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An Annulus-Sector Segmented Primary Mirror
- Source :
- IEEE Photonics Journal, Vol 9, Iss 5, Pp 1-9 (2017)
- Publication Year :
- 2017
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2017.
-
Abstract
- Ultrahigh resolution optical imaging with large aperture is increasingly desired in space-based remote sensing and imaging system, but it is usually limited by volume and mass constraints of launch vehicle due to size and weight of the imaging system. In this paper, an annulus-sector segment primary mirror is presented, which is in high obscuration with circularity symmetrical annulus-sector around. The different structure types of the annulus-sector segment aperture are discussed, while two important parameters, width–diameter ratio and the subaperture angle are also studied. An annulus-sector optical lens is processed to verify the image performance. Experimental results show that modulation transfer function of annulus-sector segment optical system can be up to 0.23(50 lp/mm), which approaches the optical resolution of full aperture optical system with smaller size and lighter weight.
- Subjects :
- lcsh:Applied optics. Photonics
Annulus-sector
Aperture
segmented mirror
02 engineering and technology
01 natural sciences
010309 optics
Entrance pupil
Primary mirror
width-diameter ratio
Optical imaging
Optics
Optical transfer function
0103 physical sciences
Annulus (firestop)
lcsh:QC350-467
Electrical and Electronic Engineering
sub-aperture angle
Physics
business.industry
lcsh:TA1501-1820
Image segmentation
021001 nanoscience & nanotechnology
Atomic and Molecular Physics, and Optics
Optical axis
0210 nano-technology
business
optical resolution
lcsh:Optics. Light
Subjects
Details
- ISSN :
- 19430655
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- IEEE Photonics Journal
- Accession number :
- edsair.doi.dedup.....303fbbe40c92696e393dad26a8ac4b96