Optical Device with Fresnel Structure

The invention relates to an optical device compris- 303 300 ing a Fresnel structure (101). The Fresnel structure is designed such that at least one phase jump is introduced in a radiation beam that 302 passes through said Fresnel structure. The optical device further comprises a stepped structure (1...

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Bibliographische Detailangaben
Hauptverfasser:	HENDRIKS BERNARDUS H.W, VERSTEGEN EMILE J.K
Format:	Patent
Sprache:	eng
Schlagworte:	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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The invention relates to an optical device compris- 303 300 ing a Fresnel structure (101). The Fresnel structure is designed such that at least one phase jump is introduced in a radiation beam that 302 passes through said Fresnel structure. The optical device further comprises a stepped structure (102) for compensating for said phase jump.