Figure 2
Timing sequence of the readout of the 3-CCD camera (C7770). The numbers indicate the frame sequence. For each CCD the upper part shows the status of the pixel that receives light, while the lower part shows that of the register for readout. The registers are masked from the light. At the small arrows, the electron charges in the pixel are erased and the exposure begins. At the large arrows, the charges are transferred to the register and then read out. The readout takes 10.2 ms. Thus, by delaying actions in the three CCDs by a multiple of 3.4 ms, it is possible to make a continuous time-resolved recording of images. |