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gitd lens cap on red 450ma

nkgamer1990

nkgamer1990

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so i have.... had a red loc running at 450ma, lased great no problems. i store it with a lens cap and forgot to take it off wen powering it up, and led'd it. so either i backflashed the diode or the driver because wen this all happened i thought i saw smoke coming from the driver, could the smoke have been from the gitd lens cap?
 





kevinmassey

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I doubt it came from the dust cap. I think the beam diameter would be to big at the apperature to burn it.
 
Pontiacg5

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If it runs at all I wouldn't think its the driver. Probably blew the diode out :/

I didn't know reds did this too, I thought it was only a issue with blurays
 
Pontiacg5

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I don't see how reflecting light into a laser diode will kill a driver. Could someone explain?
 
H

hydrogenman15

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Pontiacg5 said:
I don't see how reflecting light into a laser diode will kill a driver. Could someone explain?
Click to expand...

Maybe it didn't, its possible the diode changed electrical properties when it LEDed and that caused the driver to fail. I still think it worth testing it on another driver.

--Hydro15
 
nkgamer1990

nkgamer1990

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Thanks for the input, im going to hook it up to a microdrive tomorrow to see if it lases.

The only reason i think its backflash is because the only thing that changed in the setup was the dust cap, it was running on a full color driver and worked great for 20 min before i gave it a break, i came back 10 min later to show a friend and upon connecting the leads to the battery i saw smoke from either the driver or the laser(there positioned in close proximity). Guess ill know more tomorrow.
nick
 
ReNNo

ReNNo

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hydrogenman15 said:
Maybe it didn't, its possible the diode changed electrical properties when it LEDed and that caused the driver to fail. I still think it worth testing it on another driver.

--Hydro15
Click to expand...

If diode changed its electrical properties then testing on another driver is waste of time.
I hope that only driver died...
 
H

hydrogenman15

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ReNNo said:
If diode changed its electrical properties then testing on another driver is waste of time.
I hope that only driver died...
Click to expand...

I think that the driver might have have just happened to brake when he had the dust cap on. There is only one way to find out though.

--Hydro15
 
daguin

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Pontiacg5 said:
I don't see how reflecting light into a laser diode will kill a driver. Could someone explain?
Click to expand...

I am certainly NOT saying this is what happened. I would need to test the components to know. However, if the diode heated enough to cause a wire to break in the diode, it would then become an open circuit. A flexdrive without a load will overheat and blow.

Stretching it? -- Maybe, but it is possible

Peace,
dave
 
Pontiacg5

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I guess thinking about it, a wire could have melted and grounded out to the case blowing the drive.
That = epic laser fail, the only way it could get worse would be if your batteries ignited.
 
nkgamer1990

nkgamer1990

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I connected the diode to a micro drive and it led'd so the diode is done. but wen i tested the output on the full color driver i read 80 on the 2000m setting and 21 on the 2000k setting. im not sure but i think this means 80mah and 2.1v correct?
nick
 
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