"Ivar" <dild@[nozpam]webspeed.dk> wrote in message
news:mn.cb857d633375cddc.31159@nozpamwebspeed.dk...
> Findes der foto-kameraer med 3 CCD'er eller CMOS sensorer?
Der findes (bliver udviklet) noget der minder om det:
(af Fuji naturligvis
)
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.
--
Venligst,
Thomas Schreiber