Nichia Corporation

Tomohisa Kishimoto

Masafumi Kuramoto

Tsuyoshi Okahisa

Tomohide Miki

Masaki Hayashi

Toshiyuki Fujii

Hiroto Tamaki

Mayumi Fukuda

Suguru Takashima

Tomoya Tsukioka

Kazuhiro Kamada

Masaaki Katsumata

Yusaku Achi

Koji Abe

Masakazu Sakamoto

Takahiro Naitou

Satoshi Yoshinaga

Masato Aihara

Takayuki Sano

Shoji Hosokawa

Shinichi Nagahama

Takafumi Sugiyama

Masatoshi Kameshima

Atsutomo Hama

Masanobu Sato

Kenichi Aoyagi

Junji Takeichi

Taiki Yuasa

Takayuki Shinohara

Shoichi Kashihara

Takeshi Kihara

Hitomi Miki

A method of manufacturing a lens includes: injecting a thermosetting first resin in a first mold, and curing the thermosetting first resin, to form a cover blank having cover parts; removing a part or all parts of the first mold; arranging the cover blank in a second mold; injecting a thermosetting second resin having a greater light absorptance or a greater light reflectance than the thermosetting first resin into the second mold and curing the thermosetting second resin, to form a lens blank having a light-shielding part between adjacent ones of the cover parts; taking out the lens blank from the second mold; cutting the lens blank at the light-shielding part located between the adjacent ones of the cover parts to obtain individual lenses having lateral side walls and flange parts extending outward from lower-end portions of the lateral side walls, which are both covered by the light-shielding part.

Method of manufacturing lens and light emitting device

A method of manufacturing a lens including forming a cover blank having cover parts by injecting a thermosetting first resin in a first mold and curing the thermosetting first resin, removing a part or all parts of the first mold, and arranging the cover blank in a second mold. The method further includes forming a lens blank having a light-shielding part between adjacent cover parts by injecting a thermosetting second resin having a greater light absorptance or light reflectance than the thermosetting first resin into the second mold and curing the thermosetting second resin, and obtaining individual lenses by taking out the lens blank from the second mold, and cutting the lens blank at the light-shielding part located between adjacent cover parts to obtain individual lenses each with lateral end surfaces and an upper surface of each of flange parts and lateral side walls covered by the light-shielding part.

A lens includes a cover part and an interposing member formed of a light-reflecting material. The cover part includes a lens part having a lateral side, a connection part constituting a lateral side wall extending from the lateral side, and a flange part having a lower surface disposed below the lateral side wall. The interposing member has an upper surface and an inner lateral surface. The upper surface is disposed on the lower surface of the flange part. The lens part and the interposing member define a recess having an opening facing downward. The lens part defines a bottom surface of the recess. The inner lateral surface defines a lateral surface of the recess, which defines the opening of the recess. The flange part extends outward from the opening. The lens part has a convex lens and a light-emitting surface with projections outward from the convex lens.

Lens and light emitting device

A printed circuit board includes a printed wiring board including an insulative substrate having a first surface and a second surface opposite to the first surface, and wiring provided on the second surface of the insulative substrate to face the through-holes. The insulative substrate has flexibility and through-holes passing through the insulative substrate from the first surface to the second surface. A semiconductor element is mounted on the first surface of the insulative substrate of the printed wiring board and has element terminals interposed between the printed wiring board and the semiconductor element. Conductive members filled in the through-holes connect the element terminals and the wiring. The insulative substrate has elasticity in which an elongation percentage of the insulative substrate is 20% or more. The wiring is formed from a conductive polymer or an elastic conductive paste in which conductive particles are mixed into a resin material.

Printed circuit board

A lens includes a cover part and a light-shielding part. The cover part includes a lens part, a connection part, and a plurality of flange parts, formed with a thermosetting first resin and continuous to one another. The light-shielding part covers lateral end surfaces and an upper surface of each of the flange parts and outer lateral sides of the connection part and formed with a thermosetting second resin having a greater light-absorptance or a greater light-reflectance than the thermosetting first resin.

Lens, light emitting device and method of manufacturing the lens and the light emitting device

A lens includes a cover part and a light-shielding part. The cover part includes a lens part, a connection part extending downward from lateral sides of the lens part, and one or more flange parts each extending outward from a lower-end portion of the connection part. The lens part and the connection part define a recess having an opening facing downward. The flange parts extend outward from a periphery of the opening of the recess. The lens part, the flange parts, and the connection part are formed of a thermosetting first resin and continuous to one another. The light-shielding part covers outer lateral surface of the connection part and is formed of a thermosetting second resin having a greater light-absorptance or a greater light-reflectance than the thermosetting first resin. The flange parts have a greater thickness than the connection part.

