Panasonic Intellectual Property Management Co., Ltd.

Ran Zheng

Toshio Mori

Kohji Hiramatsu

Koji Omura

Tomoya Iwahashi

Mitsuru Nitta

Yoshihisa Nagasaki

Takahiro Hamada

Atsushi Motoya

Takashi Maniwa

Kenta Watanabe

Kazuhiro Matsuo

Sachiko Azuma

A wavelength converter includes, in sequence, a substrate, a reflective layer, and a phosphor layer. The phosphor layer contains a sealing layer and a phosphor dispersed in the sealing layer. The sealing layer is made of a hybrid material containing a glass component and a resin component.

Wavelength converter, projector, and lighting device

A phosphor layer contains phosphor particles, and satisfies the following relations: y&#x2265;0.0623x+0.2107x+28.789 and y&#x2264;&#x2212;0.1172x+7.584x+81.148 where x represents the average particle size (&#x3bc;m) of the phosphor particles, and y represents the thickness (&#x3bc;m) of the phosphor layer.

Phosphor layer, wavelength converter, projector, and lighting device

A wavelength conversion member includes a substrate, a dichroic mirror layer, an SiOlayer, a ZnO layer, and a phosphor layer, which are sequentially stacked from the substrate. The dichroic mirror layer reflects at least part of light incident from the above. The phosphor layer includes a plurality of phosphors and ZnO between the phosphors.

Wavelength conversion member, light emitting device, projector, and method of manufacturing wavelength conversion member

A light-emitting device includes a board; and light-emitting element arrays connected in parallel and each including light-emitting elements mounted on the board and connected in series. The light-emitting elements in each of the light-emitting element arrays include one or more red LED chips and one or more blue LED chips. Each of the red LED chips on the board is disposed non-successively to any other one of the red LED chips along a Y direction and along an X direction. The Y direction is parallel to a direction along which the red LED chips included in one of the light emitting arrays including the red LED chip are arranged. The X direction is perpendicular to the Y direction.

Light-emitting device with non-successive placement of light-emitting elements of one color, illumination light source having the same, and illumination device having the same

A light emitting device includes: a substrate; a first light emitting element and a second light emitting element that are mounted above the substrate; and a heat transfer pattern that is formed on the substrate. A rate of decrease in light output with respect to a temperature increase is greater for the second light emitting element than for the first light emitting element. The second light emitting element is mounted above the substrate via the heat transfer pattern, and the first light emitting element is mounted above the substrate without the heat transfer pattern.

Growing community of inventors

Osaka, Japan

Ran Zheng