Properties of moiré magnifiers

Hala Kamal; Reinhard V#lkel; Javier Alda

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Properties of moiré magnifiers

机译：Properties of moiré magnifiers

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Moiré magnification can be observed visually if an array of identical objects is viewed through an array of identical microlenses with a different period. Theoretical analysis and experimental results of the moiré image obtained by a moiré magnifier are presented. Conditions for erect and inverted moiré magnifications are derived and interpreted. Virtual erect images are observed only when the period of the lens array is larger than that of the object array, while inverted images are obtainable in both cases. For equal periods, a uniform field of view results. The relation between the relative size of the periods and the distance between the object and the lens arrays are derived. Expressions for image magnification, orientation and size are deduced. The condition to obtain a demagnified moiré pattern is deduced. Rotation of the lens array with respect to the object array results in rotation of the erect and inverted moiré patterns in similar and opposite directions, respectively. # 1998 society of Photo-Optical Instrumentation Engineers. S0091-3286(98)00611-4 Subject terms: moiré effect; microlens arrays. Paper 01117 received Nov. 3, 1997; revised manuscript received June 3, 1998; accepted for publication June 22, 1998.

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《Optical Engineering》 |1998年第12期|3007-3014|共8页
作者
Hala Kamal; Reinhard V#lkel; Javier Alda;
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Ciudad Universitaria Universidad Complutense de Madrid Facultad de Físicas Departamento de Optica/ 28040 Madrid, Spain E-mail: j.alda @ fis.ucm.es;

Université de Neuch#tel Institute of Microtechnology Rue A.-L. Breguet 2/ CH-2000 Neuch#tel Switzerland;

Ciudad Universitaria Universidad Complutense de Madrid Facultad de Físicas Departamento de Optica/ 28040 Madrid, Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
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Properties of moiré magnifiers

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