ILLUMINATION MODULE FOR ILLUMINATING A SURFACE AND IMAGE GENERATOR UNIT HAVING SUCH AN ILLUMINATION MODULE

• Main Authors: ERLER, Christoph, VOJTISEK, Petr, GIEHL, Markus, JUNGHANS, Marc
• Format: Patent
• Language: English
• Published: 18.07.2024
• Subjects: 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

An illumination module for illuminating a surface has a beam source emitting illumination radiation, an extensive deflection hologram arranged at a distance from the surface to be illuminated, and a collimator optical unit at which the illumination radiation is directed, which collimates the illumination radiation and which emits the latter as collimated radiation incident on the deflection hologram, wherein the deflection hologram is designed such that it deflects the incident collimated radiation in the direction toward the surface to be illuminated and at the same time acts as a diffuser.