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

[steve-o]

Maybe there's some different manufacturers as the one I filed down appeared to be plated brass

Hmm, that's strange ..

[badger1666]

just got my dual fitted to my projector , and banging out 1w
this red is deffo not for graphics ,but sure is good for beam shows.
also i think somthing on mine has shifted a bit, beams not as good when it was on the test bench
tec cooled to 19deg c , well here's the pics you all want , i am just glad the projector is bangin out >3w
even if the beam look a little fat at times.

[steve-o]

Beautiful!!! //**applause**// 'Gratz Badger, looks great! I may have some questions in a minute ..

[logsquared]

Looks great! A lot better than the one I "slapped" together.


With the greater mag telescope it does ok with graphics. Actually, the divergence is half the green and half the 445 with o-like collimator. Where did you get the waveplate?

[steve-o]

@ Badger; Your dual red is doing 1W after the PBS? You're using G71s right? Daves lenses.. oh, and what current? ..told ya i'd have questions ;]

[badger1666]

got the waveplate from daves gb a while back, give him a shout he may have 1 or 2 left
what lens are you using ? i could not geta usable beam with the first cyl lens that close to the collimator.

[CDBEAM]

Test set up;

LSP (Dave) Short FL Collimation Lens @ 2.9 fL
Distance between Cylinderical lenses and Collimation Lens @ 60mm
LD @ ML520G71

Divergence without correction: 9.58 mrad

Near field expanded (corrected) slow axis width, cyls 60mm from collimator: 4.25 mm x 4.25mm

Far field corrected slow axis width 13.72 meters away @ 20mm x 10mm....or 1.14mrad

I am convinced the LSP Colli lens delivers better results than the 405 G 2

BEAM

[badger1666]

yes 1w after the pbs, yes g71's, and daves lenses, current 650ma each , thought i said 1w it was aprox, going by previous tests
so i just checked out of the front of the projector it was just under 1w (.994) so i cranked them up a bit to 700ma each , see pic

@ Badger; Your dual red is doing 1W after the PBS? You're using G71s right? Daves lenses.. oh, and what current? ..told ya i'd have questions ;]

[logsquared]

got the waveplate from daves gb a while back, give him a shout he may have 1 or 2 left
what lens are you using ? i could not geta usable beam with the first cyl lens that close to the collimator.

I only picked up a 660 in the group buy. I forgot 640's were also in the GB. Maybe he has some left? I am not using the lava telescope lenses. So, I can put the first lens close to the collimator. The build is using the 405-g-2 lens. The 405-g-2 lens works well in this set-up.

[badger1666]

please do tell more about your lens ?? magnification, where you get them ect ect.