Lunar Exploration Optics
探月光学

The basic principle, design scheme, technology measure and characteristic, the design result and imaging evaluation of the CCD stereo camera and the imaging interferometer spectrometer were presented, which are the main loads of the Chang′e-1 satellite used to detect the moon for the first time. The CCD stereo camera consists of a wide-field-view angle lens and a piece of area array CCD, and it is compact in size, light in weight, high in registration accuracy, and strong in adaptability for the space environment. The adjustment of the light exposure in the same orbit according to different latitudes can be achieved by the 16 types of combinations with 4 types of time exposure and 4 types of electronics gains. The techniques, including the large-scale reduced image transmission, the joint of 2 by 2 pixels, rectangle aperture stop, and 6 types of light exposure adjustment techniques with 2 types of light exposure and 3 types of electronics gains, were used in the imaging interferometer spectrometer. The good performance of CCD stereo camera and imaging interferometer spectrometer proves that the technique are effective.