Stray Light Measurement For Imaging Systems

1988 ◽  
Vol 27 (1) ◽  
Author(s):  
Joseph M. Yaeli
Keyword(s):  
Stray Light ◽  
Imaging Systems ◽  
Light Measurement

Stray light measurement for point source transmittance of space optical systems

2016 ◽  
Author(s):  
Qinfang Chen ◽  
Zhen Ma ◽  
Xinyao Li ◽  
Zhihai Pang ◽  
Liang Xu ◽  
...  
Keyword(s):  
Point Source ◽  
Stray Light ◽  
Optical Systems ◽  
Light Measurement ◽  
Space Optical Systems

Stray Light Measurement of Space-borne High Resolution Imaging Spectrometer

2010 ◽  
Vol 39 (7) ◽  
pp. 1319-1323
Author(s):  
张军强 ZHANG Jun-qiang ◽  
吴清文 WU Qing-wen ◽  
颜昌翔 YAN Chang-xiang
Keyword(s):  
High Resolution ◽  
Stray Light ◽  
High Resolution Imaging ◽  
Imaging Spectrometer ◽  
Light Measurement ◽  
Resolution Imaging

scholarly journals Comparative Investigation in Stray Light Measurement in the Human Eye

2012 ◽  
Vol 57 (SI-1 Track-P) ◽  
Author(s):  
S. Schramm ◽  
B.-U. Seifert ◽  
J. Haueisen ◽  
P. Schikowski ◽  
J. Prehl ◽  
...  
Keyword(s):  
Comparative Investigation ◽  
Stray Light ◽  
Human Eye ◽  
Light Measurement

Reliability of the compensation comparison stray-light measurement method

2006 ◽  
Vol 11 (3) ◽  
pp. 034027 ◽  
Author(s):  
Joris E. Coppens ◽  
Luuk Franssen ◽  
L. J. van Rijn ◽  
Thomas J. T. P. van den Berg
Keyword(s):  
Measurement Method ◽  
Stray Light ◽  
Light Measurement

scholarly journals Stray Light Correction of the Marine Optical System

2009 ◽  
Vol 26 (1) ◽  
pp. 57-73 ◽  
Author(s):  
Michael E. Feinholz ◽  
Stephanie J. Flora ◽  
Mark A. Yarbrough ◽  
Keith R. Lykke ◽  
Steven W. Brown ◽  
...  
Keyword(s):  
Optical System ◽  
Scattered Light ◽  
Ocean Color ◽  
Stray Light ◽  
Imaging Systems ◽  
Vicarious Calibration ◽  
Color Sensors ◽  
Satellite Sensors ◽  
Measured Response ◽  
Satellite Ocean Color

Abstract The Marine Optical System is a spectrograph-based sensor used on the Marine Optical Buoy for the vicarious calibration of ocean color satellite sensors. It is also deployed from ships in instruments used to develop bio-optical algorithms that relate the optical properties of the ocean to its biological content. In this work, an algorithm is applied to correct the response of the Marine Optical System for scattered, or improperly imaged, light in the system. The algorithm, based on the measured response of the system to a series of monochromatic excitation sources, reduces the effects of scattered light on the measured source by one to two orders of magnitude. Implications for the vicarious calibration of satellite ocean color sensors and the development of bio-optical algorithms are described. The algorithm is a one-dimensional point spread correction algorithm, generally applicable to nonimaging sensors, but can in principle be extended to higher dimensions for imaging systems.

scholarly journals Simulation of External Stray Light for FY-3C VIRR Combined with Satellite Orbit Attitude Model

2021 ◽  
Vol 13 (24) ◽  
pp. 5037
Author(s):  
Junyuan Zhao ◽  
Yuqing He ◽  
Xiuqing Hu ◽  
Weiqi Jin ◽  
Lijun Zhang ◽  
...  
Keyword(s):  
Satellite Orbit ◽  
Optical Scattering ◽  
Stray Light ◽  
Imaging Systems ◽  
Space Environment ◽  
Analysis Method ◽  
Light Generation ◽  
The Given ◽  
Attitude Model ◽  
Infrared Radiometer

Optical imaging systems mounted on a Sun-synchronous satellite are probably disturbed by stray light when working in the space environment. Existing research has shown that the Visible Infrared Radiometer (VIRR) onboard the FY-3C satellite is affected by external solar stray light radiation when imaging the ground. In this paper, based on analyzing the solar stray light generation mechanism, we propose a simulation and analysis method combined with the given satellite orbit attitude model to investigate the influence of external solar stray light on VIRR’s imaging quality. We use the FY-3C orbit parameters to obtain the variation pattern of the angles between the solar vector and the payload. Based on the VIRR mechanical structure and optical scattering model, light tracing is performed to investigate the spatial distribution of irradiation on the primary mirror. The results of the occurrence time and intensity of stray light obtained by the simulation are consistent with the actual data when imaging the ground, which verifies that the proposed method is a correct and effective way to investigate the regularity of the external stray light of on-orbit payload.

Study on a wideband, variable aperture, high resolution scatterometer for planar diffraction grating stray light measurement

2017 ◽  
Vol 56 (2) ◽  
pp. 247 ◽  
Author(s):  
Jin Yang ◽  
Rui Zhang ◽  
Lu Yin ◽  
Ci Sun ◽  
Tianjiao Li
Keyword(s):  
High Resolution ◽  
Diffraction Grating ◽  
Stray Light ◽  
Light Measurement ◽  
Variable Aperture
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