- Joined
- Jan 14, 2011
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Hey everyone.
I just took apart a DVD player, which, oddly enough, actually had two LDs in it, one of which was in fact a *red* diode (not IR, it was pretty bright and was about to last at around 60mA), and I decided to do some tests.
The first test was to see how much current the red one could handle. Unfortunately, it died on me at about 100mA, but that's no biggie. Was from a cheapo DVD player that I didn't even expect to have a nice LD in it.
But, after that, I just wanted to see what would happen when I cranked up the amperage on the remaining diode (I suspected this one was IR, was very dim, but may just have weakened it due to overdriving).
So, I hooked it up to, essentially, my LD play box (adjustable current from 50mA to 1.25A via large knob), and, starting at 50mA, quickly turned the knob to 1.25A... and I saw a white flash.
Of course, it died immediately, but there *was* a white flash that was emitted from the diode... may have been yellow? Not entirely sure. Anyway, anyone know about this? It's interesting, because it went from extraordinarily dim to significantly brighter for a bright instant, and the light was white, then it went off forever.
Any thoughts?
I just took apart a DVD player, which, oddly enough, actually had two LDs in it, one of which was in fact a *red* diode (not IR, it was pretty bright and was about to last at around 60mA), and I decided to do some tests.
The first test was to see how much current the red one could handle. Unfortunately, it died on me at about 100mA, but that's no biggie. Was from a cheapo DVD player that I didn't even expect to have a nice LD in it.
But, after that, I just wanted to see what would happen when I cranked up the amperage on the remaining diode (I suspected this one was IR, was very dim, but may just have weakened it due to overdriving).
So, I hooked it up to, essentially, my LD play box (adjustable current from 50mA to 1.25A via large knob), and, starting at 50mA, quickly turned the knob to 1.25A... and I saw a white flash.
Of course, it died immediately, but there *was* a white flash that was emitted from the diode... may have been yellow? Not entirely sure. Anyway, anyone know about this? It's interesting, because it went from extraordinarily dim to significantly brighter for a bright instant, and the light was white, then it went off forever.
Any thoughts?