A glass-silicon wafer stacked platform. Three of the channels handle image data relating to primary color planes, such as CMY. Each sub band is processed as in background audio echo cancelling by subtracting the signal with an echo estimate from a model of the acoustic signal in the respective sub band, except from that the signal is also bypassed, adjusted by a filter and subtracted from the processed signal. When the samples are separated, one of them, qualified as the master, is stimulated by a traditional method that uses infrared or white radiation or by heating, and a signal is measured that represents the partially correlated excess variation of opacity or coloration of the other sample, qualified as slave. The invention provides a unique accumulator channel to capture dripping and splashing oil and exit ports with reduced pressure that enable the oil to be drawn through the bearing space and out the assembly, providing for continuous circulation of oil through the assembly. After that, the degree of clearness of corresponding fundus image data is calculated based on each pixel value of the aperture mask data on which the low pass filtering process has been performed and the calculation result is outputted to the image memory.