@Chip_Unicorn That being said it is possible in theory and I did see some practical applications, like clip-on lenses for #Xbox360#Kinect sensor bars so people can play closer to the sensor and in a tighter playspace than it was designed for.
OFC the opposite is also possible tho optically more challenging - not to mention that artificially increasing the playspace needed for the Kinect doesn't have any advantages except requiring more movement and poorer movement detection...