Spatially modulated light source obliquely incident on a semi-infinite scattering medium

2012 ◽  
Vol 37 (19) ◽  
pp. 4158 ◽  
Author(s):  
André Liemert ◽  
Alwin Kienle
Keyword(s):  
Light Source ◽  
Scattering Medium ◽  
Obliquely Incident ◽  
Modulated Light ◽  
Spatially Modulated Light

Phantom array and stroboscopic effects of a time-modulated moving light source during saccadic eye movement

2017 ◽  
Vol 50 (5) ◽  
pp. 772-786 ◽  
Author(s):  
C-S Lee ◽  
J-H Lee ◽  
H Pak ◽  
SW Park ◽  
D-W Song
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Light Source ◽  
Light Emitting Diode ◽  
Saccadic Eye Movements ◽  
Movement Speed ◽  
Light Sources ◽  
Saccadic Eye Movement ◽  
Modulated Light ◽  
Source Motion

This paper evaluates the detectability of the phantom array and stroboscopic effects during light source motion, eye movement and their combination, using time modulated light-emitting diode light sources. It is well known that the phantom array can be observed when time-modulated light sources are observed during saccadic eye movements. We investigated whether light source motion can cause similar effects when the subject has fixed eyes. In addition, we estimated the detectability threshold frequency for the combination of stroboscopic effect and the phantom array, which is named the stroboscopic-phantom array effect, during two eye movements in opposite directions under one directional rotating light source with variable speed. Our results indicate that one of the most important factors for the stroboscopic-phantom array effect is eye movement speed relative to the speed of the light source. Therefore, time-modulated moving light sources induce a stroboscopic effect in subjects with fixed eyes that is similar to the stroboscopic-phantom array effect observed during saccadic eye movement. Our findings are likely to be useful for predicting the stroboscopic effect and the stroboscopic-phantom array effect during the fast motion of time-modulated LED light sources, like multi-functional rear lamps, in automotive lighting applications.

Detection of inhomogeneities in diffusive media using spatially modulated light

2009 ◽  
Vol 34 (14) ◽  
pp. 2156 ◽  
Author(s):  
Andrea Bassi ◽  
Cosimo D'Andrea ◽  
Gianluca Valentini ◽  
Rinaldo Cubeddu ◽  
Simon Arridge
Keyword(s):  
Modulated Light ◽  
Spatially Modulated Light

scholarly journals Fast 3D optical reconstruction in turbid media using spatially modulated light

2010 ◽  
Vol 1 (2) ◽  
pp. 471 ◽  
Author(s):  
Cosimo D’Andrea ◽  
Nicolas Ducros ◽  
Andrea Bassi ◽  
Simon Arridge ◽  
Gianluca Valentini
Keyword(s):  
Turbid Media ◽  
Optical Reconstruction ◽  
Modulated Light ◽  
Spatially Modulated Light

Effects of the photogenerated excess carriers on the thermal and elastic properties of n-type silicon excited with a modulated light source: Theoretical analysis

2019 ◽  
Vol 126 (18) ◽  
pp. 185102 ◽  
Author(s):  
D. K. Markushev ◽  
D. D. Markushev ◽  
S. Aleksić ◽  
D. S. Pantić ◽  
S. Galović ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Light Source ◽  
Elastic Properties ◽  
Type Silicon ◽  
Modulated Light

Research of Weak Signal Processing Circuit Based on Non-Dispersive Infrared Automobile Exhaust Sensor

2013 ◽  
Vol 336-338 ◽  
pp. 163-167
Author(s):  
Jun Xie ◽  
Yi Long Zhang ◽  
Yue Feng Yuan
Keyword(s):  
Light Source ◽  
Infrared Detection ◽  
Weak Signal ◽  
Gas Concentration ◽  
Automobile Exhaust ◽  
Detection Technology ◽  
Thermopile Sensor ◽  
Gas Chamber ◽  
Modulated Light ◽  
Processing Circuit

Based on the analysis of infrared detection technology and Lambert-Beer law a new kind of quad-channel non-dispersive infrared (NDIR) gas concentration analyzer is designed by applying the modulated IR light source and a quad thermopile sensor into automobile exhaust gases concentration detection. The emphasis is paid on the analysis of modulated light source, gas chamber, sensor and the acquisition and processing circuit of the signal. The result of simulation and analysis of the designed circuit proved the feasibility of the design.

Pulse-modulated light source for psychometric and vision experiments

1987 ◽  
Vol 19 (3) ◽  
pp. 203-207 ◽  
Author(s):  
C.N. Scholfield ◽  
M. Murdock
Keyword(s):  
Light Source ◽  
Modulated Light

scholarly journals Spatial shift of spatially modulated light projected on turbid media

2008 ◽  
Vol 25 (11) ◽  
pp. 2833 ◽  
Author(s):  
Andrea Bassi ◽  
David J. Cuccia ◽  
Anthony J. Durkin ◽  
Bruce J. Tromberg
Keyword(s):  
Turbid Media ◽  
Spatial Shift ◽  
Modulated Light ◽  
Spatially Modulated Light
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