Search found 51 matches

by Loic74
Mon Apr 19, 2021 7:41 am
Forum: For Sale / Want to Buy / Trade
Topic: Osram PL530 530nm laser diodes tested @75mw SLM
Replies: 72
Views: 163306

Re: Osram PL530 530nm laser diodes tested @75mw SLM

Thank you @Soda and @Holomaker, I am surprized a regular diode could not be modulated fast enough for pico-displays. What's more, losing single longitudinal mode would probably be a bonus in case of a pico-projector since they get into large efforts to despeckle the images. But I am probably missing...
by Loic74
Wed Apr 14, 2021 9:14 am
Forum: For Sale / Want to Buy / Trade
Topic: Osram PL530 530nm laser diodes tested @75mw SLM
Replies: 72
Views: 163306

Re: Osram PL530 530nm laser diodes tested @75mw SLM

Greetings, Just received my RGB module from Dave and am now reading through the various resources on how to power it up. Anyone knows if this laser will maintain beam characteristics (Power, SLM, coherence length...) if modulated at a few KHz? I'd like to try and use it as a cheap source for my holo...
by Loic74
Sat Apr 03, 2021 3:31 pm
Forum: Gallery
Topic: Skulls!!
Replies: 21
Views: 114840

Re: Skulls!!

No, no, no, no. I need to hear more about this holoprinter you have DIyed. Sure, what would you like to know in particular? It is basically the same technique as developped by Yamaguchi in 1990, then refined by ZEBRA in the late 90s. As seen in the video in my previous post, a 3D rendering software...
by Loic74
Sat Mar 27, 2021 2:34 pm
Forum: Gallery
Topic: Skulls!!
Replies: 21
Views: 114840

Re: Skulls!!

Yet another skull.
Printed on my DIY HoloPrinter on polymer film
Full video here: https://youtu.be/EpnnGGCmX-I
Skul_1.jpg
Skul_1.jpg (481.8 KiB) Viewed 49062 times
by Loic74
Sat Oct 31, 2020 1:09 pm
Forum: General Holography
Topic: GEOLA News_photopolymer Bayfol HX200 already available in small quantities
Replies: 22
Views: 12262

Re: GEOLA News_photopolymer Bayfol HX200 already available in small quantities

Some tips for HX200 and its color tunability in the enclosed table below, good luck! Thank you very much Ramunas, could you however detail a bit how to use this info in practice? Are these films which you are supposed to laminate onto the HX200 to achieve the wavelength shift? Before or after the e...
by Loic74
Thu Oct 22, 2020 3:53 am
Forum: Gallery
Topic: First non-terrible color hologram
Replies: 5
Views: 12213

Re: First non-terrible color hologram

Thanks for those precisions. I found the link to that document, on Ultimate's website: http://shop.ultimate-holography.com/img ... 0color.pdf
by Loic74
Tue Oct 20, 2020 3:37 am
Forum: Gallery
Topic: First non-terrible color hologram
Replies: 5
Views: 12213

Re: First non-terrible color hologram

Am talking about that document attached but somehow I can't find it on their website, I cannot recall where I got it from.
I think you are supposed to balance first the R+G then add a dash of blue... good luck :)
Processing color.pdf
(801.74 KiB) Downloaded 650 times
by Loic74
Mon Oct 19, 2020 3:42 am
Forum: Gallery
Topic: Skulls!!
Replies: 21
Views: 114840

Re: Skulls!!

AH, the Aztec crystal skull I presume! ;)
Here is my contribution to skulls, color Denisyuk, although not human.
Full video here: https://www.youtube.com/watch?v=BW12ktp8LmQ
Skull.png
Skull.png (480.21 KiB) Viewed 49641 times
by Loic74
Mon Oct 19, 2020 3:19 am
Forum: Gallery
Topic: First non-terrible color hologram
Replies: 5
Views: 12213

Re: First non-terrible color hologram

Nice one Tommy. I have not yet tried the 440-660 version of those plates, only the 440-700 with which I have obtained good results with the wavelengths you are using. Yves Gentet told me the red absorbant in the 440-660 version is very strong so you might have to pay attention to the color balance. ...
by Loic74
Sun Oct 18, 2020 2:31 pm
Forum: General Holography
Topic: RGB tests with HX200 photopolymer
Replies: 18
Views: 9551

Re: RGB tests with HX200 photopolymer

Has anyone tried this alternative: https://www.edmundoptics.fr/f/anti-stat ... zer/12948/ ?