Normal Aging Changes of the Scattering Light Intensity in Human Lens Measuring with Scheimpflug Photography

Author(s):  
Kyung Hwan Shyn ◽  
Do Hyung Lee ◽  
Nae Sun Hong ◽  
Se Hyun Ro
2015 ◽  
Vol 42 (1) ◽  
pp. 0113003 ◽  
Author(s):  
寇添 Kou Tian ◽  
王海晏 Wang Haiyan ◽  
王芳 Wang Fang ◽  
王领 Wang Ling

2014 ◽  
Vol 1014 ◽  
pp. 291-294
Author(s):  
Yu Han Gong ◽  
Bao Hua Chen ◽  
Yan Jun Zhao ◽  
Shou Guang Cheng

The SO2 concentration can be figured out through measuring the light intensity attenuation. But the scattering and absorption of the multidispersion soot particles can attenuate the light intensity, so the visible measurement light intensity attenuation is larger and the concentration is increased. The interference on the SO2 concentration caused by the multidispersion soot particles is discussed in this paper. The dissipativity, concentration, average size, size distribution parameters and the scattering light angle range of the multidispersion soot particles can interference the SO2 concentration.


1994 ◽  
Vol 20 (1) ◽  
pp. 70-73 ◽  
Author(s):  
Marc E. Bosem ◽  
Pamela A. Sample ◽  
Genaro A. Martinez ◽  
Moshe Lusky ◽  
Robert N. Weinreb

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Nataliia Kuzkova ◽  
Andrey Yakunov

Hydrogen bonded (H-bonded) liquids can be considered as mediums that have nanosized heterogeneities. Previously, it was shown that the light scattering by acoustic phonons is accompanied by fluctuations of intensity of light with power spectral density   () that reflects the phonon energy fluctuations. In this work fluctuations of light scattering in H-bonded liquids have been investigated. We consider two mechanisms of -process forming: fluctuations of phonon energy and fluctuations caused by dynamical inhomogeneities, predicted by percolation model. The variability can be explained by different contributions of both scattering mechanisms, which form an overall picture of low-frequency fluctuations of scattering light intensity in complex liquids.


2010 ◽  
Vol 18 (15) ◽  
pp. 15664 ◽  
Author(s):  
Xiaoji Zhou ◽  
Xu Xu ◽  
Lan Yin ◽  
W. M. Liu ◽  
Xuzong Chen

2014 ◽  
Vol 540 ◽  
pp. 277-280
Author(s):  
Yan Jun Zhao ◽  
Cheng Bin Gao ◽  
Bin Qu

One of the pollutant emission parameters is soot emission concentration. The light intensity scattering method is commonly used in monitoring the soot emission concentration. The distance between the sensor and the soot is different; the sensor acceptance scattering light angle range of the different position multidispersion soot is different and the ratio of the soot scattering light intensity and the total light intensity is different. So it can decreases soot emission concentration accuracy. To improve soot concentration accuracy, soot concentration interference caused by the multidispersion soot different position is studied in this paper. Numerical simulation results show that the different parameters multidispersion soot position can increase soot concentration error. Solution method on the multidispersion soot different position is brought out. The interference measurement system caused by the different multidispersion soot position is designed and the experimental results show that the measurement system can on-time measure the soot position interference and decrease the soot concentration measurement error.


Sign in / Sign up

Export Citation Format

Share Document