DocumentCode :
2096519
Title :
A novel nondestructive determination of refractive indices and thicknesses of transparent lenses
Author :
Chan, Chia-Yen ; Huang, Po-Han ; Cheng, Yu-Cheng ; Chang, Shenq-Tsong ; Huang, Ting-Ming ; Lin, Chien-Liang
Author_Institution :
Instrum. Technol. Res. Center, Nat. Appl. Res. Labs., Hsinchu, Taiwan
fYear :
2011
fDate :
10-12 May 2011
Firstpage :
1
Lastpage :
3
Abstract :
A novel nondestructive method of measuring the refractive indices and thicknesses of transparent lenses has been developed. Experimental measurements and numerical computations have been complementarily adopted in the paper. Experimentally, five selected lens samples will be used to quantitatively measure the radii of curvature and the best focusing positions on the both surfaces of the lenses. Subsequently, the refractive indices and thicknesses of the lens samples will be obtained through a derived numerical methodology. Such a measurement method of the refractive index and thickness of a lens has not been reported in the past. The results of the measured refractive index and thickness will be identified and compared with the nominal results. The uncertainties for both the refractive index and thickness of the lens will be deduced as well.
Keywords :
lenses; numerical analysis; refractive index measurement; thickness measurement; nondestructive determination; numerical computation; refractive index measurement; thickness measurement; transparent lenses; Focusing; Lenses; Measurement uncertainty; Optical refraction; Optical variables control; Refractive index; Thickness measurement; central thickness; radius of curvature; refractive index; uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
ISSN :
1091-5281
Print_ISBN :
978-1-4244-7933-7
Type :
conf
DOI :
10.1109/IMTC.2011.5944116
Filename :
5944116
Link To Document :
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