Sharp Kabushiki Kaisha Corporation

Takahiro Nakahashi

Hiroyuki Hanato

Kenji Hirano

Norimichi Shigemitsu

Yuji Yano

Tetsuya Tamiya

A lens molding apparatus () of the present invention includes: a mold () having a transfer surface (); a mold () having a transfer surface (); heating devices (and) for curing, by heating, a resin material which is supplied to the transfer surface () and against which the transfer surface () is pressed; a pressure control section () for controlling a support device () so that the support device () applies a pressure on the resin material; and a DC power source () for forming an electric field by applying a voltage between the molds (and).

Molding apparatus and molding method

A molding apparatus () includes: a servomotor () for pressing a resin component (W) by moving an upper mold (MU) in a direction in which the upper mold (MU) is made close to a lower mold (ML); servomotors (and) each of which retains X-coordinate and Y-coordinate positions of the lower mold (ML); and a position detection section () which determines whether or not the resin component which is sandwiched between the upper mold and the lower mold has been cured, the servomotors each terminating the retention of the lower mold when the resin component has been cured. This makes it possible to obtain a molded product while preventing positional displacement caused by a decrease in volume of a resin which is being cured.

Molding apparatus, molding apparatus unit, and molding method

An annealing method according to the present invention is an annealing method of annealing a molded body () which is molded from a molding material in a molding step, and the method includes the steps of: (I) releasing stress from the molded body () by heating the molded body (); and (II) correcting a warp of the molded body (), by simultaneously heating the molded body () and applying a load to the molded body (). This achieves an annealing method which makes it possible to obtain a molded body that is free from residual stress and distortion.

Annealing method, annealing jig and annealing apparatus

A lens molding apparatus () of the present invention includes: a mold () having a transfer surface () for transferring a predetermined lens shape to a resin material; a mold () having a transfer surface () for transferring a predetermined lens shape to the resin material; a support device () for moving the mold (); a heating device () curing the resin material so as to form a lens, the resin material having been supplied between the transfer surface () and the transfer surface (); and an ultrasonic vibrator () applying vibration from a side surface of the mold (or) so as to form a gap at least at a part between the transfer surface (or) and the lens.

Resin molding apparatus and resin molding method

A molded product manufacturing method and a molded product manufacturing apparatus are realized, each of which has improved quality and productivity of a molded product. A pressure to be applied to an upper mold (ML) and a lower mold (ML) is reduced in stages during a process from a start of decrease in internal temperatures of the upper mold (ML) and the lower mold (ML) to a complete mold-release of a resin component (W). This prevents an excessive load from being applied to the resin component (W) which has been molded but has not been mold-released.

Molded product manufacturing apparatus, and molded product manufacturing method

When an optical element is produced by sandwiching a resin between a pair of molds, the resin is cured while a mold is kept in contact with the resin until the temperature of the resin reaches a gel point. Throughout the process, a load cell monitors pressure exerted to the mold. After detection of a state in which the pressure exerted to the mold is a negative pressure, the resin is cured while the position of the mold is controlled so that the pressure exerted to the mold is increased to a predetermined positive pressure and thereafter the positive pressure is maintained.

Optical element producing device, optical element producing method, controlling program, and recording medium

A lens molding apparatus of the present invention includes: a mold having a transfer surface for transferring a predetermined lens shape to a dielectric resin; a mold having a transfer surface for transferring a predetermined lens shape to the dielectric resin; a support device moving the mold; a heating device heating the dielectric resin so as to form a resin molded product, the dielectric resin having been supplied on the transfer surface; a DC power source forming an electric field by application of direct-current voltage between the mold and the mold; and switches switching a direction of the electric field between a direction from the mold to the mold and a direction from the mold to the mold.

An optical element according to the present invention includes: an optical surface at a center portion thereof; a spacer section having a predetermined thickness on an outer circumference side of the optical surface; a support plate including one or a plurality of through holes penetrating the optical surface, inside a transparent resin material; and a penetrating portion and/or a concave portion for releasing the resin material when forming resin, in a further outer peripheral portion of the support plate.

Optical element, optical element wafer, optical element wafer module, optical element module, method for manufacturing optical element module, electronic element wafer module, method for manufacturing electronic element module, electronic element module and electronic information device

In order to realize a device and a method each capable of forming a lens with high accuracy and low costs, a lens forming device of the present invention includes a metal mold, an insulating substrate, a stage, a power source, a switch, and a UV radiating device. Dielectric resin is supplied onto the insulating substrate and a transfer surface of the metal mold is pressed to the dielectric resin so as to transfer a lens shape to the dielectric resin. At that time, the power source applies a voltage on the metal mold to generate an electric field between the metal mold and the insulating substrate so that an electrostatic attraction causes the dielectric resin to be attracted toward the transfer surface of the metal mold while the top of the dielectric resin has a sharp cuspate shape. Consequently, bubbles are less likely to be invade between the transfer surface and the dielectric resin, allowing transferring a highly accurate lens shape to the dielectric resin.

Device and method for forming lens

A liquid discharging nozzle of the present invention includes (i) a liquid reservoir for reserving a discharging liquid and (ii) a discharging tube connected to a bottom part of the liquid reservoir. A water-repellent layer is provided on an inner surface of the discharging tube, on an inner surface of the discharging tube, and on an inner surface of the liquid reservoir, and is a fluorinated water-repellent layer. An aluminum oxide layer and a silicon oxide layer are used as foundation layers of the fluorinated water-repellent layer. The aluminum oxide layer, the silicon oxide layer, and the fluorinated water-repellent layer, which are stacked together, have a combined thickness of not more than 25 nm. The fluorinated water-repellent layer alone has a thickness of 1 nm to 4 nm.

Growing community of inventors

Osaka, Japan

Takahiro Nakahashi