Would it possible to . . .

.. . . make a printer that uses diffractory "ink." I.e., no pigment
necessary, just a single substance (or blend of substances) that could
create visible color on the printed paper by varied spacing of small
particles, or maybe with some sort of thin film effect?

I know nothing about the possibility or lack thereof, but that came to
mind while I was photogrphing hummingbirds who get most of their color
from the spacing of melanin particles in their feathers (as do most
other birds) as opposed to colored pigments. It would seem that such a
process might have its advantages - and disadvantages too, like being
dependant possibly on lighting direction and intensity. Many very
colorful birds look black or dull gray in low light.

Just thinking and typing . . .

Eric Miller
www.dyesscreek.com

On 10-09-18 12:03 , Eric Miller wrote:
. . . make a printer that uses diffractory "ink." I.e., no pigment
necessary, just a single substance (or blend of substances) that could
create visible color on the printed paper by varied spacing of small
particles, or maybe with some sort of thin film effect?

I know nothing about the possibility or lack thereof, but that came to
mind while I was photogrphing hummingbirds who get most of their color
from the spacing of melanin particles in their feathers (as do most
other birds) as opposed to colored pigments. It would seem that such a
process might have its advantages - and disadvantages too, like being
dependant possibly on lighting direction and intensity. Many very
colorful birds look black or dull gray in low light.

Interesting, but I thing your point on lighting/direction etc. has too
much to play, perhaps more so (or less) on a 2D end product.

OTOH, I've seen some stunning photos of birds that don't suggest that
anything is missing - perhaps the opposite!

To a degree, a hologram represents part of your idea (I think).

--
gmail originated posts are filtered due to spam.

"Alan Browne" wrote in message
...

To a degree, a hologram represents part of your idea (I think).


Would that part be called a half a gram.
OTOH would full communication be called a telegram. If you want something to
chew on try a gram cracker.


--
Peter

On Sat, 18 Sep 2010 11:03:15 -0500, Eric Miller
wrote:

. . . make a printer that uses diffractory "ink." I.e., no pigment
necessary, just a single substance (or blend of substances) that could
create visible color on the printed paper by varied spacing of small
particles, or maybe with some sort of thin film effect?

I know nothing about the possibility or lack thereof, but that came to
mind while I was photogrphing hummingbirds who get most of their color
from the spacing of melanin particles in their feathers (as do most
other birds) as opposed to colored pigments. It would seem that such a
process might have its advantages - and disadvantages too, like being
dependant possibly on lighting direction and intensity. Many very
colorful birds look black or dull gray in low light.

Just thinking and typing . . .

Eric Miller
www.dyesscreek.com


you made me look
:-)

http://www.pcimag.com/Articles/Cover...00f932a8c0____