tedcs
0
- Joined
- Jul 27, 2012
- Messages
- 48
- Points
- 18
One would need to be far enough away as to give a good head start, in the event that it does not go well.And from how far away would you propose performing said haircut?
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One would need to be far enough away as to give a good head start, in the event that it does not go well.And from how far away would you propose performing said haircut?
Do not be lazy guys!
Show all your approaches to be understandable for an engineer
[...]
Do we speak about patents and hide details here? I doubt it!
And... after knife edging will the fast axis divergence will be tamed? I doubt it!
I hate beam breakout.If using only a telescope with a long range beam being the goal I suppose you would want to use 24 of the longest FL lenses possible and a long telescope but won't the aggressive uneven divergence of each beam cause breakout in reasonably short distance ?
But if a big zoomable spotlight was the goal .........
I am tempted to buy one of these moving head units and swap the leds for the laser bank, with 24 long FL lenses.
youtube: 6SN9Ddiz57Q
OK...U'z guys confuse me...it happens !!!....SO...what would be the outcome.... the 24 LD array ...per tedcs....has a Nearfield footptint of 14mm x 18mm....OK....I would take a SWAG.....25.4 mm Dia Convex lenses....MMMMmmmm 75mm F.L. ????? Bet we could locate surplus.....cheap !!!
To those of you who have popped for the expensive array.....Hey.....for 20 or 30 bucks....try the Telescope set up.
As "Dr Fraunk N Steeen " would say.....
" It Could Work " !!!! I look at the Red array....BUT THEN....Those beams start out fairly X=Y divergent... But...well so what... See the Venn Diagram below !!! SO ....so what....
row 1 thru 4 bleed into row 5 thru 8 bleed into row 9 thru 12 bleed into row 13 thru 16 bleed into row 17 thru 20 bleed into row 21 thru 24
The Telescope optics combine the array's divergent behavior/nature.....and perhaps....we derive a somewhat solid looking compound set of beamlets !!!
Dunno....Easy enough to try !!! I am either right....or sadly very wrong !!! Good Hunting !!
CDBeam
OK...U'z guys confuse me...it happens !!!....SO...what would be the outcome.... the 24 LD array ...per tedcs....has a Nearfield footptint of 14mm x 18mm....OK....I would take a SWAG.....25.4 mm Dia Convex lenses....MMMMmmmm 75mm F.L. ????? Bet we could locate surplus.....cheap !!!
To those of you who have popped for the expensive array.....Hey.....for 20 or 30 bucks....try the Telescope set up.
As "Dr Fraunk N Steeen " would say.....
" It Could Work " !!!! I look at the Red array....BUT THEN....Those beams start out fairly X=Y divergent... But...well so what... See the Venn Diagram below !!! SO ....so what....
row 1 thru 4 bleed into
row 5 thru 8 bleed into
row 9 thru 12 bleed into
row 13 thru 16 bleed into
row 17 thru 20 bleed into
row 21 thru 24
The Telescope optics combine the array's divergent behavior/nature.....and perhaps....we derive a somewhat solid looking compound set of beamlets !!!
Dunno....Easy enough to try !!! I am either right....or sadly very wrong !!! Good Hunting !!
CDBeam
Got Dramamine?30 bucks optics for someone who was already able to pay 400 for the laser source? 115W? Hold me, I am dizzy.
Yes, this will to some extent work at the end but sorry, Bob, to remind you about 2 things:
-24 diverging beams will stay 24 (less diverging) beams with huge gaps between and not one more or less homogenous beam I tried to imagine how to make.
-with spherical lenses only beams close to the lenses centers will stay parallel and collimated, outer beams will focus not far away and then diverge (see aberration).
I'll write when I get a clue.Well, we could try to make a Telescope with Aspherical lenses but I do not know where they are to get (except of tiny size like G-2). Maybe from Canon cameras? Indeed, if G-2 would be 25 or 75mm in diameter, a Telescope made with them might work fine...maybe...only experiment would tell...
AH, yes, thank you for that. I watched Drake's video about 2 weeks ago. I then, noticed on eBay that the NUBM34T is available. I was powerless to resist.Here is one guys practical solution for an NUBM31T array hand held demonstration laser-- reality of lens problems focusing an NUBM31T and lack of ability to combine beams discussed.