Off-axis optical system can meet the needs of focus, FOV and optical distortion, the requirement of the optical system for space-borne off-axis mapping camera can be met well. In view of the strict requirements to the linear array horizontality and consistency of confocal plane for all FOV and all spectral, a method of computer aided adjustment model is proposed for quick alignment and test of the focal plane. Compare the traditional method, this method can both improve the efficiency and achieve high accuracy of alignment and test of the focal plane. The alignment and test result to a type long focal length mapping camera indicate that uniformity of the focal plane for all CCDs less than ±0.05mm and the linear array horizontality less than ±1 ′ .The result shows that this method is feasible and efficient. So it can provide a reference to fasten alignment and test of the focal plane for other space-borne off-axis mapping camera.
For the high precision requirement of spaceborne low light remote sensing camera optical registration, optical registration of dual channel for CCD and EMCCD is achieved by the high magnification optical registration system. System integration、optical registration and accuracy of optical registration scheme for spaceborne low light remote sensing camera with short focal depth and wide field of view is proposed in this paper. It also includes analysis of parallel misalignment of CCD and accuracy of optical registration. Actual registration results show that imaging clearly, MTF and accuracy of optical registration meet requirements, it provide important guarantee to get high quality image data in orbit.
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