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US 10,591,647 B2Granted
Marker, method for manufacturing same, and optical component
AssigneeEnplas Corporation
InventorsTomohiro Saito, Yuta Kawamoto, Yuya Oshima, Mitsuaki Shiota
Life of this patent
Estimating the term…
Abstract
A transparent resin is injection molded to create a marker (10) as an integrally molded article (lenticular lens portion (11)) including convex surfaces (112) and recesses (113) formed on the rear side of the convex surfaces. The recesses (113) are filled with coating films (115) formed by applying and curing a fluid coating material. Each recess (113) is arranged corresponding to a convex surface (112) so that the coating films (115) can be observed as optically distinguishable from the side of the convex surfaces (112).
Claims16
A marker comprising:
- a convex lens group made of a transparent resin and including:
- a plurality of convex lens parts each of which includes a convex surface part disposed on a front surface side of each of the plurality of convex lens parts,
- a first part disposed on a rear surface side of each of the plurality of convex lens parts, and
- a second part disposed on the rear surface side of each of the plurality of convex lens parts, the first part being arranged corresponding to each convex surface part, the second part being a part other than the first part;
- and
- a plurality of coating films formed only on either a plurality of first parts or a plurality of second parts,
- wherein a positional relationship between each of the plurality of convex lens parts and each first part corresponding to each other differs among the plurality of convex lens parts in a direction perpendicular to optical axes of the plurality of convex lens parts, and
- wherein the marker satisfies the following requirements (1) or (2):
- (1) each first part is a recess and each second part is a protrusion,
- in a cross section of the plurality of convex lens parts, the recess includes a pair of walls located at opposite positions,
- in the cross section of the plurality of convex lens parts, the protrusion includes a pair of edges located at opposite positions, and
- each coating film is formed entirely between the pair of walls of the recess or entirely between the pair of edges of the protrusion, and
- (2) each first part is a protrusion and each second part is a recess,
- in the cross section of the plurality of convex lens parts, the protrusion includes a pair of edges located at opposite positions,
- in a cross section of the plurality of convex lens parts, the recess includes a pair of walls located at opposite positions, and
- each coating film is formed entirely between the pair of edges of the protrusion of entirely between the pair of walls of the recess.
13 more elements
A marker comprising:
- a convex lens group made of a transparent resin and including:
- a plurality of convex lens parts each of which includes a convex surface part disposed on a front surface side of each of the plurality of convex lens parts,
- a first part disposed on a rear surface side of each of the plurality of convex lens parts, and
- a second part disposed on the rear surface side of each of the plurality of convex lens parts, the first part being arranged corresponding to each convex surface part, the second part being a part other than the first part;
- a plurality of first coating films formed on a plurality of first parts;
- and
- a plurality of second coating films formed on a plurality of second parts, each second coating film being optically discriminable from each first coating film,
- wherein a positional relationship between each of the plurality of convex lens parts and each first part corresponding to each other differs among the plurality of convex lens parts in a direction perpendicular to optical axes of the plurality of convex lens parts, and
- wherein the marker satisfies the following requirement (1) or (2):
- (1) each first part is a recess and each second part is a protrusion,
- in a cross section of the plurality of convex lens parts, the recess includes a pair of walls located at opposite positions,
- in the cross section of the plurality of convex lens parts, the protrusion includes a pair of edges located at opposite positions, and
- each first coating film is formed entirely between the pair of walls of the recess and each second coating film is formed entirely between the pair of edges of the protrusion, and
- (2) each first part is a protrusion and each second part is a recess,
- in the cross section of the plurality of convex lens parts, the protrusion includes a pair of edges located at opposite positions,
- in a cross section of the plurality of convex lens parts, the recess includes a pair of walls located at opposite positions, and
- each first coating film is formed entirely between the pair of edges of the protrusion and each second coating film is formed entirely between the pair of walls of the recess.
14 more elements
Dependencies are inferred from the claim text.