one step rainbow holograms NICE!

dave battin · Post by **dave battin** » Tue Dec 11, 2007 11:34 pm

found this on U-tube while surfing. Ive always wanted to try this neat one step method.

Colin Kaminski · Post by **Colin Kaminski** » Wed Dec 12, 2007 4:12 am

OK Dave. How were these made? I seem to remember a one step method described by Saxby but it does not come to mind.

dave battin · Post by **dave battin** » Wed Dec 12, 2007 4:31 am

check this, it's a different view, i can only list it as a link address?? colin?
http://www.youtube.com/watch?v=TdSUy_JQ ... f=5&t=5507

Colin Kaminski · Post by **Colin Kaminski** » Wed Dec 12, 2007 6:08 pm

I guess half of the problem is I have no idea what I am looking at.

MichaelH · Post by **MichaelH** » Wed Dec 12, 2007 6:32 pm

They look like multiple-exposure holograms. How can you tell they were one-step?

DJ Mathson · Post by **DJ Mathson** » Wed Dec 12, 2007 7:44 pm

I guess they can have been made with the technique described in the end of this paper:
http://www.ultimate-holography.com/new/ ... 6-p215.pdf

dave battin · Post by **dave battin** » Thu Dec 13, 2007 12:58 am

DJ Mathson wrote:I guess they can have been made with the technique described in the end of this paper:
http://www.ultimate-holography.com/new/ ... 6-p215.pdf

yes DJ i think you a correct, apparentally there is a newer method where you project the slit/line by using a beaker filled with water as the LENS! Wow i got to try this!

Colin Kaminski · Post by **Colin Kaminski** » Thu Dec 13, 2007 1:07 am

dave battin wrote:
DJ Mathson wrote:I guess they can have been made with the technique described in the end of this paper:
http://www.ultimate-holography.com/new/ ... 6-p215.pdf
yes DJ i think you a correct, apparentally there is a newer method where you project the slit/line by using a beaker filled with water as the LENS! Wow i got to try this!

Vidar describes this as well.

DJ Mathson · Post by **DJ Mathson** » Thu Dec 13, 2007 3:29 am

Colin Kaminski wrote: Vidar describes this as well.

Could you please tell where Vidar describes One-step pseudo colour rainbow holography. Or do you mean his liquid filled lenses?

Colin Kaminski · Post by **Colin Kaminski** » Thu Dec 13, 2007 4:08 am

Ah, looking at the site again I guess he only shows the lens for normal single step H2s. A rainbow would not be very hard with his lenses however.

http://www.techsoft.no/holography/lenses.htm

You would need to project a real image of the object through a slit and make an "H2" of the image formed by a cylindrical lens in a transmission setup.