Results 31 to 40 of about 26,366,925 (292)
Stray light entrance pupil: an efficient tool for stray light characterization
, 2020 peer reviewedStray light represents a major performance limitation for optical instruments. Analyses are done with ray-tracing software to evaluate the stray light performances of a design and, if necessary, improve it before manufacturing.
Loicq, Jerôme +4 more
core +1 more source
Objective measurement of forward-scattered light in the human eye: An electrophysiological approach.
PLoS ONE, 2019 PurposePsychophysical measurements are used to examine the perception of ocular stray light, for example, with C-Quant. These measurements are subjective due to their principles.
Benjamin Solf +3 more
doaj +1 more source
Adaption of an array spectroradiometer for total ozone column retrieval using direct solar irradiance measurements in the UV spectral range [PDF]
Atmospheric Measurement Techniques, 2018 A compact array spectroradiometer that enables precise and robust measurements of solar UV spectral direct irradiance is presented. We show that this instrument can retrieve total ozone column (TOC) accurately. The internal stray light, which is often
R. Zuber +5 more
doaj +1 more source
Aerospace, 2023 In the realm of non-cooperative space security and on-orbit service, a significant challenge is accurately determining the pose of abandoned satellites using imaging sensors.
Quan Sun +8 more
doaj +1 more source
Micro to macro scale simulation coupling for stray light analysis
Optics Express, 2021 Stray light in an optical system is unwanted parasitic light that may degrade performance. It can originate from different sources and may lead to different problems in the optical system such as fogging, ghost images for imagers, or inaccurate measurements for time of flight applications. One of the root causes is the reflectivity of the sensor itself.
Axel, Crocherie +4 more
openaire +2 more sources
Frontiers in Human Neuroscience, 2020 Steady-state visual evoked potentials (ssVEPs) are commonly used for functional objective diagnostics. In general, the main response at the stimulation frequency is used.
Benjamin Solf +3 more
doaj +1 more source
Optical system design of star sensor and stray light analysis
Journal of the European Optical Society-Rapid Publications, 2018 Background Star sensor is one of the precise attitude determination sensors. It is an electro-optical system that takes an image from a set of stars and by comparing it with the star catalogue determines angle deviation of the satellite and modifies its ...
Mohammad Asadnezhad +2 more
doaj +1 more source
Calibration and evaluation of CCD spectroradiometers for ground-based and airborne measurements of spectral actinic flux densities [PDF]
Atmospheric Measurement Techniques, 2017 The properties and performance of charge-coupled device (CCD) array spectroradiometers for the measurement of atmospheric spectral actinic flux densities (280–650 nm) and photolysis frequencies were investigated.
B. Bohn, I. Lohse, I. Lohse
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng +3 more
wiley +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Instruction Tenapanor potentially affects fluid volume and blood pressure. This study explored its effects on these parameters in patients undergoing peritoneal dialysis (PD). Methods We conducted a single‐arm, prospective observational study that enrolled 10 patients on PD with hyperphosphatemia who were newly initiated on tenapanor.
Shun Yoshida +11 more
wiley +1 more source