Optical position sensing component, optical position sensing device, and manufacturing method thereof
AssigneeJsr Corporation
InventorsYuichi Eriyama, Jun Huangfu, Yukio Maeda
Life of this patent
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Abstract
An optical position sensing component includes an input light guiding portion and a received light guiding portion. The input light guiding portion is constituted by a polymer waveguide and inputs a light emitted from a near-infrared light-emitting source and outputs the light to a lens for collimate through a plurality of ends. The received light guiding portion is constituted by a polymer waveguide and inputs the light output from the light guiding portion and outputs the input light to a near-infrared light-receiving device. Further, the polymer waveguide has a core portion composed of a cured photosensitive resin composition.
Claims5
An optical position sensing component comprising:
- an input light guiding portion constituted by a polymer first waveguide for inputting a light emitted from a near-infrared light-emitting source and outputting the light to a plurality of lenses for collimate through a plurality of ends;
- and
- a received light guiding portion constituted by a plurality of polymer second waveguides for inputting the light output from the input light guiding portion and outputting the input light to a near-infrared light-receiving device,
- wherein the polymer first waveguide and polymer second waveguides have a core portion composed of a cured photosensitive resin composition,
- the photosensitive resin composition including
- (A) an adduct of a copolymer containing at least a hydroxyalkyl (meth) acrylate and a (meth) acrylic acid as a monomer, and an isocyanate compound containing at least one (meth) acryloxy group in a molecule;
- (B) a compound containing at least one ethylene unsaturated group in a molecule (excluding (A) components);
- and
- (C) a photopolymerization initiator.
An optical position sensing device comprising:
- an input optical component;
- and
- a light-receiving optical component disposed opposite to the input optical component over a plane substrate,
- wherein the input optical component comprises:
- a near-infrared light-emitting source;
- a plurality of lenses for collimate;
- and
- an input light guiding portion including an end portion for inputting a light emitted from the near-infrared light-emitting source and a polymer first waveguide having a plurality of ends for outputting the input light to the plurality of lenses for collimate,
- wherein the light-receiving optical component comprises:
- a plurality of near-infrared light-receiving devices;
- and
- a received light guiding portion including an end portion for inputting the light output from the input light guiding portion and a plurality of polymer second waveguides having other ends for outputting the input light to the plurality of near-infrared light-receiving devices, and
- wherein the polymer first waveguide and the plurality of polymer second waveguides have a core portion composed of a cured photosensitive resin composition,
- the photosensitive resin composition including
- (A) an adduct of a copolymer containing at least a hydroxyalkyl (meth) acrylate and a (meth) acrylic acid as a monomer, and an isocyanate compound containing at least one (meth) acryloxy group in a molecule;
- (B) a compound containing at least one ethylene unsaturated group in a molecule (excluding (A) components);
- and
- (C) a photopolymerization initiator.
A method of manufacturing an optical position sensing device comprising:
- manufacturing an input light guiding portion constituted by a polymer first waveguide including an end portion and a plurality of ends, and a received light guiding portion constituted by a plurality of polymer second waveguides, by curing a photosensitive resin composition;
- disposing a lens for optical collimate to the plurality of ends included in the input light guiding portion;
- disposing a near-infrared light-emitting source to the end portion;
- and
- disposing near-infrared light-receiving devices to the plurality of polymer second waveguides constituting the received light guiding portion respectively,
- wherein the photosensitive resin composition includes
- (A) an adduct of a copolymer containing at least a hydroxyalkyl (meth) acrylate and a (meth) acrylic acid as a monomer, and an isocyanate compound containing at least one (meth) acryloxy group in a molecule;
- (B) a compound containing at least one ethylene unsaturated group in a molecule (excluding (A) components);
- and
- (C) a photopolymerization initiator.
Dependencies are inferred from the claim text.