the beam is not visible because the reflection of the floor is to bright and I couldn´t take some good beam shots yet, but I think all of you know how a 445nm Beam looks like
When pointed at the aluminium I felt like my camera almost died, i have not changed the light or something else, its just the camera dimming the light of the room so much that it apears absolutly dark.
So, thats my new toy, i cant wait to give it more power, but i would really like to measure the output before going above 1A. Also I´m getting a new Diode atm (Not easy to get them fast for a fair price in germany...), so I maybe even do some experiments with more power up to 2W in the future but now I´m to afraid to kill it and end up with nothing for now.
By the way, if I set it to output 1A with glass lens, how long can I reckon the Diode to work until it gets LEDd? And how long does it live with higher outputs? Not this values which 1 diode out of 100 reaches, so maybe you have some realistic results... Is my heat sink even able to handle 1W with glass?
Ok, now you can say what u think about my first Labby and maybe give me some advices about how powerful I can run it.
*** [Beamshots - Or at least a try] ***
So after some tries with different cameras i just realized my Sony camcorder has this super light sensitive Exmor sensor and taking pictures in video mode really gave the best results... Maybe i should just increase the power or get a small fog machine... You have to tell me how you make those Pictures where the Beam looks so absolutly bright and has a huge glow... When the dot was in the picture it was so bright that i could not see the beam anymore...
I already had a Thread here about my Cooling, and now im finally finished!
I decided to build my first 445nm Laser as a Labby because the highest powered laser I ever used was a 200mW Red and I first wanted to get some experience with the 1W power.
At the moment its run at max. 850mA, but i want to higher it to put out exactly 1W as soon as my Laserbee arrives :>
I really wanted to install a penal meter which shows the Current of the Diode, but i had absolutly no space in the front. Maybe i make an small Adapter in the future, but i don´t think i really need this, so we´ll see...
I anodized all the parts black which was quite hell, i´ve never done this before and for the bigger parts I needed 3 Tries and basicly 5-6h per Try... -.-
Ok, now here is the power supply with my analog driver
It has a key switch (It let it look so dangerous :> :> :>), 2 switches for laser and fan, a potentiometer to regulate the power as well as 3 LEDs for Power, Laser and Fan.
Here is my diode in the heatsink with the tiny fan, it might not be big, but at 850mA it stays absolutly cold, not even a little bit warm. The last part, the Clip holding the wire just arrived today and i could remove my provisional tape you can see on the other pictures.
Heres whats inside. Yes, its quite messy but thats the reason why hosings get closed... I just hope i never have to fix something.
So here is it with the lowest power when the middle line of the diode dot appears. In the second picture its pointed to a piece of aluminium compared to my 100mw 405nm and 30mw 532nm... My red one just died (had a kiss from 9V... -.-) and i have to get a new diode until it will run again.
Here its at 850mA, the beam is not visible because the reflection of the floor is to bright and I couldn´t take some good beam shots yet, but I think all of you know how a 445nm Beam looks like
When pointed at the aluminium I felt like my camera almost died, i have not changed the light or something else, its just the camera dimming the light of the room so much that it apears absolutly dark.
So, thats my new toy, i cant wait to give it more power, but i would really like to measure the output before going above 1A. Also I´m getting a new Diode atm (Not easy to get them fast for a fair price in germany...), so I maybe even do some experiments with more power up to 2W in the future but now I´m to afraid to kill it and end up with nothing for now.
By the way, if I set it to output 1A with glass lens, how long can I reckon the Diode to work until it gets LEDd? And how long does it live with higher outputs? Not this values which 1 diode out of 100 reaches, so maybe you have some realistic results... Is my heat sink even able to handle 1W with glass?
Ok, now you can say what u think about my first Labby and maybe give me some advices about how powerful I can run it.
*** [Beamshots - Or at least a try] ***
So after some tries with different cameras i just realized my Sony camcorder has this super light sensitive Exmor sensor and taking pictures in video mode really gave the best results... Maybe i should just increase the power or get a small fog machine... You have to tell me how you make those Pictures where the Beam looks so absolutly bright and has a huge glow... When the dot was in the picture it was so bright that i could not see the beam anymore...
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You can drive it above 1A safely, just watch the duty cycle, which depends on how much mass your heatsink has 
