Thought of these varieties after seeing GregAlex post on 3-D Bas Relief Postcards
http://goscf.com/t/80280Lenticular printing is a technology in which lenticular lenses (a technology also used for 3D displays) are used to produce printed images with an illusion of depth, or the ability to change or move as they are viewed from different angles.
(More info than you want
)
https://en.wikipedia.org/wiki/Lenticular_printing"Lenticular and 3D are two separate technologies! 3D issues show depth but not movement. Lenticular shows movement but not depth."
Above is simple explanation found under this post about 3-D stamps.
http://goscf.com/t/39123All that leads to my showing post cards I have that use both types.
Early and modern.
Unfortunately, scans can't show the illusion.
Changes from clown to skeleton when tilted.
Shows 3D depth
Shows 3D depth
Changes from Arnold to T2 when tilted.
Changes from single figure to multiple when tilted.
Posted 04/21/2022 6:22 pm
