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Sounds like the problem's solved, and in one of my earlier posts I did mention the types of lenses I have used successfully in film and DMD based projection systems.

Keep up the good work!

Yep, it's a consistent place to get what we need. You might be able to find the same stuff elsewhere cheaper, but it depends on the price/time trade off. I have been dealing with them for over 30 years, got them to advertise in the late, great holosphere, the Advocate of Holographic Art, Science and...

I just read your earlier post, and it appears that you are just diffracting off the mirrors without a lens to focus the image onto a screen. Try using the lens from the projector, or does this one use one at all? Or camera lenses, or even single element positive lenses, etc.

I mean not might be!

How big are you blowing it up? Even when we used the TI DMD XGA device we never went bigger than 6 by 8 inches, 15 by 20 cm. If I put my near-sighted eyes close to the screen, or final hologram, I could see the pixels. Mainly it was used for dinky postage stamp size security stuff. It sounds almost ...

Alternately - if neither ground glass nor frosted glass is the best choice, what would be ideal? The ground glass diffuses by refraction, will preserve polarization, and its angle of view and resolution are tied in to how it's etched. You might have to try a variety of samples to find one that you ...

I am just back in town and missed the beginning of this thread, but we used at CFC/Northern Banknote a TI DMD with at first 600 by 800 pixels, and it got pixelly when blown up to about 6" by 8". For the typical security size holo it was just peachy. We wanted to go to XGA resolution, 1024 ...

Totally impressive! Who are the monster characters; could we find them in the trading card market?

For this type of work, especially if you want to do real-time inspection, the recording and replay should be the same. Switching wavelengths changes the image, size being the most obvious, in proportion to wavelengths, plus the seven deadly aberrations rear their ugly heads. If double-exposed hologr...

As a bonus, not in the program, I will be giving a presentation on Gallery 1134, aka Chicago Museum of Holography dba Fine Arts Research and Holographic Center, etc. It should be a stitch!