Purple transmitted light in DCG

[Joe Farina]

I've noticed that in some of my DCG holograms which turn out bright, there is a purplish tint which shows up in transmitted light. The below Denisyuk was done this morning. The second photo in the next post shows the same hologram in transmitted light coming through the window, with the purplish tint. I was wondering if there is an explanation for this. Thanks.

[Joe Farina]

Second photo showing purplish tint

[Din]

Your hologram seems to reflect mostly in the green. Therefore, what's left in the transmission, ie what's taken away from the reflected light, is red and blue, which makes purple. The brighter the hologram, the more green is reflected, and the more purple is the transmitted.

[Joe Farina]

Thank you Din, I appreciate it.

Your hologram seems to reflect mostly in the green.