Sensor for green and red colour detection

Hello guys,

can you suggest me some sensor for green and red floor detection? I'm pretty much searching for sensor, which does not need much circuitry around it. Best case would be, that sensor gives some voltage for red and another for green

Thanks already for your comments,

-Dknot--

The following link may be of use to you;
Cadmium-Sulfide Active Color Object Sensor - Robot Room

try these
CMOS Digital Photo IC for Colour Sensing - Jul 27 2009 - Hamamatsu Photonics - Envirotech Online

you can use a normal light sensor like LDR or etc together with filter for both colors ( colored glasses), hope it may work.