Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Kenji Ueda

Kenji Sugiura

Hideo Nagai

Toshifumi Ogata

Masumi Abe

Tetsushi Tamura

Kazuyuki Okano

Yasufumi Wada

Kosuke Takehara

Keiji Kiba

Masashi Funakoshi

Toshikatsu Kotaki

A light-emitting device includes a substrate, first LEDs and second LEDs mounted on the substrate, multiple wirings separately formed on the substrate, and a conductive member for connecting adjacent two wirings in multiple wirings for establishing series connection, parallel connection, or a combination of series and parallel connections of the first LEDs and the second LEDs. This achieves the light-emitting device that can support multiple different specifications, using a single type of substrate.

Light-emitting device and lighting apparatus using the same

A light-emitting device including: a substrate; LEDs arranged on the substrate in a row; electrode pad pairs each including electrode pads at opposite sides of a corresponding LED in a row direction; Zener diodes (protective elements) in one-to-one correspondence to circuits (groups) Uto Ueach including nine consecutive LEDs, each protective element being located between adjacent electrode pads; and a sealing member sealing the LEDs, the electrode pad pairs, and the Zener diodes, wherein, in each circuit, a distance between electrode pads included in an electrode pad pair corresponding to an LED located closest to the Zener diode is the shortest, and a distance between electrode pads varies between two electrode pad pairs other than the electrode pad pair corresponding to the closest LED.

Light-emitting device each having variable distances between pairs of electrode pads with respect to Zener diodes and lighting apparatus using the same

A light-emitting device () includes a base (), a light-emitting element () placed on the base (), and a wavelength converting layer () that covers the light-emitting element (). The wavelength converting layer () includes a wavelength converting portion () that converts a wavelength of light from the light-emitting element (), and a light guide portion () made of a light-transmitting material, and the light guide portion () extends from a light-emitting element () side to a light extraction side of the wavelength converting layer (). Consequently, it is possible to provide a light-emitting device that can be miniaturized and reduced in thickness easily and can prevent a decrease in the light extraction efficiency.

Light-emitting device with a wavelength converting layer and method for manufacturing the same

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Nara, Japan

Kenji Ueda