|Table of Contents|

Decision of Fibre Optic Image Devices Limiting Resolution in Measurement(PDF)


Research Field:
Publishing date:


Decision of Fibre Optic Image Devices Limiting Resolution in Measurement
Chen Wenjian Chi Zeying You Mingjun
School of Electronic Engineering and Optoelectronic Technology,NUST, Nanjing 210094
fibre optic element s resolving pow er sampling theory Moir?f ring e
T he mechanism of image t ransmission in fibre opt ic image devices is analysed by sampling theo ry in this paper . T he relationship is obtained betw een the line pairs of Moir?fr inges produced in the resolution measurement of fibre o pt ic imag e devices and the line pair s of the original resolut ion pat tern. When the input line pairs of resolut ion pattern is hig her than one half of sampling f requency of fibre o pt ic imag e dev ices, Moir? fr ing es arise, the sum o f the tw o kinds o f the line pairs is the sampling f requency o f fibre optic image devices. T his paper also gives the w ay to determine limit ing resolut ion. The clo sest line pairs g roup of the image of the resolut ion pat tern is decided to be the resolut ion limit . In the end, the theo ret ical result is proved by ex periment .


1 Yunlu Zo u. A new definition for reso lutio n o f imag ing fibr e bundles at static scanning . Optik,1993, 94( 1) : 43~47
2 Duane M W. Sam pling in imag ing system s. J Opt Soc Am, 1975, 65( 6) : 700~706
3 张保民. 镶嵌面阵传像特性的基本理论模型. 光学学报, 1985, 5( 9) : 812~817
4 千吉良·定雄. 石英系?Á } ?μ ??±N 画像传送特性. 光学技术“ Ó ??¨, 1986, 24( 10) : 753~763


Last Update: 2013-04-11