Marker
AssigneeEnplas Corporation
InventorTakahiro IZAWA
Life of this patent
Estimating the term…
Abstract
A marker includes a plurality of convex lenses each including a plurality of convex lenses each including a convex surface part on a front side; and a plurality of patterns formed on a rear surface of the plurality of convex lenses, each pattern corresponding to the convex surface part. Each of the plurality of patterns is composed of optically distinguishable first and second parts formed by a surface shape of the rear surface. The second part is disposed on each corresponding convex surface part. A distance between optical axes of the convex lenses which are adjacent is constant. A distance between centers of the second parts which are adjacent is different from the distance between the optical axes.
Claims5
A marker comprising:
- a plurality of convex lenses each including a convex surface part on a front side;
- and
- a plurality of patterns formed on a rear surface of the plurality of convex lenses, each pattern corresponding to the convex surface part, wherein,
- each of the plurality of patterns is composed of optically distinguishable first and second parts formed by a surface shape of the rear surface, the second part being disposed on each corresponding convex surface part,
- a distance between optical axes of the convex lenses which are adjacent is constant, and
- a distance between centers of the second parts which are adjacent is different from the distance between the optical axes.
Dependencies are inferred from the claim text.