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Raster scanning






Y

yew.sir-name

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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
 
andy_con

andy_con

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you need good scanners and pangolin pmq12 or what ever its called for raster scanning
 
MarioMaster

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andy_con said:
you need good scanners and pangolin pmq12 or what ever its called for raster scanning
Click to expand...

i would build a scanner myself if pangolin didn't cost so friggen much :(
 
andy_con

andy_con

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theres other stuff from pangloin.

puls they do a dac for £250 now
 
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philguy

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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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Greyfox

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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.
 
andy_con

andy_con

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philguy said:
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!
Click to expand...

only RGY

beam deflection??? what????

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


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.
Click to expand...

what???

a raster laser display head???

all you need is 30k scanners
 
G

Greyfox

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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.
 
andy_con

andy_con

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The Grey Fox said:
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.
Click to expand...

A head????
 
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philguy

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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.
 
G

Greyfox

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philguy said:
what??? 30k scanners are fast enough for raster scanning? Are you serious?!?
Click to expand...

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.
 
andy_con

andy_con

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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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