Lens array and image display device
Provided is a lens array in which a plurality of convex lenses bidimensionally regularly-arranged along a predetermined reference face. The plurality of convex lenses is arranged so as to be inclined variedly mutually among the plurality of convex lenses around a vertex of a convex face of a reference posture as a rotation axis with respect to the reference posture mutually common to the plurality of convex lenses.
1. A lens array, comprising:
a plurality of convex lenses bidimensionally regularly-arranged along a predetermined reference face, wherein
the plurality of convex lenses includes lenses each of which is rotated around a vertex of a convex face of a reference posture, and lenses not rotated therearound, so that a rotational angle of each lens varies at the center of the vertex including 0°, the reference posture being defined as a posture in which the plurality of convex lenses is arranged such that height thereof from the reference face becomes same.
2. The lens array according to claim 1 , wherein the plurality of convex lenses is bidimensionally arranged in a honeycomb fashion.
3. An image display device, comprising:
a light source projecting a light representing an image; and
a transparent screen on which the light projected by the light source is irradiated, wherein
the screen includes a lens array in which a plurality of convex lenses are bidimensionally regularly-arranged along a reference face intersecting with the light projected by the light source, and wherein
the plurality of convex lenses includes lenses each of which is rotated around a vertex of a convex face of a reference posture, and lenses not rotated therearound, so that a rotational angle of each lens varies at the center of the vertex including 0°, the reference posture being defined as a posture in which the plurality of convex lenses is arranged such that height thereof from the reference face becomes same.