Can we really « not » bleach a hologram ??
I thought light would not penetrate the braggs structure and would not play back as 3d image ?
Search found 77 matches
- Sun Sep 23, 2018 2:11 pm
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8248
- Sun Sep 23, 2018 6:45 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8248
Re: Troubleshooting : emulsion peeling off
I got confirmation by manufacturer it was a problem during coating ( the prepared & cleaned glass waited too long before coating ) : ultimate holography
A new batch is coming in replacement, m. Gentet was really quick and helpful in his support
I’ll try GP2 to compare the difference with D19
A new batch is coming in replacement, m. Gentet was really quick and helpful in his support
I’ll try GP2 to compare the difference with D19
- Sat Sep 22, 2018 12:47 pm
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8248
Re: Troubleshooting : emulsion peeling off
Meanwhile I got an answer from manufacturer !
I was bad luck in process the glass plate had an issue during coating ! Fresh & clean are being re-shipped
I was bad luck in process the glass plate had an issue during coating ! Fresh & clean are being re-shipped
- Sat Sep 22, 2018 8:30 am
- Forum: Beginning Holography
- Topic: Troubleshooting : emulsion peeling off
- Replies: 9
- Views: 8248
Troubleshooting : emulsion peeling off
Hi guys ! Over the last 3 years I continued my learning of holography & related stuff, today, I encountered an issue for the first time ever, it seems the emulsion is pealing off the glass right after first soaking in developer : IMG_4391.JPG Any idea what's wrong ? is my developer too much conc...
- Thu Sep 20, 2018 3:14 pm
- Forum: Beginning Holography
- Topic: Improve depth & viewing angle on reflection holograms
- Replies: 3
- Views: 5134
Re: Improve depth & viewing angle on reflection holograms
Basically any white background and surrounding neige ngs stuff would do ?
What’s the mechanic ? We increase object beam intensity for lateral parts of it ?
What’s the mechanic ? We increase object beam intensity for lateral parts of it ?
- Thu Sep 20, 2018 9:16 am
- Forum: Beginning Holography
- Topic: Improve depth & viewing angle on reflection holograms
- Replies: 3
- Views: 5134
Improve depth & viewing angle on reflection holograms
Hi there ! I'd like to improve my Denisyuk set up from this : Fig_07.jpg fig1 To something like this : Fig_06.jpg fig2 My belief is the 2nd set-up here would allow deeper scenes to be recorded without the hazzle of going through a master H1 then H1/H2 process. (at least my readings on this page http...
- Mon Sep 17, 2018 3:06 pm
- Forum: Beginning Holography
- Topic: Crowd-fund & share your passion
- Replies: 2
- Views: 5091
Re: Crowd-fund & share your passion
These are simple reflection deniyusuk holograms :-) No transmission / master here I used : Plates from Yves Gentet’s Ultimate U08M with R Sensitivity and 70nm preshift ( makes the developed hologram yellow-green instead of red) Laser is a Hene uniphase 1125 which I believe to be something like 5-6 m...
- Mon Sep 17, 2018 5:14 am
- Forum: AgX
- Topic: Which chemistry for "HOLOFILM 250 PAR" from Applied Holographics PLC ?
- Replies: 34
- Views: 59316
Re: Which chemistry for "HOLOFILM 250 PAR" from Applied Holographics PLC ?
Hey ! I just realized an obvious and cruel truth. I won't be able to record satisfying holograms on this HOLO 250 PAR film with my HeNe laser ! The Holo film is designed to be sensitive in the very narrow area of 694nm (meant to be used with pulsed ruby) where my HeNe is most likely around 632nm : w...
- Sun Sep 16, 2018 11:05 am
- Forum: Beginning Holography
- Topic: Crowd-fund & share your passion
- Replies: 2
- Views: 5091
Crowd-fund & share your passion
Hey ! When I was trying to find money to buy a a new power supply for a laser, it came to my mind that I never tried crowd-funding before. Guess what, I gave it a try : https://fr.ulule.com/holographie-laser/ And... it worked ! I reached my initial goal in like 2 days ! This campaign is aimed at fre...
- Sat Jul 14, 2018 1:29 am
- Forum: Events, announcements, and news
- Topic: ISDH 2018
- Replies: 18
- Views: 48998
Re: ISDH 2018
Any ISDH 2019 planned ?