Bildanzeigevorrichtung

Details

Veröffentlichungs-Nr.

EP2560393

Aktenzeichen

EP12180289

Anmeldetag

13. August 2012

Veröffentlichung

10. Oktober 2018

Erteilung

10. Oktober 2018

Rechtsraum

EP

IPC

H04N9/31G03B21/00G03B21/14G03B21/28G02B19/00

Abstract

Disclosed is an image displaying apparatus (100, 101) including a light source (1), a light condenser (2) for condensing light emitted from the light source (1) to form a condensed light image at a predetermined position, a light mixing element (13) having an entrance end near the condensed light image, a reflective image displaying element (7) having plural micro-mirrors (7-1 - 7-k) arranged two-dimensionally and configured to change an inclination angle of an individual micro-mirror (7-1 - 7-k) between an on-state and an off-state so that emission of reflected light turns on or off, an illumination optical system (8) including a condenser lens (3) and a mirror (4-5) for illumination arranged between an exit end of the light mixing element (13) and the reflective image displaying element (4), and a projection optical system (10) for projecting, onto a surface (101) to be projected, reflected light from a micro-mirror (7-1 - 7-k) being at an on-state among plural micro-mirrors (7-1 - 7-k) constituting the reflective image displaying element (7), wherein the mirror (7-1 - 7-k) for illumination is arranged at a position nearest the reflective image displaying element (7) on an optical path from the light mixing element (13) to the reflective image displaying element (7) and a reflection surface of this mirror (4-5) for illumination is positioned at a side of the reflective image displaying element (7) with respect to a projection lens system (10) constituting a part of the projection optical system (8).

Anmelder

Firmen

Ricoh Company, Ltd.
Ricoh Company Ltd.

Land

🇯🇵 Japan

Fachgebiete