Optisches Beleuchtungssystem und Bildprojektor

Details

Veröffentlichungs-Nr.

EP2512128

Aktenzeichen

EP12163214

Anmeldetag

4. April 2012

Veröffentlichung

5. Juni 2013

Rechtsraum

EP

IPC

H04N5/74H04N9/31

Abstract

An illumination optical system include a first lens array (9, 11, 14, 16, 18) including multiple lens cells that split a light beam emitted from a light source into multiple light beams, a second lens array (10, 12, 15, 17, 19) including lens cells that the light beams split by the lens cells of the first lens array are incident thereon, and an optical element (6) configured to illuminate an image display element by superposing light beams emerging from the second lens array on the image display element. At least one of the first lens array and the second lens array includes at least two lens cells each having a curved surface that is formed so as to be continuous with a curved surface of an adjacent lens cell, the at least two lens cells being decentered, and at least two lens cells of the first lens array have different radii of curvature.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete