Doesn't this seem like it has been done?
3/20/2006 12:19:00 PM
Fujifilm Develops New Image Sensor Technology for Digicams
Fuji Photo Film Co. Ltd., Tokyo, Japan, has developed a new basic
technology for a new type of image sensor that ensures 3x higher
sensitivity and richer color depth than conventional image sensors,
reports PhotoImaging Enterprises Association International's PEN News
Weekly.
In today's digital cameras, images are captured and converted into
digital signals by triplets of CCDs placed side by side -- one each
for red, green, and blue. It is difficult for ordinary photographers
to realize that a digital image captured with a digital camera has
less depth than pictures taken with film in which the photosensitive
pigments for the three primary colors of red, green, and blue are
layered above one another, but pro photographers can recognize this.
Adopting the same concept of layering, the new image sensor developed
by Fujifilm uses organic pigments reacting to red, green and blue
light. The pigments are sandwiched between transparent electrodes and
stacked above one another. When light enters each pigment layer,
electric current flows between the electrodes, and the electric
current is then converted into digital signals.
Fujifilm has made a prototype image sensor containing a green-
reacting pigment. It yields monochrome pictures having the same depth
as photo film, and is now making prototype elements for red and blue
light as well. The company has filed a patent application on the
basic technology and hopes to commercialize new image sensors in
three to four years, says PEN News Weekly.
Winsor
Long Beach, California, USA
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