The present invention provides a surface mounted light emitting apparatus which has long service life and favorable property for mass production, and a molding used in the surface mounted light emitting apparatus. The surface mounted light emitting apparatus comprises the light emitting devicebased on GaN which emits blue light, the first resin moldingwhich integrally molds the first leadwhereon the light emitting deviceis mounted and the second leadwhich is electrically connected to the light emitting device, and the second resin moldingwhich contains YAG fluorescent material and covers the light emitting device. The first resin moldinghas the recesscomprising the bottom surfaceand the side surfaceformed therein, and the second resin moldingis placed in the recess. The first resin moldingis formed from a thermosetting resin such as epoxy resin by the transfer molding process, and the second resin moldingis formed from a thermosetting resin such as silicone resin.

Resin molding, surface mounted light emitting apparatus and methods for manufacturing the same

A printed circuit board includes a printed wiring board, a semiconductor element, and conductive members. The printed wiring board includes an insulative substrate having a first surface and a second surface opposite to the first surface, and wiring provided on the second surface of the insulative substrate to face the through-holes. The insulative substrate has flexibility and through-holes passing through the insulative substrate from the first surface to the second surface. The semiconductor element is mounted on the first surface of the insulative substrate of the printed wiring board and has element terminals interposed between the printed wiring board and the semiconductor element. The conductive members filled in the through-holes connect the element terminals and the wiring.

Printed circuit board and method of manufacturing the same

A light-emitting device includes: at least one light-emitting element; a first light-transmissive member covering the light-emitting element; a second light-transmissive member covering the first light-transmissive member; and a light-diffusing member in the second light-transmissive member. The light-diffusing member includes hollow particles. The second light-transmissive member has a bottom surface having irregularities due to presence of the light-diffusing member.

Light-emitting device and method of manufacturing the same

A package includes a first electrode and a second electrode that are located at a bottom portion of a bottomed recess, and a first resin securing the first electrode and the second electrode in place and forming a part of the bottomed recess. The first electrode has a first outer lead having a first indentation at a tip in a plan view. The second electrode has a second outer lead having a second indentation at a tip in a plan view. The first resin has at least a portion between the first electrode and the second electrode located at the bottom portion of the bottomed recess, wall portions structuring lateral walls of the bottomed recess, and flange portions having the same thickness as a thickness of the first outer lead and different outward widths from the wall portions on both sides of the first outer lead in a plan view.

Package and light emitting device

A method for manufacturing a package includes molding a precursor of a package including a cup-shaped resin component having a bottom surface and side walls, an opening opened at an upper part of the side walls, and a pair of leads exposed on the bottom surface. The side walls include a side wall that extends along the Y axis and the X axis and that has a first outer surface, and a side wall that extends along the Y axis and the Z axis. A thickness of the side wall extending along Y axis and the X axis is less than a thickness of the side wall extending along axis and the Z axis. The first outer surface has a recess which is recessed in the Z axis direction and arranged in a position corresponding to the opening. The method further includes forming a reflective film in the recess.

Method for manufacturing package, and method for manufacturing light emitting device

A package has a bottomed recess with a bottom portion. The package includes: a first electrode having a first outer lead portion and disposed in the bottom portion; a second electrode having a second outer lead portion and disposed in the bottom portion; and a first resin fixing the first electrode and the second electrode and constituting a part of the bottomed recess. The first resin has: a part between the first electrode and the second electrode disposed in the bottom portion; a wall portion constituting side walls of the bottomed recess; and a flange portion having a first part located adjacent to at least one of both sides of the first outer lead portion in plan view. The first part has a thickness different from a thickness of the first outer lead portion. A light emitting has: the package; and a light emitting element mounted on at least one of the first electrode and the second electrode of the package.

A base has a base surface. Light emitting elements are disposed on the base surface along an X-axis with an X pitch and along the Y axis with a Y pitch to form a matrix. The X pitch is smaller than the Y pitch. Lenses has a batwing illumination distribution. Each of the lenses covers each of the light emitting elements. A first lenticular lens sheet is provided on the base such that a first lenticular lens sheet lower surface is opposite to the base surface. A second lenticular lens sheet is provided on the first lenticular lens sheet such that a second lenticular lens sheet lower surface is opposite to a first lenticular lens sheet upper surface. A third lenticular lens sheet is provided on the second lenticular lens sheet such that a third lenticular lens sheet lower surface is opposite to a second lenticular lens sheet upper surface.

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Anan, Japan

Tomohisa Kishimoto