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Its possible.. I think the reason they used 3 wires was to ensure that if one fused or failed the diode could still run at its rated power. This used to be done in the early days of LED 7 segment displays where a failed segment meant changing the entire display. One thought I had is to replace...

Re: Yay for me! :p I noticed this with the 405nm burner lasers too. I can only conclude that fluorescence accounts for most of this effect, as pointing the beam at paper is bright blue whereas wood looks purple. -A

Rumour has it that the UK are about to do something similar, because of the 2012 Olympics. The penalties for being caught with a laser pointer anywhere near the Olympic venue could be as high as 5 years/unlimited fine. Just wait till they start banning the sale of replacement laser blocks...

Hi all. Looking at the threads and from my own experimentation, it occurs to me that one possible use for the 445nm diodes could be to make the world's brightest pocket torch. All that would be needed is a 445nm diode, driver, salvaged or new blue to green/red crystal from white LED and a...

Cool, thanks for the support guys. I will be posting pictures as soon as its working, as I have a few things which need a 3-D setup to finish. Interestingly I found that it is possible that some "failed" diodes are actually repairable. I have noticed that PS3 diodes sometimes develop whiskers...

My theory re. the reversible nonthermal output loss at higher currents. The diode is basically a resonator at optical frequencies. Think of it like an optical Gunn diode, where it has peak and valley currents. So as the current rises, the optical output will increase up to a point. As it...

I'd have taken the can off entirely. Also you might be able to sacrifice an old Pentium CPU (the ones where the bond wires are easy to get to and solid gold) to make new bond wires. Old transistors sometimes use them, especially antique power germaniums. -A "Bother!" said Pooh, as the BORG had...

I second that, heat is normally what kills them. I've had a 405nm 30mW diode from an Xbox HD-DVD drive which worked fine at 78mA and put out over 60mW until it failed due to the aixiz heating up. Yes, it COD'd :-( aka Catastrophic Optical Damage. Effectively the front facet gets broken, in fact...

Hi, Yes, in the highly unlikely event this little scheme works I will send the repaired decanned diodes back for the cost of the postage. My cunning plan involves an improvised 3-D microscope setup using two small 1.3MP webcams with retasked scanner lenses as they have excellent optical...

EL paint from the Luxprint kits (fluoresces greeny blue under 405) White EL paint from same kits. UV security marker pen Those orange Highlighters Tonic water -A

Hi all. Upon reading the articles suggesting that broken 445's could be repaired, it occurs to me that I have some 35 gauge solder here. If anyone has one or more broken diodes which are open circuit, I would be interested in trying the bond wire repair technique on them. Thanks! -A