Seiko Epson Corporation

Mitsutoyo Tanaka

Tokihiro Shimura

Yoshinari Tanaka

Koei Nakabayashi

Nobuyuki Miyao

A method of manufacturing a microlens substrateis provided. The microlens substrateis provided with a plurality of microlenses. The method includes the steps of: preparing a substratewith concave portions having two major surfaces, each of the plurality of concave portionshaving a shape corresponding to that of each of the plurality of microlensesbeing formed on one of the two major surfaces of the substratewith concave portions; preparing a base material substratemainly formed of a resin material, the base material substratehaving two major surfaces; and pressure-joining the substratewith concave portions to the base material substratein a heating state. In this case, in the pressure-joining step, the substratewith concave portions is joined to the base material substrateso that the plurality of concave portionsare filled with the resin material of the base material substratewhich has been melted by the heat.

Method of manufacturing a microlens substrate, an opposed substrate for a liquid crystal panel, a liquid crystal panel and a projection type display apparatus

A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path defined by an inner circumferential surface of the nozzle through which the molten metal supplied from the supply part can pass. The inner circumferential surface of the nozzle has a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject water toward the flow path. The nozzle has a first member having the gradually reducing inner diameter portion and a second member provided below the first member with a space left between the first member and the second member. The orifice is defined by the first member and the second member. A heat absorption body is provided on the first member. The absorption body serves as a restraint means for, when heated, deforming a surrounding region of the gradually reducing inner diameter portion of the first member to thereby restrain the orifice from being enlarged by the pressure of the water passing through the orifice.

Metal powder production apparatus

A method of manufacturing a microlens substrate having a plurality of microlenses includes the steps of: preparing a substrate having two major surfaces and a plurality of concave portions formed in one of the two major surfaces, each of the concave portions having a shape corresponding to that of each of the microlenses being formed in the one of the two major surfaces of the substrate; preparing a base material substrate formed of glass having a transformation point lower than that of a constituent material constituting the substrate; and pressure-joining the substrate to the base material substrate in a heating state. In the pressure-joining step, the substrate is joined to the base material substrate and the concave portions fill with the glass material of the base material substrate which is melted by the heat.

Method of manufacturing a microlens substrate comprising pressure-joining a substrate to a base material in a state that the base material is heated while cooling the other major surface of the base material

A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle having a first member and a second member by which an orifice for injecting water is defined. The first member has a gradually reducing inner diameter portion. A heat insulating layer for cutting off radiant heat emitted from the molten metal is formed on the gradually reducing inner diameter portion of the first member. the nozzle is configured to ensure that the gradually reducing inner diameter portion is prevented, under an action of the heat insulating layer, from being thermally deformed by the radiant heat of the molten metal but a region of the first member near the orifice is thermally deformed in such a direction as to reduce a size of the orifice by absorbing the radiant heat of the molten metal, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.

A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path through which the molten metal supplied from the supply part can pass, the flow path having a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject fluid toward the flow path. The nozzle has a first member and a second member provided below the first member with a space left between the first member and the second member, wherein the orifice is defined by the first member and the second member. A clamp for restraining the orifice from being enlarged by the pressure of the fluid passing through the orifice is provided on the nozzle.

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Chino, Japan

Mitsutoyo Tanaka