| 摘要 |
An integrating image motion compensator is disclosed. The compensator comprises photo-responsive charge transfer means, overlying transparent insulation means and transparent charge transfer electrode means spaced from the charge transfer means by the insulation means. Channel isolation means associated with the charge transfer means define individual charge transfer channels. The operating system further comprises means for inducing separate charge collection regions within each channel and for transferring the regions along the charge transfer means at a controllable rate. Image speed sensing means sense the image speed and synchronize the rate of charge transfer with the rate of image movement. When large area image motion compensators are needed, optical image segmentation means are provided to allow the use of many small compensators to form a composite, large, image motion compensator. In the preferred embodiment the photo-responsive charge transfer means is a semiconductor layer having a gap energy less than the energy of the photons forming the image to be converted. A plurality of parallel charge transfer channels are defined at the surface of the semiconductor by stripes of heavily doped semiconductor material which isolates the channels. The transparent control electrodes are preferably divided into four sets to form a four-phase charge transfer control system. The photons comprising the image to be converted are incident on the semiconductor through the overlying transparent insulator and electrodes. Potential wells within the charge transfer channels are stepped along the channels at the same rate at which the image is traveling along the channel. Thus, all the photons arriving from a given image point strike in the same potential well and contribute to the charge therein. At the end of the transfer channel, any charge therein is sensed in any appropriate manner, such as by a back-biased pn junction.
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