BEAM EXPANDER AND METHOD OF OPERATING THE SAME

BEAM EXPANDER AND METHOD OF OPERATING THE SAME

A beam expander (10) includes first (110) and second (120) optical elements spaced apart from each other, and a light diffuser (140) having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element (110) in-couples the diffused light such that l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SONG, Hoon, DUBININ, German B, CHOI, Chilsung, LEE, Hongseok, DUBYNIN, Sergey E, PUTILIN, Andrey N, MOROZOV, Aleksander V
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A beam expander (10) includes first (110) and second (120) optical elements spaced apart from each other, and a light diffuser (140) having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element (110) in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element (120), and the second optical element out-couples light incident from the first optical element.