METHOD OF PRODUCING A MICROLENS ARRAY

The invention relates to a device for diffusing light using a diffuser system, onto which a light beam is directed, said beam being diffused anisotropically by the diffuser system either by transmission or reflection. The device consists of a microlens array (1) and a diffuser (2, 3). The invention...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NIGGEMANN, MICHAEL, BLAESI, BENEDIKT, GOMBERT, ANDREAS, BOERNER, VOLKMAR
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY 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 ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a device for diffusing light using a diffuser system, onto which a light beam is directed, said beam being diffused anisotropically by the diffuser system either by transmission or reflection. The device consists of a microlens array (1) and a diffuser (2, 3). The invention also relates to a method for producing the device. The invention is characterised in that the microlens array comprises a planar arrangement of microlenses (11), each having a numeric aperture (NA) that changes in accordance with the azimuth angle and whose focal distance for all azimuth angles is infinitesimal.