Treffer: The filtering characteristics of simple grating optical low-pass filters

Title:
The filtering characteristics of simple grating optical low-pass filters
Authors:
LEE, J.-C, LIM, S, KIM, S.-H, OH, Y.-H, GO, C.-S
Source:
Applied physics. B, Lasers and optics (Print). 74(6):563-567
Publisher Information:
Berlin: Springer, 2002.
Publication Year:
2002
Physical Description:
print, 14 ref
Original Material:
INIST-CNRS
Subject Terms:
Optics, Optique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Optique, Optics, Formation des images et traitement optique, Imaging and optical processing, Transformation de fourier appliquée à l'optique, Fourier optics, Fonctions de transfert optique et de transfert de modulation, Modulation and optical transfer functions, Eléments, dispositifs, et systèmes optiques, Optical elements, devices, and systems, Réseaux, Gratings, Elément optique, Optical elements, Etude expérimentale, Experimental study, Etude théorique, Theoretical study, Filtre biréfringent, Birefringent filter, Filtro birrefringente, Filtre optique, Optical filters, Filtre passe bas, Low-pass filters, Fonction transfert modulation, Modulation transfer function, Función transferencia modulación, Frange moiré, Moire fringes, Lentille optique, Optical lens, Lente óptico, Réseau diffraction, Diffraction gratings, Système optique, Optical systems, 4230K, 4230L, 4279D
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Division of Physics and Semiconductor, Wonkwang University, 344-2 Shinyongdong Iksan City, Chonbuk, Korea, Republic of
ISSN:
0946-2171
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=15362281
Rights:
Copyright 2004 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: optics
Accession Number:
edscal.15362281
Database:
PASCAL Archive

Weitere Informationen

We studied the characteristics of a two-dimensional grating optical low-pass filter (GOLF) theoretically and experimentally. The modulation transfer function (MTF) of an optical system that consists of a lens and a GOLF is theoretically derived by taking all orders of diffracted beams into consideration. The MTFs of a two-phase chess-board-type GOLF and a three-phase GOLF were calculated for various phase differences and compared with that of a birefringent low-pass filter (BLF). The three-phase GOLF with nine center beams of equal strength removes most moiré fringes, but the resolution degradation is severe compared to the BLF. The two-phase GOLF with a phase difference of 180°, which is similar to the BLF in term of beam distribution, has a medium characteristic somewhere between those of the three-phase GOLF and the BLF. Samples of two GOLFs are made and experimented on by attaching them to a digital camera. The experimental result coincides with the theoretical development.