Mitsubishi ML520G71...Red Holy Grail or Flashlight Fail ??

[CDBEAM]

YES...Thanx PB for more information to build on....er....ah....." Another Brick in the Wall ".....or...." Roll that Beam(n) footage !!"

BEAM

[norty303]

Hiya all, I've been following this thread on and off, but I've got lost along the way a bit.

What is the purpose of the correction optics before the cube? Could you not use a waveplate on one pre-cube then use a single correction optics post-cube? O(R is this what Andy was suggesting when he posted his parts list?

[badger1666]

Norty it would be near impossble to do it that way as they need to be
The exact same distance from the first collimator or one beam will be slightly larger the other
ie for mine its 64mm to the first lava lens, to get equal beam sizes and divergrnce

[polishedball]

Hiya all, I've been following this thread on and off, but I've got lost along the way a bit.

What is the purpose of the correction optics before the cube? Could you not use a waveplate on one pre-cube then use a single correction optics post-cube? O(R is this what Andy was suggesting when he posted his parts list?

I have done it this way with the 445's, you just slide one mount pre cube to compensate. I plan on trying it with these once my waveplate arrives.

[norty303]

Yes, that would be my immediate way of solving it, by simply making the path lengths equal, pre-cube. Surely that could make the design smaller overall too? And cheaper?

Tempted to have a play, I have a broadband cube and correction optics left over from the last group buy in the 445 frenzy.

[badger1666]

as long as you got the lava lens and some time for a lot of fiddling you should be good, though you will also need one of daves short fl lens and speical diode mounts
to get the best beam, but just short fl lens will get you by

Yes, that would be my immediate way of solving it, by simply making the path lengths equal, pre-cube. Surely that could make the design smaller overall too? And cheaper?

Tempted to have a play, I have a broadband cube and correction optics left over from the last group buy in the 445 frenzy.

[Stoney3K]

Ok-I'm lost .. Badger now has >800mw with a dual diode setup @ ~1 mrad divergence .. who's the winner so far .. ? My HL6388/405G2 setup isn't going to cut that record . . We need a spreadsheet or something ..

I'm starting to think something very fundamental here:

Nail, meet 660nm coffin.

OK, so we've got blue down, red down, only one colour left... Anyone up for bets on when the first direct green with decent power is going to show up?

[steve-o]

The dpss greens are cheap enough.. dpss vs diode.. what's the diff except for color. Good luck getting lava-lenses.. I ordered mine last month ... still waiting .. c/c hasnt been charged tho .. has he dropped off the map ?
660 and 638; Ive read that they just add together beautifully to expand the color palette .

[polishedball]

The dpss greens are cheap enough.. dpss vs diode.. what's the diff except for color. Good luck getting lava-lenses.. I ordered mine last month ... still waiting .. c/c hasnt been charged tho .. has he dropped off the map ?
660 and 638; Ive read that they just add together beautifully to expand the color palette .

Yes love them mixed, it is just way to orange without 660.

I would like DI green, just for the stability. My ambient temp messes with DPSS

[steve-o]

DI green is in infancy stages, I believe. It's gonna take a while for it to develop to mass prod probly ..