gitd lens cap on red 450ma

[nkgamer1990]

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]

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

 

[nkgamer1990]

but its still reflecting into the source

 

[Pontiacg5]

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

 

[hydrogenman15]

I think it could be the driver. I think i remember killing a flexdrive and having the diode go really dim like an led. I later tested it with a DDL driver and it worked fine IIRC. I think it might be worth a try.http://www.rog8811.com/LM317 basic.jpg

--Hydro15

 

[kevinmassey]

but its still reflecting into the source

Yes, that could have been the cause of death. I just dont think the smoke came from the dust cap.

 

[Pontiacg5]

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

 

[kevinmassey]

Yeah, me neither^... seems like a diode problem to me.

 

[hydrogenman15]

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

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]

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]

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

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

 

[kingdave2357]

I have ran reds with a GITD dust cap on them with no ill effects whatsoever....

 

[hydrogenman15]

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

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]

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

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]

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]

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