US 2010/0165299 A1 · PROJECTOR

Abstract

A projector includes: a light source that emits light; a first lens array that divides the light emitted from the light source into a plurality of partial light beams; a second lens array that focuses the plurality of partial light beams emitted from the first lens array; condenser lenses that superimpose the plurality of partial light beams emitted from the second lens array on target illumination regions; and liquid crystal panels that modulate the light beams passing through the condenser lenses according to image information, wherein each of the condenser lenses is a single lens that achieves telecentric illumination when superimposing the partial light beams, and only the condenser lenses are arranged as lenses between the second lens array and the liquid crystal panels.

Claims20

Dependent claims

A projector comprising:

a light source that emits light;
a first lens array that divides the light emitted from the light source into a plurality of partial light beams;
a second lens array that focuses the plurality of partial light beams emitted from the first lens array;
condenser lenses that superimpose the plurality of partial light beams emitted from the second lens array on target illumination regions, each of the condenser lenses being a single lens that achieves telecentric illumination when superimposing the partial light beams;
and
liquid crystal panels that modulate the light beams passing through the condenser lenses according to image information, the condenser lenses arranged as the only lenses between the second lens array and the liquid crystal panels.

3 more elements

A projector comprising:

a light source that emits light;
a first lens array that divides the light emitted from the light source into a plurality of partial light beams;
a second lens array that focuses the plurality of partial light beams emitted from the first lens array;
a single condenser lens that superimposes the plurality of partial light beams emitted from the second lens array on target illumination regions, the condenser lens being a single lens that achieves telecentric illumination when superimposing the partial light beams;
and
liquid crystal panels that modulate the light beams passing through the condenser lenses according to image information, the liquid crystal panels including a first liquid crystal panel and a liquid second crystal panel, the condenser lens arranged as the only lens between the second lens array and the first liquid crystal panel and the condenser lens arranged as the only lens between the second lens array and the second liquid crystal panel.

3 more elements

Dependencies are inferred from the claim text.

Projector

Life of this patent

Projector

Life of this patent

Abstract

Claims20