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juanma666

juanma666

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Mar 18, 2012
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90
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Hello friends.

Beginner's question.

What beam is more divergence 445 or 470nm?



Best Regards.
 





jimdt7

jimdt7

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Feb 5, 2011
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Divergence doesn't depend from wavelength!
It depends from the type of diode that is being used! :beer:

Jim
 
Last edited:
jimdt7

jimdt7

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Since it doesn't specify the model of the diode that is being used in the module, i can't tell you the divergence! :(
You should ask the seller of the modules! :beer:

Jim
 
InfinitusEquitas

InfinitusEquitas

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Mar 27, 2011
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Ask the seller for more information.

Typically though, 445nm lasers are diode based, where as 470nm are dpss. The DPSS modules are usually able to produce much better divergence.
 
DTR

DTR

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Joined
Jun 24, 2010
Messages
5,684
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Yea it looks like he is not being honest about the wavelength. That is a module designed to hold a diode for one as I have a few of them sitting here. The picture shows the how thick the beam is and the color looks 445 to me. Plus I doubt you are going to get a 200mW 470nm for $79.

kgrhqzi4fjiivhpbqwfohci.jpg
 
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