I have a history of killing 445nm diodes, probably $300 in the hole over a period of 5 years.
Not from too much current but from overheating or too long a duty cycle.
So I just bought one of DTR 7w NUBM44 V2 450nm Diode In 12mm Copper
I got the 12mm so I could attach a thermistor connected to...
It's been awhile since I made my last driver but I think my 7135's were overheating above 3.7v, so I was going to use the voltage regulator before the current regulators to give me a wider range of batteries. Other than added complexity would this work?
So lets say I have a voltage regulator that outputs the needed voltage to the diode and I run this through 7135 current regulators. Would I have a direct driver that worked? Does the diode need anything other than the proper voltage and current?
Needing some answers to an idea I had.
From the time I watched the first terminator, I've thought of a 40w portable laser.
Just wondering if I could make the below idea work, or if the wavelengths would cancel each other out.
Take a 90mm makutov telescope. Build a heatsink in front of the...
Just now getting into green lasers, Not familiar with the diodes in common usage. Looking for something around the cost and as usefulness as my Jayrob 445nm build.
Any advice and option suggestions would be appreciated. Thanks
I have a mini 904nm diode and the lens is so small it can't easily be cleaned and a little dust messes up the beam.
In front of the diode is a .4" cylinder shape area I can put a sacrificial lens. I guess I can either screw a module into this place or bond a lens in this area.
Any idea where I...
I've been keeping to the norm and using flexdrives set at 1.5amps, but they get pricey when you have several projects going on.
There is a plethora of LED drivers ranging from 300ma - 750ma - 1,400ma on ebay that can be had for less than $6.
By combining 2 or 3 of these you could achieve a lot...
Any idea how for you can see a beam this powerful pointed into the air with night vision? Its not about pointing it at someone. its about looking for the beam from another ground position when it is pointed at the empty sky. I have a personal need for this and I want to explore the most I can...