Laser POV

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LightningCrash
 
Posts: 6
Joined: Wed Jan 24, 2007 2:49 pm

Laser POV

Post by LightningCrash »

I had a thought, after reading about the laser projector on Hack A Day:

Why not make a POV with Lasers?

I'm not sure what the power requirements are for laser diodes, but I just thought it would be neat. You could display your image on any flat surface, from a reasonable distance.

Just a thought I had. Every day we get a little bit closer to my dream: having frickin' sharks with frickin' laser beams attached to their frickin' heads! And PIC on earth.

Psymiley
 
Posts: 139
Joined: Thu Oct 05, 2006 4:53 am

Post by Psymiley »

Possible :P

Started building one using an old harddisk and spinning the platter with a mirror on top, at a constant speed to allow the laser beam to 'scan' across the wall for X axis.

The w/r arm obviously moves another mirror on the Y axis, so you can create o-scope images on the wall.

To go POV with it:
To get some accuracy on it, control for the beam on/off and the usual RPM detect (beam break) on the platter. So a PIC or AVR can do the work here.

If you can scan quickly enough to generate a square blob on the wall, your virtually there. Workout the lines you have then on every line, turn your laser on/off at the points you want the image.

Tada! - crude television, with a laser instead of cathode ray.

gmg
 
Posts: 6
Joined: Wed Jan 17, 2007 1:26 pm

Post by gmg »

There's this one http://cscott.net/Projects/FabClass/3/ and another laser/spinning mirror/clock project out there that I can't find at the moment.

adafruit
 
Posts: 12151
Joined: Thu Apr 06, 2006 4:21 pm

Post by adafruit »

i do know some people who are working on this! so we will see whats up & if they are successful :)

povpro
 
Posts: 38
Joined: Tue Jul 11, 2006 5:07 am

not exactly the same thing, but ...

Post by povpro »

There are some people who are really into home-brew laser displays -- they
even build their own galvanometers! For instance, check out:

http://elm-chan.org/works/vlp/report_e.html

http://www.joeyhagedorn.com/v/electronics/Lasergalvo/

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guess_whoǃ
 
Posts: 49
Joined: Thu Mar 08, 2007 4:20 am

Post by guess_whoǃ »

Remember "Real Genius?"
Oh, wait. That was a CALTECH movie. Forget it.

magician13134
 
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Joined: Wed Jun 13, 2007 9:17 am

Post by magician13134 »


LightningCrash
 
Posts: 6
Joined: Wed Jan 24, 2007 2:49 pm

Re: Laser POV

Post by LightningCrash »

Looks like Sony's gonna come to market with this.
http://www.engadget.com/2010/02/03/sony ... s-compact/

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