question

[juanma666]

Hello friends.

Beginner's question.

What beam is more divergence 445 or 470nm?



Best Regards.

 

[jimdt7]

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

Jim

 

[juanma666]

Thank You, Jim.

I want to know divergence of this diode, but it doesn't specify it.

http://www.ebay.es/itm/470nm-200mw-...ngle_Units&hash=item3ccac667ed#ht_1458wt_1160

I have this 445nm that he/she has enough divergence...

http://www.ebay.es/itm/800mw-445nm-...ngle_Units&hash=item3a689dbb3b#ht_1822wt_1160


I want to compare them, for a possible substitution.




Best Regards.

Juanma.

 

[juanma666]

Thank You, Jim.

I want to know divergence of this diode, but it doesn't specify it.

http://www.ebay.es/itm/470nm-200mw-...ngle_Units&hash=item3ccac667ed#ht_1458wt_1160

I have this 445nm that he/she has enough divergence...

http://www.ebay.es/itm/800mw-445nm-...ngle_Units&hash=item3a689dbb3b#ht_1822wt_1160


I want to compare them, for a possible substitution.




Best Regards.

Juanma.

 

[jimdt7]

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

 

[juanma666]

Sorry.

I have duplicated the answer.

 

[InfinitusEquitas]

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]

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.