Search found 126 matches
- Sun Apr 21, 2013 2:04 pm
- Forum: General Holography
- Topic: Display Holography
- Replies: 9
- Views: 3661
Display Holography
Well, sure Colin made a copy before he took it down...
- Fri Apr 19, 2013 8:24 am
- Forum: General Holography
- Topic: Display Holography
- Replies: 9
- Views: 3661
Display Holography
Well, the wiki seems gone for good
- Thu Feb 21, 2013 5:18 am
- Forum: Beginning Holography
- Topic: how short must the exposure be to ...
- Replies: 12
- Views: 8160
how short must the exposure be to ...
I have dusted off and posted the paper on scanned Holography and Its Application on my web site, along with images done in this manner. http://nlutie.com/ewesly/PreambleQuScan.html It's hard to believe that we did this over 20 years ago! This is nice, Ed... Whatever happened with this? Any google s...
- Thu Feb 21, 2013 4:02 am
- Forum: Holography Contest
- Topic: The Non Contest
- Replies: 190
- Views: 177207
The Non Contest
Hey guys, it seems that box is a must see! I'd would be great if at some of the stops one of you could make and share some photos!
- Thu Feb 21, 2013 3:59 am
- Forum: Beginning Holography
- Topic: Home Optical Table
- Replies: 30
- Views: 15771
Home Optical Table
Thanks, John, Dinesh!
- Thu Feb 21, 2013 2:11 am
- Forum: Beginning Holography
- Topic: Holograms trobuleshooting help
- Replies: 4
- Views: 3504
Holograms trobuleshooting help
Its hard to say, but i'm going with mode hopping. be sure to also blacken out the leading edge of the film plate with some black tape or paint marker as this will help with some stopping the light entering the edge of the hologram ............... Yep, Milan also suggested mode hopping or non-single...
- Thu Feb 21, 2013 2:05 am
- Forum: Beginning Holography
- Topic: Holograms trobuleshooting help
- Replies: 4
- Views: 3504
Holograms trobuleshooting help
Arturo the plate on this setup isn't moving down? The edge of plate may be need to be secured and resting on the left side onto mirror? Sergio, I don't think the plate is moving down, but it might :oops: . As you can see in the first picture there is a grove along the base where the plate is 'inser...
- Wed Feb 20, 2013 9:49 am
- Forum: Beginning Holography
- Topic: Holograms trobuleshooting help
- Replies: 4
- Views: 3504
Holograms trobuleshooting help
Hi, I have this single beam transmission hologram made on litiholo photopolymer. It is the most basic bypass configuration, no mirrors to get lighting from the right position, no care at all on polarization/Brewster angle, plate edges not covered... All of which surely would improve the results. But...
- Wed Feb 20, 2013 9:32 am
- Forum: Beginning Holography
- Topic: Home Optical Table
- Replies: 30
- Views: 15771
Home Optical Table
Well, if you made the master reflection with a split beam you could get it nice and bright enough to have good results. In fact I am sure some of the mass production techniques do exactly that. But if you try taking a SBR (Single Beam Reflection) in silver and use it as a master you will have diffi...
- Wed Feb 20, 2013 4:07 am
- Forum: Beginning Holography
- Topic: Home Optical Table
- Replies: 30
- Views: 15771
Home Optical Table
I have not read this thread in a while, but the beauty of DCG is you do not need to create transmission masters if you don't want. DCG is efficient enough to make reflection masters, then a contact or proximity copy for your image planed holograms. Both of those holograms can be SBR's. Thanks John....