Broadband spectrum large aperture star sensor optical system

The invention relates to a star sensor optical system with a fixed star as a reference system for navigation and location, in particular to a broadband spectrum large aperture star sensor optical system. The optical system is in a telephotograph type and comprises six lenses. The axes of the lenses...

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Bibliographic Details
Main Authors QIAN YIXIAN, SHAO JIE, HONG XUETING
Format Patent
LanguageChinese
English
Published 12.06.2013
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:The invention relates to a star sensor optical system with a fixed star as a reference system for navigation and location, in particular to a broadband spectrum large aperture star sensor optical system. The optical system is in a telephotograph type and comprises six lenses. The axes of the lenses are sequentially arranged on the same straight line. An aperture slot is formed in a first positive lens 1. Chromatic aberration revision is achieved through the fact that positive and negative lenses with large chromatic dispersion aberration are selected to glued and combined in an appropriate curvature mode. Meanwhile, special optical materials are adopted. A CaF2 crystal with low refractive index and low chromatic dispersion materials is selected to achieve secondary spectrum revision and apochromatism. The broadband spectrum large aperture star sensor optical system has good image quality, is capable of laying a solid foundation for the fact that a star sensor can achieve detection of fixed stars like high lim
Bibliography:Application Number: CN20121358933