Micro lens molding piece, micro lens molding piece producing method, micro lens stamper, micro lens stamper producing method, micro lens mold member, plastic lens array sheet, and projector
AssigneeRicoh Company, Ltd.
InventorMasaru Ohgaki
Life of this patent
Estimating the term…
Abstract
A micro lens molding piece includes a substrate having electrical conductivity at least on its surface. The surface is patterned with an insulation layer including at least one opening. An electro deposition start section is formed on the substrate and is exposed from the opening. An electro deposition start electrode is provided in the electro deposition start section and protrudes from the insulation layer by a prescribed length substantially determining a shape of a micro lens. A metal layer is electrically deposited in a shape of the micro lens by the electro deposition start electrode when electro deposition is performed.
Claims31
A micro lens molding piece, comprising:
- a substrate having electrical conductivity at least on its surface;
- said surface being patterned with an insulation layer, said insulation layer including at least one opening;
- an electro deposition start section exposed from the opening;
- an electro deposition start electrode provided in the electro deposition start section and protruding from the insulation layer by a prescribed length, said prescribed length substantially determining a shape of a micro lens;
- and
- a metal layer electrically deposited in a shape of the micro lens by the electro deposition start electrode.
A micro lens molding piece, comprising:
- a substrate having electrical conductivity at least on its surface;
- a concavity and convexity pattern formed on the surface of the substrate, a vertical interval of said concavity and convexity pattern being determined in accordance with a shape of the micro lens;
- an insulation layer formed on the concavity and convexity pattern, said insulation layer including at least one opening at a prescribed position of the concavity and convexity pattern;
- an electro deposition start section formed on the surface of the substrate and exposed from the opening;
- and
- a metal layer electrically deposited by the electro deposition start section.
A micro lens molding piece, comprising:
- a substrate having electrical conductivity at least on its surface, said surface being patterned with an insulation layer;
- a concavity and convexity pattern formed on the surface of the insulation layer, said insulation layer including at least one opening at a prescribed position;
- an electro deposition start section formed on the surface of the substrate and exposed from the opening;
- and
- a metal layer electrically deposited by the electro deposition start section.
A method for producing a molding piece in a micro lens shape, comprising the steps of:
- patterning a surface of a substrate having electrical conductivity at least on its surface with an insulation layer;
- forming an opening through the insulation layer at a prescribed position;
- providing an electro deposition start section exposed from the opening electrically depositing a metal from the electro deposition start section;
- and
- determining a radius of curvature of the micro lens shape by changing a relative position between the opening and the electro deposition start section.
A method for producing a molding piece in a micro lens shape, comprising the steps of:
- patterning a surface of a substrate having electrical conductivity at least on its surface with an insulation layer;
- forming an opening on the insulation layer;
- providing an electro deposition start section exposed from the opening;
- providing an electro deposition start electrode in the electro deposition start section;
- protruding the electro deposition start electrode from the insulation layer in accordance with the shape of the micro lens;
- and
- electrically depositing a metal by the electro deposition start electrode.
A method for producing a molding piece in a micro lens shape, comprising the steps of:
- forming a concavity and convexity pattern on a substrate;
- determining a vertical height in accordance with the micro lens shape;
- providing an insulation layer on the concavity and convexity pattern;
- forming an opening at a prescribed position of the concavity and convexity pattern through the insulation layer;
- providing an electro deposition start section in the opening on the surface of the substrate;
- and
- performing electro deposition by the electro deposition start section.
A method for producing a molding piece in a micro lens shape, comprising the steps of:
- providing an insulation layer on a substrate;
- forming a concavity and convexity pattern on the surface of the insulation layer;
- determining a protrusion shape of the concavity and convexity pattern in accordance with the shape of the micro lens;
- providing an opening through the insulation layer at a prescribed position;
- providing an electro deposition start section in the opening;
- and
- performing electro deposition using the electro deposition start section.
A method of making a micro lens comprising:
- providing a substrate having an upper surface and a protection over said upper surface, said protection leaving selectively shaped openings to the substrate;
- forming electro deposition start sections at said openings, said electro deposition start sections extending up from the substrate by vertical distances selected to determine shapes of micro lenses;
- electro depositing a material, using said start sections for said depositing, to grow lens-shaped structures of said material starting at said start sections;
- using said substrate, with said lens-shaped structures thereon, to make a lens stamper having depressions related in shape to said lens-shaped structures;
- and
- using said stamper for make a micro lens having lenses related in shape to said depressions.
Dependencies are inferred from the claim text.