Physics – Optics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rnaoj...7....9y&link_type=abstract
Report of the National Astronomical Observatory of Japan (ISSN 0915-6321), Vol. 7, No. 1 - 2, p. 9 - 14 (2004)
Physics
Optics
Space Missions, Astrometry, Optical Design
Scientific paper
We have investigated the optical design for Japan astrometry satellite mission (JASMINE), JASMINE will measure parallaxes, positions and proper motions of stars in our Galaxy with the precision of 10 microarcsec in order to study the fundamental structure and evolution of the disk and the bulge components. In order to accomplish such measurments with high accuracy, the optics with a long focal length and a wide focal plane is requested. In 1977, Korsch proposed a three mirror system with a long focal length and a wide focal plane. Then Korsch system is one of the convincing models. However, the center of the field is totally vignetted because of the fold mirror. Therefore we consider the improved Korsch system in which the center of the field is not vignetted. Finally we obtain the diffraction limitted optical design with small distortion.
Gouda Naoteru
Kobayashi Yukiyasu
Takato Naruhisa
Yano Taihei
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