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Old 11-25-2009, 06:58 AM #1
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Default A Help about Infrared laser diode

Hello guys, I want a help with an infrared laser diode .
1. What's the polarity? the pin that is connected with the case is the ground and the other 2 positive and negative ?

2. You can see infrared beam at night ? or it's invincible?

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Old 11-25-2009, 07:29 AM #2
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Default Re: A Help about Infrared laser diode

i think IR diodes have the opposite polarity of reds.
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Old 11-25-2009, 07:33 AM #3
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Default Re: A Help about Infrared laser diode

can you draw me a diagram pls? I will appreciate that !
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Old 11-25-2009, 08:45 AM #4
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Default Re: A Help about Infrared laser diode

here you go

link

As i said before i'm not sure if its correct,but i believe it is.
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Old 11-25-2009, 09:01 AM #5
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Default Re: A Help about Infrared laser diode

oki man.. thnx for the help..,
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Old 11-25-2009, 09:20 AM #6
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Default Re: A Help about Infrared laser diode

i can't understand if the diode is working cos the beam is invincible.. any solution :S?
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Old 11-25-2009, 09:31 AM #7
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Default Re: A Help about Infrared laser diode

try to burn something or solder the wires to the driver and try different polarities by touching the pins to the wires.
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Old 11-25-2009, 12:26 PM #8
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Default Re: A Help about Infrared laser diode

DO NOT look into the diode, but you may see a blue pink red glow radiating from the diode. Maybe put it at an angle away from you close to a piece of paper and see if you see a glow. Also if you have a "night shot" camera, you can use that to view the beam, dot.

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Old 11-25-2009, 02:05 PM #9
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Default Re: A Help about Infrared laser diode

can anyone check the diagram and tell me if the polarity is right ? Btw because i didn't have driver , i checked the polarity with one AAA battery. I don't think so that diode burned :S or it has possibilities of getting burned?
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Old 11-25-2009, 03:05 PM #10
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Default Re: A Help about Infrared laser diode

Just search around bro. You need a driver 'cause you may fry the diode, and I doubt 1 AAA is enough juice to get it to lase with or without a driver.
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Old 11-25-2009, 03:31 PM #11
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Default Re: A Help about Infrared laser diode

You should be able to see the IR output with just abut any digital camera..
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Old 12-16-2009, 12:18 AM #12
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Default Re: A Help about Infrared laser diode

should be invisible, if it were invincible i would have already powered it to 500 W hahaha, JK
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