see http://www.foveon.net/X3_tech.html
Carver Mead, one of Foveon's founders published this idea of doing layered
seperation on the silicon a long time back.
It has a lot of theoretical advantages: greatly reduced aliasing, no
mechanical alignment like Foveon's present product, better quantum efficiency
(lower noise)(cf on chip matrix filters) less wasted sensor area for
metalization (cf on chip matrix filters).
Probably less light drop off for wide angle lenses. Consistent aliasing/moire
across all colors. (Instead of different patterns for each color)
The super pixel sampling also blurs the distinction between video and still
cameras even more. It will be interesting to see how well the on chip color
seperation works. The native silicon on it's own has best quantum efficiency
in the infrared, so the blue sensor area (volume) will probbly have worse
noise visible at low light levels.
Foveon sells developement kits so there is a small (?) home project for your
OM conversion! Usually these types of kits are pretty pricey. $10k+
Regards,
Tim Hughes
Hi100@xxxxxxx
|