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Old 09-29-2007, 04:08 PM #1
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Default Raster scanning

looks much better in real life but you get the idea

http://s80.photobucket.com/albums/j1...nt=Cap0027.flv


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Old 09-29-2007, 04:14 PM #2
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Default Re: Raster scanning

I didn't really know what to expect. I thought a big dread rasta lighting a fat one with his laser.

but [smiley=thumbup.gif] amazing
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Old 09-29-2007, 04:17 PM #3
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Default Re: Raster scanning

you need good scanners and pangolin pmq12 or what ever its called for raster scanning
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Old 09-29-2007, 05:42 PM #4
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Default Re: Raster scanning

Quote:
Originally Posted by andy_con
you need good scanners and pangolin pmq12 or what ever its called for raster scanning
i would build a scanner myself if pangolin didn't cost so friggen much
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Old 09-29-2007, 05:48 PM #5
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Default Re: Raster scanning

theres other stuff from pangloin.

puls they do a dac for 250 now
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Old 09-29-2007, 06:14 PM #6
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Default Re: Raster scanning

Well, it sure does look good (and promising!!!)

How many colors was that? What was used for beam deflection? The pangolin?

What is the pangolin, the DA-Converter?!?


But, pretyy cool!
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Old 09-29-2007, 06:27 PM #7
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Default Re: Raster scanning

As soon as I can figure out a good, relatively cheap solution to raster scanning (likely in a few years :P ) I'll post a how-to on building a raster laser display head. For now, all I can do is warn you that this one won't be easy. It's sure to require high precision and will be high difficulty.
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Old 09-30-2007, 04:19 PM #8
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Default Re: Raster scanning

Quote:
Originally Posted by philguy
Well, it sure does look good (and promising!!!)

How many colors was that? What was used for beam deflection? The pangolin?

What is the pangolin, the DA-Converter?!?


But, pretyy cool!
only RGY

beam deflection??? what????

pangolin make the best laser show DAC and software in the world.


Quote:
As soon as I can figure out a good, relatively cheap solution to raster scanning (likely in a few years ) I'll post a how-to on building a raster laser display head. For now, all I can do is warn you that this one won't be easy. It's sure to require high precision and will be high difficulty.
what???

a raster laser display head???

all you need is 30k scanners
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Old 09-30-2007, 05:01 PM #9
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Default Re: Raster scanning

30k scanners, 11MHz blanking, and a controller capable of accepting and processing data at a rate of over 170MHz for full DVD resolution raster with 16-bit color and full framerate. That's my goal.
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Old 09-30-2007, 06:31 PM #10
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Default Re: Raster scanning

Quote:
Originally Posted by The Grey Fox
30k scanners, 11MHz blanking, and a head capable of accepting and processing data at a rate of over 170MHz for full DVD resolution raster with 16-bit color and full framerate. That's my goal.
A head????

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Old 09-30-2007, 07:36 PM #11
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Default Re: Raster scanning

what??? 30k scanners are fast enough for raster scanning? Are you serious?!?

Now besides that, what does the 30k actually mean? Move to 30.000 points per second???


What I meant with "beam deflection" is, what is used to "deflect" or "civert" the beam - i.e. move the dot on the wall.
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Old 09-30-2007, 08:12 PM #12
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Default Re: Raster scanning

That is absolutely incredible. Any chance you can give us some more info on the setup there Andy?
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Old 09-30-2007, 08:45 PM #13
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Default Re: Raster scanning

ok the scanners in that video were DT40pro's.

the software was the pangolin errr... pmq12 dont know its correct name. the top dac and software the one that costs like 6k

believe its a cni green and maxi reds.

if you scroll down to nearly the bottom here

http://www.laser-man.co.uk/2006/inde...&Itemid=56

look for Jem's RGB, DT40pro scanner, thats the scanner that did the rastering
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Old 09-30-2007, 09:10 PM #14
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Default Re: Raster scanning

Quote:
Originally Posted by andy_con
A head????
The controller, galvos, and blanking device. Sorry.
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Old 09-30-2007, 09:18 PM #15
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Default Re: Raster scanning

Quote:
Originally Posted by philguy
what??? 30k scanners are fast enough for raster scanning? Are you serious?!?
For full speed DVD an 18k is enough to handle vertical positioning. Horizontal would require a high-speed spinning mirror. That's far out of range for any galvos.

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Old 09-30-2007, 09:20 PM #16
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Default Re: Raster scanning

controller, galvo, blanking device???

are you a newbie at scanning???

laser modules have ttl or analoge modulation, which is blanking.
the DAC + software controls blanking
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