Abstract:
A method for molding an optical member (65) from a material of a nanocomposite resin (61) which includes a thermoplastic resin containing inorganic fine particles is provided. The method includes: charging a solution containing a solvent and the nanocomposite resin into a vessel (17) providing at least an optical surface shape (19a) and an opening (12) to an atmosphere, and evaporating the solvent from the opening to solidify and form an optical surface of the optical member into a finished shape.
Abstract:
An organic-inorganic hybrid composition comprising inorganic fine particles and a thermoplastic resin, wherein the thermoplastic resin has a structure in which a functional group capable of forming a chemical bond with the inorganic fine particles bonds to a main chain of the resin via a linking chain having a chain length of 4 or more atoms.
Abstract:
A method for manufacturing an optical member (11) is provided and includes: discharging a droplet (51) of a solution a transparent thermoplastic resin and solidifying the droplet on a substrate (13) on a basis of profile data of the optical member to shape the optical member, in which a process of discharging droplets of the solution on different positions of the substrate and solidifying the droplets by drying is repeated a plurality of times to height according to the profile data; and separating the shaped optical member from the substrate.
Abstract:
A preform for press working which is an aggregate with fluidity and a manufacturing method thereof are provided, the preform being obtained by a method comprising: aggregating a thermoplastic resin containing inorganic fine particles supplied as a powder-particle material while at least partially maintaining a state of the powder-particle material.
Abstract:
A method for producing an optical member from a nanocomposite material which includes a thermoplastic resin containing inorganic fine particles is provided. The method includes: a first step of preparing in a solution the thermoplastic resin containing the inorganic fine particles; a second step of drying and solidifying the solution containing the prepared thermoplastic resin to produce the nanocomposite material having a specific surface area (surface area/volume) of 15 mm-1 or more; and a third step of heat-compressing the produced nanocomposite material to form the optical member in a desired shape.
Abstract:
A resin material measuring method which obtains a prescribed amount of a resin material by measuring liquid resin material, the resin material measuring method including: charging the resin material having a fluidity into an internal space of a cylinder (10) using a cylinder-piston mechanism which includes: the cylinder having a discharge aperture (15) at one end (10c) and the internal space being constant in cross-sectional area; and a piston (11) which is inserted in the internal space; determining a necessary movement stroke length of the piston corresponding to the resin material of a prescribed volume according to a relationship between the volume of the resin material and the cross-sectional area and the movement stroke length; discharging the resin material from the cylinder through the discharge aperture by moving the piston by the determined movement stroke length; and cutting the discharged resin material from the resin material located inside the cylinder.
Abstract:
A method for manufacturing an optical member is provided and includes: discharging a droplet of a solution including a transparent thermoplastic resin and solidifying the droplet on a substrate on a basis of profile data of the optical member to shape the optical member, in which a process of discharging droplets of the solution on different positions of the substrate and solidifying the droplets by drying is repeated a plurality of times to stack the thermoplastic resin so that the stacked thermoplastic resin have a height according to the profile data; and separating the shaped optical member from the substrate.
Abstract:
A method for producing an optical member from a nanocomposite material which includes a thermoplastic resin containing inorganic fine particles is provided. The method includes: a first step of preparing in a solution the thermoplastic resin containing the inorganic fine particles; a second step of drying and solidifying the solution containing the prepared thermoplastic resin to produce the nanocomposite material having a specific surface area (surface area/volume) of 15 mm-1 or more; and a third step of heat-compressing the produced nanocomposite material to form the optical member in a desired shape.
Abstract:
A plastic lens molding method includes: preparing a lens preform having the temperature equal to or higher than a glass transition point temperature; and molding a lens by compressing the lens preform having the temperature equal to or higher than the glass transition point temperature, the compressing of the lens preform being performed by a mold providing a finished lens dimension at a constant temperature equal to or lower than the glass transition point temperature.
Abstract:
A method for manufacturing an optical member from a powdery nano composite material, which includes a thermoplastic resin containing inorganic fine particles, is provided. The method includes: preparing an aggregated intermediate body by heating the powdery nano composite material; and forming the optical member having a finished shape by heat-press molding the intermediate body.