Index matching, cont

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.

Fortunately none of these show up in the final image.
Continue reading Index matching, cont

Weekend fun

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 I haven’t been happy with it because I originally made it shorter than it needed to be and there was one corner that was hard to get past.

Continue reading Weekend fun

1/2 wave plate holder

There are times when you need an inexpensive way to rotate an optic and not too long ago I had just such a need.

I purchased a few half-wave plates off eBay some time ago and needed a way to rotate them without breaking the bank.

It was time to go to the hardware store and see what I could find.

Continue reading 1/2 wave plate holder

Want a photopolymer that works?

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.

[first posted Tuesday, March 15. 2005]
[updated 3/30 with the latest round of results & consolidated into one post] Continue reading Want a photopolymer that works?

PCGG-II hand-off hologram

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.

Continue reading PCGG-II hand-off hologram