Pangolins New Beam Brush Hardware ! & audiance scan !

[-bart-]

Not too bad.
No really, I ve built a proof of concept with two bluraysleds. It works!
Aligning is a real pain in the ass because of the short FL lenses.
I built a 1:1 telescope one fixed and one actuated lens.
Nice thing is besides focus you can swiffel the lens along two axises.
So you can control the elipsity of the beam too.
The thing is not too fast and you have to stay clear of large amplitudes and the resonance frequency.
Once the coil jumps out of the magnetic field, it is broke, you'll have to replace the sled, and align it all over again.

[planters]

PJ,
That video is the only example I've seen of the a de-focusing laser brush and I am not too impressed. It's not bad, but it looks like the beam effects could be approximated by a small dither with fast scanners. Just blurring geometric shapes doesn't look very good and seems to work against all the effort to achieve tight, far field spots. Maybe with graphics a large flying spot would allow shapes to be filled in using fewer and more widely spaced lines and by unloading the scanners would give richer images. No?

I may have missed it, but are there more examples of the Beam Brush available? I've been watching for this since SELEM.

[dsli_jon]

Good Sire -

...I am not too impressed. ..are there more examples of the Beam Brush available?

Here's some data you need to see:



... IIRC, Sir Greg Mak sent these to me a jillion-years ago, when asking about the 'approved audience-scanning projector' that was initially-slated to incorporate the 'full' Beam-Brush tech ..(lens / coil-unit, not-just software + PASS...again, iirc..)...and while the graphic-fx-value might be seen as 'cute' and possibly not all that utile, I'm sure you can 'extrapolate' what you're seeing here into what an awesome-tool this will be for making audience-scanning safe-r - doesn't mean we'll be able to 'free for all', but, imo, it's HUGE-progress in the right direction, and it's "tangible tech" that the CDRH will be able to get their minds - and sci-calcs-around...

The hope is, when this complete-system is 'ready for prime-time', this will help us (the Sho Industry at-large..) make significant-strides towards getting the CDRH to re-write / relax the standards to allow for more 'reasonable' aud. scanning limits, a la Europa... was cheered to recently see them 'relaxing' the former-requirement for reporting every-single show, etc - in-part, that has to do with them being hopelessly-understaffed, but, regardless, if they are starting to become willing to 're-consider' the stringencies / relevance of certain Regs, if *anything* stands a chance of helping us loosen their 'iron grip' on MPE-limits, here, this'll be it...

If only cloning were possible, eh, Bill? (..side note to Pangoman... - Actually, *ahem* while I (maybe) have / will-get your attention, here, Mr Bill.. - one question in my mind is, what will the Beam-brush mech-side (lens / coil, etc..) do to a converged RGB, etc source? Obviously, no-prob for a mono-color set-up, or, heh - I'm sure an Ion beam ...but, what will the lens 'do' with a converged 3 or 4-color? Is-that (perhaps) what is still being 'worked-out'?

..I'd imagine that has-to be a challenge - finding one 'magic' lens, that is 'low-mass-enough', yet with the correct properties to do what it's 'supposed to do' optically, in this whole-enchilada, and not 'blow-apart', say, a 6-up Red, or 4-up Blue, etc - I'd imagine it would be 'not so-tough' for, say, a single-beam blue (ie: 473 DPSS) + a single-diode Red + G, etc - but what about 'multi-ups' - all-then, converged? Problems? Or, is there a 'magic-bullet' achromat out there? Just curious...

Sir Eric, Hope this was 'enlightening'.. Dudulun-tshhh!
j