Thermal refocusing method for spaceborne high-resolution optical imagers

O Selımoglu, M Ekinci, O Karcı - Applied optics, 2016 - opg.optica.org
We describe the design of a thermal refocusing method for spaceborne high-resolution
imagers where Korsch optical design is usually implemented. The secondary mirror is made …

Research on thermal refocusing system of high-resolution space camera

W Li, Q Lv, J Wang, N Zhao, Z Tan… - Current Optics and …, 2022 - opg.optica.org
A high-resolution camera is a precise optical system. Its vibrations during transportation and
launch, together with changes in temperature and gravity field in orbit, lead to different …

Small form factor 4-mirror based imaging systems

Y Choi - US Patent 11,320,637, 2022 - Google Patents
An all-reflective optical system is described including a concave primary mirror having a
central aperture and a radius, the primary mirror having one of a parabolic, non-parabolic …

Adaptive thermal refocusing system for a high-resolution space camera

W Li, Q Lv, N Zhao, J Wang, Y Liu, T Zheng - Applied Optics, 2022 - opg.optica.org
To solve the problem of camera imaging quality degradation caused by defocusing during
on-orbit operation, we propose an adaptive thermal refocusing system for high-resolution …

Small form factor, multispectral 4-mirror based imaging systems

Y Choi - US Patent 11,579,430, 2023 - Google Patents
An all-reflective or reflective and cata-dioptric optical system includes a concave primary
mirror having a central aperture and a radius, the primary mirror having one of a parabolic …

Periodic aperture imaging

KB Alici, H Buyuk, AS Yilmaz, C Ozdemir… - Optical …, 2017 - spiedigitallibrary.org
We studied periodic aperture imaging with various subaperture configurations in terms of
their point spread functions, optical transfer functions, and imaging quality. A circular-shaped …

Finite element model assisted shimming of INGENIO/SEOSAT primary mirrors

G Taubmann, JM Arroyo, C Miravet… - … on Space Optics …, 2017 - spiedigitallibrary.org
Ingenio/SEOSAT is a multi-spectral high-resolution optical satellite for Earth remote sensing,
designed to provide imagery to different Spanish civil, institutional and governmental users …

Correlation of INGENIO/SEOSAT radiometric model with the results of the radiometric campaigns

C Miravet, D Zorita, C Santos… - … on Space Optics …, 2017 - spiedigitallibrary.org
Correlation of Ingenio/Seosat radiometric model with the results of the radiometric campaigns
SPIE.org SPIE digital library SPIE career center optics.org Sign In View Cart Help SPIE digital …

Dioptric telescope for high resolution imaging in visible and infrared bands

Y Choi - US Patent 11,668,915, 2023 - Google Patents
(57) ABSTRACT A cata-dioptric optical system for high resolution imaging in visible and
infrared bands. The system includes a concave primary mirror, a convex secondary mirror, at …

Light-weighting, polishing, bonding and testing for the SEOSAT/Ingenio Telescope mirrors

E Harel, E Ruch, H Leplan, JM Merceron… - Optical Fabrication and …, 2012 - opg.optica.org
Light-weighting, Polishing, Bonding and Testing for the SEOSAT/Ingenio Telescope Mirrors
Page 1 OW3D.5.pdf Imaging and Applied Optics Technical Digest © 2012 OSA Light-weighting …