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Old 04-14-2017, 08:28 AM #65
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Default Re: Radim's laser painting

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Originally Posted by Ricker View Post
Can't wait to see it, Radim!! Beyond excited!
Thanks. Here is it in my previous post.


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Old 04-14-2017, 08:43 AM #66
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Default Re: Radim's laser painting

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Originally Posted by Radim View Post
...I was thinking also about multiline behaviour of 589 nm Spartans, but the temperature was not that low, also about Fresnell's diffraction, but the shape of the pattern is not corresponding to it, or there might be some internal reflections in optics (beam expander), but the intensity and shape of this pattern does not seem to be corresponding to it. Any other ideas?
If the Spartan 589 was moving, it is probably from the pulses, they pulse the output to produce a higher peak power which appears brighter. But if I read your post correctly, this wasn't a moving beam, so not sure.
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Old 04-14-2017, 08:50 AM #67
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Default Re: Radim's laser painting

Quote:
Originally Posted by Alaskan View Post
If the Spartan 589 was moving, it is probably from the pulses, they pulse the output to produce a higher peak power which appears brighter. But if I read your post correctly, this wasn't a moving beam, so not sure.
I thought only Auroras were pulsed. Spartans should be CW or not? Anyway it was static beam. There are three more dots shown each has this secondary diffraction.

Edit: I did not noticed any pulses when I moved my Spartan earlier. I think it might be used for Auroras only due to small host and heat sinking which might be insufficient for higher powers of pump diode needed.
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Last edited by Radim; 04-14-2017 at 09:00 AM.
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Old 04-14-2017, 12:52 PM #68
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Default Re: Radim's laser painting

The Spartan doesn't appear to be pulsed like the Aurora. It is possible that it could be but at a much higher rate but I don't think so. The Spartan's heat management is adequate enough to allow CW operation so there should be no real reason for it to be pulsed.
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Old 04-14-2017, 06:02 PM #69
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Default Re: Radim's laser painting

I agree, Oliver. And I really do not think it is pulsed, I did not noticed any dim areas in light trail of the dot. Although I use it as static beam in my current artworks but I did enough light trails shots with it to notice it.

It is not really difficult to measure frequency of electricity network from sodium lamps with camera. Just move it when taking pic of the lamp and calculate it from exposure time and number of short lines in light trail you get. I did it long time ago. The same might be used to measure potential pulse frequency of laser. Maybe I try it but I doubt I get something else than just single line.
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"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
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LPF thread: Radim's laser painting
Latest laserpainting: The Surreal World
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Old 04-18-2017, 07:55 AM #70
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Default Re: Radim's laser painting

Quote:
Originally Posted by Radim View Post
Maybe I try it but I doubt I get something else than just single line.
I doubt you will either. I tested mine again and no pulsing was visible.

Very nice pics again Radim. I really like 'The fallen star'. 589 is beautiful enough as it is, without it emulating a sodium star.
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Old 04-18-2017, 09:14 AM #71
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Default Re: Radim's laser painting

Thanks, Oliver. 589 nm is just awesome. I wish I had some 50 W beast to get real sodium star on my paintings next to the light of stars hundreds and thousands years old. Still that could be nice idea to think how to get it projected somehow on sky with my Spartan. I need to think about some trick how to do it. Thanks for the idea.
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"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

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LPF thread: Radim's laser painting
Latest laserpainting: The Surreal World
Instagram: @radimmatera

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Old 04-18-2017, 09:28 AM #72
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Default Re: Radim's laser painting

No problem Radim. Wow, a 50W LGS in your shots would be amazing.
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Old 04-21-2017, 07:26 AM #73
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Default Re: Radim's laser painting

The weather is bad here. From the spring turning into full blossom and temperatures of 22 degrees Celsius it returned back to winter again with layer of snow, snowing, raining, strong winds, temperatures around zero and below. And forecasts are saying it will be worse (however I know how crystal ball works). Definitely nothing my lasers would enjoy. Especially my new 473 nm "Sky Beauty", who likes it a bit warmer and I would like to use her for a very special meaning in my artwork I'm working on right now.

The weather could be basically summarized with the joke I've read somewhere:
Me: "I bet you cannot fit all four year seasons into one week!"
Nature: "Hold my beer for a sec..."


But I do not waste my free time and develop and test new techniques of laserpainting and as mentioned I'm working on another artwork to be painted when the conditions will be better. I still have the nice effect discovered during my latest laserpainting attempts in my pocket plus studying much more effects theoretically and practically. I also study color meanings and their combinations more deeply and draw some potential schemes and work flows for the coming artwork. I think about it and what I would like to express with it a lot now. It is just being created in my mind.

For example I was playing with some diffraction gratings recently, here is my favourite effect:



It's mobile camera test shot just to capture the effect to be studied later, without any precision. I just thought you might enjoy it. I'm about to use it in the coming artwork likely.


I still have so many ideas and a lot of inspiration, every day something new appears in my head. Definitely more stuff than I have time to turn into artworks. But all of that is such a fun and enjoyment for me.

With my latest artwork "The Surreal World" I gained a very nice feedback and 100 likes on instagram (that's a lot for me ) even from various artists and galleries, what I appreciate a lot. Also a lot of people I meet is being interested and ask me for at least small prints. When I think about that my dream and maybe a long term goal would be to create enough good laserpaintings to find some gallery to host my first exhibition. ("Haha!") Maybe... Maybe... But that is something really out of my current capabilities yet, I think. More improvement, work and nights spent in the forest is needed to be good enough.

Just saying this thread is not going to die anytime soon. Maybe it will sleep for a while as some time is needed for finding intersection of good laserpainting conditions and allocated time to move the art from my head to real photo.

Thanks for your support also here and stay tuned for more...
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: The Surreal World
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 04-21-2017 at 09:33 AM.
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