The brightest, most colorful holograms are usually achieved when
solid color line art is used (no gradients). We prefer vector
based art because it can be easily separated for creation of the
holographic image.
If the hologram is to have multiple levels (2D/3D hologram), try
to keep the background graphics fairly bold. If the background
has very fine lines or details, they might wash out.
Holography is created mainly with red, green and blue, so please
try to keep each level to 3 or 4 colors. There are more options
for the surface of the holographic image, such as holographic
white and dual axis holographic gratings.
Remember that holography reflects the colors of the spectrum;
when viewed at different angles, a hologram will shift through
all the colors of the rainbow. Colors can be designated for different
elements. Our holographers will create the holographic image so
that when held at its optimum viewing angle, it will reflect those
designated colors. As the hologram turns, however, it will run
through the spectrum. We can not create holography that shows,
for example, only blue and red at all times.
Process holography can be created from photographs or complex art
that contains gradients or a wide range of colors. When viewed at
optimum angle, the hologram will show the colors of the original
photo or artwork. When turned, the hologram will shift through the
spectrum. In general, process holography is not as bright or rich
as solid color art. Process holography uses various dot densities
to create new colors, much like 4 color process printing. This has
a tendency to dull the colors.
If process holography is necessary for your holographic product,
there are a couple of things you can do to make the end product
better: