Optisches Beleuchtungssystem und Projektorvorrichtung

Details

Veröffentlichungs-Nr.

EP2490070

Aktenzeichen

EP12155327

Anmeldetag

14. Februar 2012

Veröffentlichung

23. Oktober 2013

Erteilung

23. Oktober 2013

Rechtsraum

EP

IPC

G03B21/20G03B33/12G02B27/09G02B27/28G02B27/10G02B27/14H04N9/31

Abstract

An illuminating optical system includes: a substantially rectangular-shaped light source that includes a light emitting surface with a split pattern formed thereat by a splitting line, the splitting line extending along a predetermined direction and splitting the light emitting surface into a plurality of separate areas; an illumination-target member that includes a rectangular radiation-target area; and an optical member in that condenses light departing the light emitting surface and radiates the condensed light toward the radiation-target area, wherein: an extent of uneven illumination attributable to an image of the split pattern at the light emitting surface of the light source, formed at the illumination-target member, is reduced.

Anmelder

Firma

Nikon Corporation

Land

🇯🇵 Japan

Fachgebiete