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Design of Optical Window Aberration Correction for Conformal Photoelectric Anti-Collision System [PDF]

open access: greenHangkong bingqi, 2022
In order to meet the requirements of the new generation combat helicopter to maintain the precision strike capability under the high speed flight, the photoelectric detection system and optical window are designed with conformal layout.
Han Xiulai, Nie Liang, Ren Mengru
doaj   +2 more sources

Optical Aberration Calibration and Correction of Photographic System Based on Wavefront Coding [PDF]

open access: yesSensors, 2021
The image deconvolution technique can recover potential sharp images from blurred images affected by aberrations. Obtaining the point spread function (PSF) of the imaging system accurately is a prerequisite for robust deconvolution.
Chuanwei Yao, Yibing Shen
doaj   +2 more sources

Compact Optical Visual Magnification System with a Wide Field of View [PDF]

open access: yesSensors
A new concept for designing a visual magnification system is introduced. In this concept, apart from the conventional objective and the eyepiece group lenses in the system, an additional Power-Corrector (PC) group of lenses is introduced in the optical ...
Uri Milman, Jacob Kaufmann, Yoel Arieli
doaj   +2 more sources

Analysis of polarization characteristics of freeform surface optical system [PDF]

open access: yesITM Web of Conferences, 2022
Freeform surfaces are widely used in off-axis optical systems with large aperture, large field of view, and long focal length. The polarization effect caused by the non-rotationally symmetrical shape has an impact on the system’s polarization imaging ...
Zhang Yilan, Shi Haodong, Jiang Huilin
doaj   +1 more source

Study of the Off-Axis Fresnel Zone Plate of a Microscopic Tomographic Aberration

open access: yesSensors, 2022
A tomographic microscopy system can achieve instantaneous three-dimensional imaging, and this type of microscopy system has been widely used in the study of biological samples; however, existing chromatographic microscopes based on off-axis Fresnel zone ...
Lin Yang   +11 more
doaj   +1 more source

Overlapped Fourier coding for optical aberration removal. [PDF]

open access: goldOpt Express, 2014
Horstmeyer R   +4 more
europepmc   +2 more sources

Influence of Aberrations on Modal Decomposition for LMA Fiber Laser Systems

open access: yesFrontiers in Physics, 2022
Understanding the mode components is of great importance to manipulate the optical modes and to improve the optical system performance. However, various forms of aberrations, stemming from misalignment and imperfect optical components and system design ...
Junyu Chai   +27 more
doaj   +1 more source

Study of the Effect of the Geometry of the Inner Pole Arm of a Bipolar Lens

open access: yesAl-Mustansiriyah Journal of Science, 2022
Several innovative designs were designed for magnetic lenses, a bipolar lens with innovative and different geometric shapes, where the outer Inner pole side of the iron shroud, which is symbolized by the symbol (L), was changed. 2,4,6 A/mm2) and after it
Rafa Y. J. AL-Salih   +2 more
doaj   +1 more source

Active Alignment of Large-Aperture Space Telescopes for Optimal Ellipticity Performance

open access: yesSensors, 2023
Ellipticity performance of space telescopes is important for exploration of dark matter. However, traditional on-orbit active optical alignment of space telescopes often takes “minimum wavefront error across the field of view” as the correction goal, and
Xiaoquan Bai   +6 more
doaj   +1 more source

Objective optical quality and visual outcomes after the PresbyMAX monocular ablation profile [PDF]

open access: yesInternational Journal of Ophthalmology, 2020
AIM: To assess objective visual quality after presbyopia correction using the PresbyMAX monocular mode. METHODS: This prospective, nonrandomized study included 28 eyes from 18 patients (mean age 50.4±5.6y) who underwent presbyopia correction with the ...
Dan Fu, Jing Zhao, Xing-Tao Zhou
doaj   +1 more source

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