Reflective correctors for the Hubble Space Telescope axial instruments

Details Reflective correctors for the Hubble Space Telescope axial instruments Reflective correctors for the Hubble Space Telescope axial instruments

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apopt..32.1768b&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 32, no. 10, p. 1768-1774.

Physics

Optics

5

Asphericity, Hubble Space Telescope, Reflectance, Satellite-Borne Instruments, Aberration, Angular Resolution, Astigmatism, Mirrors, Ray Tracing

Scientific paper

Reflective correctors to compensate the spherical aberration in the Hubble Space Telescope are placed in front of three of the axial scientific instruments (a camera and two spectrographs) during the first scheduled refurbishment mission. The five correctors required are deployed from a new module that replaces the fourth axial instrument. Each corrector consists of a field mirror and an aspherical, aberration-correcting reimaging mirror. In the camera the angular resolution capability is restored, be it in reduced fields, and in the spectrographs the potential for observations in crowded areas is regained along with effective light collection at the slits.

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