Articles with "mid spatial" as a keyword



MAVIS: the impact of the mid-spatial frequency figure errors of optics on the astrometric error

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Published in 2025 at "Journal of Astronomical Telescopes, Instruments, and Systems"

DOI: 10.1117/1.jatis.11.1.018002

Abstract: . Mid-spatial frequency figure errors (MSFEs) occurring on optical surfaces are an unavoidable issue that may influence the performance of an optical system. In this paper, we present the results of an analysis dedicated to… read more here.

Keywords: frequency figure; optics; figure errors; astrometric error ... See more keywords

Understanding and reducing mid-spatial frequency ripples during hemispherical sub-aperture tool glass polishing.

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Published in 2022 at "Applied optics"

DOI: 10.1364/ao.455233

Abstract: During sub-aperture tool polishing of glass optics, mid-spatial surface ripples are generated because of material removal non-uniformities during tool linear translation (resulting in feed ripples) and tool pathway step overlaps (resulting in pitch ripples). A… read more here.

Keywords: tool; mid spatial; aperture tool; glass ... See more keywords

Suppression of mid-spatial-frequency waviness by a universal random tree-shaped path in robotic bonnet polishing.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.468103

Abstract: Mid-spatial-frequency (MSF) errors seriously damages the imaging performance of optical components. Path pattern is an important factor that affects the generation of MSF waviness in polishing. This paper proposes a versatile pseudo random tree-shaped path… read more here.

Keywords: tree shaped; waviness; mid spatial; path ... See more keywords

Restraint of the mid-spatial frequency error on optical surfaces by multi-jet polishing.

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Published in 2022 at "Optics express"

DOI: 10.1364/oe.473235

Abstract: Nowadays, the mid-spatial frequency (MSF) error existing in the optical surface after polishing is still a great challenge for the ultra-precision manufacturing of optical components. MSF error severely deteriorates the performances of optical components such… read more here.

Keywords: jet polishing; mid spatial; multi jet; msf error ... See more keywords

Pupil-difference moments for estimating relative modulation from general mid-spatial frequency surface errors.

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Published in 2023 at "Optics letters"

DOI: 10.1364/ol.491408

Abstract: Standard surface specifications for mid-spatial frequency (MSF) errors do not capture complex surface topography and often lose critical information by making simplifying assumptions about surface distribution and statistics. As a result, it is challenging to… read more here.

Keywords: surface errors; relative modulation; pupil difference; mid spatial ... See more keywords

Effects of sinusoidal mid-spatial frequency surface errors on optical transfer function

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Published in 2024 at "Chinese Optics"

DOI: 10.37188/co.2023-0229

Abstract: : Mid-spatial frequency surface errors (MSFSE) can cause small angle scattering in optical systems. read more here.

Keywords: surface errors; mid spatial; spatial frequency; frequency surface ... See more keywords