A dual-emission organic electroluminescent device. Because the track pitch and linear speed in the PCA region, PMA region and lead-in region are standard, the lead-in start radius, program start radius, and time from the lead-in start to the program region can be kept within the standard. To this end the first temperature sensor and the second temperature sensor are part of detector means detecting a closing condition of the valve. Additionally, the apparatus includes a pre-filter module configured to modify the desired air intake flow rate and the desired EGR gas flow rate based at least partially on predetermined transient response characteristics of the air handling system. The first IIR filter generates corresponding number mean value according to the current clock cycle numbers sequentially received by the first IIR filter. Raster scanning the light may include raster scanning a pattern into the field of view.