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Laser diode without lens?

Mutad0r

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Feb 8, 2013
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If I buy a laser diode, would that be all that I need, or do I need to get some lens too?

here is an example diode: 2008369 - LASER COMPONENTS - LASER DIODE, 655NM | Farnell Suomi

although it doesn't mention CW, would the light out of that be a CW dot?

In the end, what I want to know, is that is the light straight out of a laser diode focused properly to create a dot or is a lens necessary. Also, if some sort of a lens IS necessary, then what? :)

I don't want to buy a laser module because at that site they're almost all 1 mW and cost 10 times as much. Feeding proper current to the diode isn't a problem for me.
 

Moistenator

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Jun 26, 2012
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Yes, You will need a lens. Your best bet if you really want to keep that diode is buy a blank Aixiz module which will come with the standard acrylic lens, Which is all you'll need for a diode of that power. and you'll need a diode presser. If you need help finding these feel free to shoot me a PM and i'll point you in the right direction.
 




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