[OT] Realtime Laser control

Feb 25, 2008 at 2:52pm

[OT] Realtime Laser control

A little question for laser afficionados or people with experience regarding to this.

I’m would like to control a laser in realtime, through DMX, and am wondering whether this is at all possible. Most laser use a set of stored frames which can be recalled / displaced, but not make these frames on the fly.

Maybe it is possible but I haven’t found any info on this as of yet. Any pointers, links, ideas,… are greatly appreciated.

regards,

Brecht.

#36038
Feb 25, 2008 at 5:08pm
#123396
Feb 29, 2008 at 11:08am

Thanks for the info!
I’m very new to this, so correct me if I’m wrong, but it doesn’t seem
to me that this would allow me to send jitter generated imagery in
realtime to the
laser…?

grtz. B.

On 25 Feb 2008, at 18:08, (())_n wrote:

> Hi Brecht,
>
> I was looking into this too. It seems possible to build a DMX
> shield for the arduino:
>
> http://flickr.com/photos/hcgilje/1953196159/
>
> http://www.arduino.cc/playground/DMX/DMXShield
>
> http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1201965408
>
> http://en.wikipedia.org/wiki/DMX512-A
>
> cheers
>
> (())_n

#123397
Feb 29, 2008 at 12:54pm

i am interested in this as well ,and just started to do some research about how to use laser with jitter.
are you trying to draw with a laser ?
or would you like to to create an rgb image with a rack of lasers ( which might be complex but that is what i am interested in myself )

Quote: Brecht wrote on Fri, 29 February 2008 12:08
—————————————————-
> Thanks for the info!
> I’m very new to this, so correct me if I’m wrong, but it doesn’t seem
> to me that this would allow me to send jitter generated imagery in
> realtime to the
> laser…?
>
> grtz. B.
>
> On 25 Feb 2008, at 18:08, (())_n wrote:
>
> > Hi Brecht,
> >
> > I was looking into this too. It seems possible to build a DMX
> > shield for the arduino:
> >
> > http://flickr.com/photos/hcgilje/1953196159/
> >
> > http://www.arduino.cc/playground/DMX/DMXShield
> >
> > http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1201965408
> >
> > http://en.wikipedia.org/wiki/DMX512-A
> >
> > cheers
> >
> > (())_n
>
>
—————————————————-

#123398
Feb 29, 2008 at 1:03pm

What I basically want to do is use a single color laser and draw
patterns which can change on a frame by frame basis.
The patterns need to be produced dynamically, i.e. they cannot be a
set of stored patterns in the laser which are recalled, translated,
deformed.
Al these effects should be done in jitter, with the realtime changes
in jitter communicated to the laser.

On 29 Feb 2008, at 13:54, karl-otto von oertzen wrote:

>
> i am interested in this as well ,and just started to do some
> research about how to use laser with jitter.
> are you trying to draw with a laser ?
> or would you like to to create an rgb image with a rack of lasers
> ( which might be complex but that is what i am interested in myself )
>
>
> Quote: Brecht wrote on Fri, 29 February 2008 12:08
> —————————————————-
>> Thanks for the info!
>> I’m very new to this, so correct me if I’m wrong, but it doesn’t seem
>> to me that this would allow me to send jitter generated imagery in
>> realtime to the
>> laser…?
>>
>> grtz. B.
>>
>> On 25 Feb 2008, at 18:08, (())_n wrote:
>>
>>> Hi Brecht,
>>>
>>> I was looking into this too. It seems possible to build a DMX
>>> shield for the arduino:
>>>
>>> http://flickr.com/photos/hcgilje/1953196159/
>>>
>>> http://www.arduino.cc/playground/DMX/DMXShield
>>>
>>> http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1201965408
>>>
>>> http://en.wikipedia.org/wiki/DMX512-A
>>>
>>> cheers
>>>
>>> (())_n
>>
>>
> —————————————————-
>
>
> –
> karrrlo
>

#123399
Mar 1, 2008 at 7:10pm

On Feb 29, 2008, at 8:03 AM, Brecht Debackere wrote:

> What I basically want to do is use a single color laser and draw
> patterns which can change on a frame by frame basis.
> The patterns need to be produced dynamically, i.e. they cannot be a
> set of stored patterns in the laser which are recalled, translated,
> deformed.
> Al these effects should be done in jitter, with the realtime changes
> in jitter communicated to the laser.

The following instructable uses a 35mm slide, but you can maybe find
an lcd display with video input that you can can project the laser
through instead. I have not tried this tho, just found it, and there
are some caution flags.

http://www.instructables.com/id/Laser-Image-Projector/

cheers

(())_n

#123400
Jul 29, 2013 at 2:51am

Hi Brecht, Kinomatic, Karrlo – did you get this to work? I’m working on something similar at the moment

#257424

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