Optical system which utilizes polarized light

An optical system includes comprising a polarizing element in the form of a layer which comprises an isotropic material having a refractive index ni and an anisotropic material having refractive indices na,e and na,o. The refractive index ni is substantially equal to na,e or na,o. The optical system...

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Bibliographische Detailangaben
Hauptverfasser:	BOOTS, HENRI M. J, HIKMET, RIFAT A. M, FRIEDL, REINHOLD WIMBERGER
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING LABELS OR NAME-PLATES NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An optical system includes comprising a polarizing element in the form of a layer which comprises an isotropic material having a refractive index ni and an anisotropic material having refractive indices na,e and na,o. The refractive index ni is substantially equal to na,e or na,o. The optical system includes a retroflector for back-reflecting the polarization component diffused in the polarizing element.