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How difficult is it to get at the output coupler face? The beam is very small coming through the OC, and centered. Make a tiny little pad of paper (like 1/2 the diameter of the OC), hold it with the tiniest long skinny tweezers you can get or make, and give the OC a few wipes with acetone. Use the s...

The links Andrew posted above show projections onto large sheets of transparent material, that probably have holographic structures on or in them to provide diffusion only when hit with the projection from a specific angle. There's no stereopsis with the images.

I understand the point you're making Dinesh, but the OP's original question didn't specify that the recording of the lens must perform exactly like the original lens. For example however, consider making a "focused image" hologram of a simple lens transilluminated by laser light coming fro...

I think it's just a matter of convenience. But DCG should be excellent for transmission holograms because of its stability in light (no printout issues), and its clarity (if processed well). I'd use higher beam ratios to keep the noise low.

[ No, depending on what you mean by "transmission hologram of a lens". If you shone light onto a lens at some random angle, such that the glass of the lens reflected some light back onto the plate, thus collecting scattered light from the front surface(s) of a lens, then it would be a hol...

Nice installation Dave!

I agree with John. However, I'd forget about the tile or paver for the base of where you work. Making Denisyuk (single beam reflection) holograms can be done on any surface anywhere. All that's required is to be certain the plate and subject matter are interferometrically stable with respect to each...

Nice work! Isn't it GREAT when everything works well and you watch the image become visible as the hologram dries?!?

Don't sweat it Jeff! I'm actually surprised at your giving him an intelligent answer after his "I won't pay for plans" mantra.

I've been following this forum since the beginning, but just dragging my feet about registering. Yesterday, I saw the ignorant request for free plans in the General Section, and really wanted to light it up by jumping all over it so I registered. But then, I was told that a key would be sent by emai...