Need some opinions for a build

[anton]

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]

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

 

[Lifetime17]

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

 

[Lifetime17]

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

 

[anton]

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]

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]

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.