Chris , Thank you ,
What do you mean with 3 color hologram ? I did never thinked 3 color hologram. This is single color hologram and it is also possible to create a grey objects hologram.
My technology is widest used homemade hologram technology. If you search diy hologram at google , you will find tens , hundreds of similar sites saying this is possible.
The real problem , is it possible to see different reflectance of print with viewing from many angles.
I read 6 dimensional hologram from mit , not using lasers but parallel strips of light breakers. But this is not very true also , interesting point , they use many single square lens dots for to view many holograms from different angles , right to left , top to down.
They say this will be ready after 10 years from today and truly diffracts the light like there is the real objects and changing light sources there.
Question , is it possible to create a simple hologram from single light source and single hologram plate and get a diffracting metal surface of the platinum.
If the technology is not enough to simulate the real light , there is an advantage , artists can create the best possible print and we get the non changing , non need to critic with different views , lights hologram.
Umut