After these attempts I’ve continued refining my index matching methods and I’m two for two. I made a hologram this morning with the second piece of film that I’d TEA treated yesterday and the final hologram is nice bright and clear.
On the other hand, I’ve got to improve my pre-index methods as there were several small pieces of lint and one thread that was apparently on the film before I put it on the glass.
Anyone have any foolproof methods for index matching sheets of PFG-01 roll film to glass? For 4×5" sheets I’d used both mineral oil and lamp oil with decent success, although I detest the messiness of it. Continue reading Index matching
I’ve been working on a commission from a co-worker for a bit now and the last few days have been spent doing tests (I generally manage to get one in a day during the week) of new bleaches and color swelling.
This weekend was a good one for holography (as well as enjoying the weather with wifey).
On Saturday I made a large copy of the Jesus-gram (which I gave to Andres) and I later got a wild hair and decided to take the time to re-do my canopy. I haven’t been happy with it because I originally made it shorter than it needed to be and there was one corner that was hard to get past.
Over the weekend I had the time to start testing the latest batch of photopolymer from Polygrama and I have to tell you that it was a pleasure to work with. But let me back up a bit and take you to the beginning of the testing session.
As others are aware, it took way too long to finish (partly because I was being over-ambitious in what I wanted to do and partly because it was an open-ended “artistic” endeavor) but the PCGG-II hand-off hologram is complete and in the Padiyar’s possession.
As some already know, this paper took forever to finish but it’s done and ready for the world to read.
If you’ve got any comments or questions just let me know.
Here’s an excerpt from the the introduction:
This paper describes the methods used by myself and Andres Ghisays in building our latest tables as well as a set of recommendations for those considering doing the same.
Hexcel is a honeycomb material often used by the aerospace industry for making structural panels that are very light but extremely stiff or strong. They’re used in aircraft wings, walkways, satellites, Moon-bound spacecraft and can even be found in many cars.
Hexcel honeycomb (hereafter just referred to as "Hexcel") as discussed here is a flat panel made out of aluminum in the shape of a honeycomb.