High-precision focusing device used for space optical remote sensing instrument
A space optical remote sensing, high-precision technology, applied in the field of space remote sensing, can solve the problems of difficult manufacturing, long-life lubrication of space cold welding, large influence on the machining accuracy of precision transmission parts, etc. compact effect
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[0028] A specific implementation of the present invention will be described in detail below with reference to the accompanying drawings:
[0029] Such as figure 1 As shown, the focusing mechanism is installed in the focusing mechanism support tube 1, and the fixed lens 11 and the focusing lens 12 are both installed in the lens support tube 13. One end of the U-shaped focusing connecting frame 9 is installed on the nut seat of the precision ball screw 5, and the other end is fixed on the moving ring of the focusing lens. In order to facilitate the optical calibration of the entire optical system, it is necessary to ensure that the optical axis of the lens assembly and the mechanical axis of the lens support cylinder 13 are as consistent as possible. For this reason, in the design and processing process, ensure that the cylindricity of the two inner circles of the lens support tube 13 and the focusing lens 12 and the fixed lens 11 are less than 0.008mm, and the coaxiality of the t...
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