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Need some opinions for a build

anton

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I'm looking to build a 405nm laser with the 16x diode pretty soon but I'm not sure what lens is best. I know the difference between the G2 and the 3 element lens but I just can decide on one. I'd like your opinions because I'm finding both lenses being used for this diode.
 



Mosc007

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If you can afford the G2 lens is will be about the best you can get for a 405nm build.
 

Lifetime17

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Hi,
Yes the G2 is what you want for the 405nm diode perfectly paired .. This one i built with a custom full copper sink and knob with a G2 lens . They burn like mad.

Rich:)
 

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Lifetime17

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Hi ,
No not really aluminum is fine to , you can get away with an aluminum sink in a C6 size host with respectable duty cycles. I just mentioned copper because it's heat sinking capabilities. Even an aluminum sink with a
Copper core pressed in will work also.
Like this but on a smaller scale.
Rich:)
 

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anton

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Hi,
Yes the G2 is what you want for the 405nm diode perfectly paired .. This one i built with a custom full copper sink and knob with a G2 lens . They burn like mad.

Rich:)

Is a copper heat sink necessary for a decent duty cycle? I've seen builds with just an aluminum heat sink.
 

diachi

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Is a copper heat sink necessary for a decent duty cycle? I've seen builds with just an aluminum heat sink.


Should still get a decent duty cycle with Aluminum and a 16x, copper would improve that further.
 

paul1598419

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I'd be conservative with the driver current as these diodes fail often when over driven to 1 watt. The G-2 lens is AR coated for 405nm and is, of course, your best solution for a lens of this build.
 




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