Contrast of shadow moire at high-order Talbot distances

被引:12
作者
Han, C [1 ]
Han, B [1 ]
机构
[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA
关键词
shadow moire; Talbot distance; aperture effect; contrast;
D O I
10.1117/1.1849221
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The contrast of shadow moire at high-order Talbot distances is studied. An exact solution for the contrast of shadow moire fringes is developed from the diffraction phenomenon and its validity is corroborated experimentally. The result is combined with an additional effect from the finite aperture of the camera to propose a complete expression for the contrast of shadow moire fringes. The results can guide the design of shadow moire configurations with high-order Talbot distances for high-sensitivity measurements. (c) 2005 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码:1 / 6
页数:6
相关论文
共 13 条
[1]   EFFECT OF DIFFRACTION ON THE MOIRE IMAGE .2. EXPERIMENT [J].
BARZIV, E ;
SGULIM, S ;
MANOR, D .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1985, 2 (03) :380-385
[2]   EFFECT OF DIFFRACTION ON THE MOIRE IMAGE .1. THEORY [J].
BARZIV, E .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1985, 2 (03) :371-379
[3]  
CHIANG FP, 1989, MANUAL EXPT STRESS A, pCH7
[4]   FRESNEL DIFFRACTION IMAGES OF PERIODIC STRUCTURES [J].
EDGAR, RF .
OPTICA ACTA, 1969, 16 (03) :281-+
[5]  
JANSSENS JL, 1985, OPTIK, V71, P45
[6]   FRINGE OBSERVATION AND DEPTH OF FIELD IN MOIRE ANALYSIS [J].
KAFRI, O ;
KEREN, E .
APPLIED OPTICS, 1981, 20 (17) :2885-2886
[7]   DIFFRACTION EFFECTS IN MOIRE DEFLECTOMETRY [J].
KEREN, E ;
KAFRI, O .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1985, 2 (02) :111-120
[8]   THE SELF-IMAGING PHENOMENON AND ITS APPLICATIONS [J].
PATORSKI, K .
PROGRESS IN OPTICS, 1989, 27 :1-108
[9]  
POST D, 1994, HIGH SENSITIVITY MOI, pCH3
[10]  
POST D, 2000, PHOTOMECHANICS ENG, pCH7