US 2012/0075593 A1 · LENS ARRAY MODULE AND PROJECTION APPARATUS

Abstract

A lens array module includes a light incident surface, a light emitting surface opposite to the light incident surface, and a plurality of first and second lens surfaces. The first lens surfaces are arranged on the light incident surface to form into an array. The second lens surfaces are arranged on the light emitting surface to form into an array. The center of curvature of each of the first lens surfaces located at two opposite sides of a first reference point on the light incident surface deviates away from the first reference point in a direction parallel to a first reference axis, and the center of curvature of each of the second lens surfaces located at two opposite sides of a second reference point on the light emitting surface deviates toward the second reference point in a direction parallel to the first reference axis. A projection apparatus is also provided.

Claims19

Dependent claims

A lens array module, comprising:

a light incident surface;
a light emitting surface opposite to the light incident surface;
a plurality of first lens surfaces arranged on the light incident surface to form into an array;
and
a plurality of second lens surfaces arranged on the light emitting surface to form into an array, wherein a center of curvature of each of the first lens surfaces located at two opposite sides of a first reference point on the light incident surface deviates away from the first reference point in a direction parallel to a first reference axis, and a center of curvature of each of the second lens surfaces located at two opposite sides of a second reference point on the light emitting surface deviates toward the second reference point in a direction parallel to the first reference axis.

2 more elements

A projection apparatus, comprising:

a light source capable of emitting an illumination beam;
a lens array module disposed on a transmission path of the illumination beam, comprising:
a light incident surface;
a light emitting surface opposite to the light incident surface, wherein the illumination beam passes through the light incident surface and the light emitting surface in sequence;
a plurality of first lens surfaces arranged on the light incident surface to form into an array;
and
a plurality of second lens surfaces arranged on the light emitting surface to form into an array, wherein a center of curvature of each of the first lens surfaces located at two opposite sides of a first reference point on the light incident surface deviates away from the first reference point in a direction parallel to a first reference axis, and a center of curvature of each of the second lens surfaces located at two opposite sides of a second reference point on the light emitting surface deviates toward the second reference point in a direction parallel to the first reference axis;
and
a light valve disposed on the transmission path of the illumination beam from the lens array module, wherein the light valve is capable of converting the illumination beam into an image beam.

6 more elements

Dependencies are inferred from the claim text.

Lens array module and projection apparatus

Life of this patent

Lens array module and projection apparatus

Life of this patent

Abstract

Claims19