Rohm Co., Ltd.

Iris Ohyama Inc.

Yusaku Kawabata

Toshio Watanabe

Toshiyuki Fujita

Hideharu Osawa

Hiroshi Fukumoto

Hirotaka Shimizu

Hiroyuki Fukui

Takao Iemoto

Tomohiro Ikuta

Tetsuya Sasahara

An LED lamp A includes a plurality of LED moduleseach including an LED chip, and a support memberincluding a support surfaceon which the LED modulesare mounted. The LED modulesinclude a plurality of kinds of LED modules, or a first through a third LED modulesA,B andC different from each other in directivity characteristics that represent light intensity distribution with respect to light emission directions. This arrangement ensures that the entire surrounding area can be illuminated with sufficient brightness.

LED lamp

Sensor for a signal lamp

A lighting device includes a substrate having a side extending straight in a first direction and a first LED chip supported by the substrate and having a first anode terminal and a first cathode terminal. The lighting device includes a second LED chip and a third LED chip supported by the substrate, being electrically connected to the second cathode terminal, and being overlapped with the first LED chip when viewed in a second direction that is perpendicular to the first direction. The lighting device includes a connecting portion that connects the first cathode terminal and the second anode terminal with each other, at least a portion of the connecting portion angled at an acute angle with respect to the second direction.

Lighting device

The wireless module according to the present invention includes a wireless IC chip for processing transmission/reception signals, a substrate on which the wireless IC chip is mounted, an antenna provided on the substrate, and a plurality of terminals extending off from the substrate in an in-plane direction of the substrate.

Wireless module with plural in-plane terminals

An LED lamp Aincludes a plurality of LED modulesand a substrateon which the LED modulesare mounted in a row. A light guidecovering the LED modulesis provided on the substrate. The light guideis held in close contact with each of the LED modules. With this arrangement, a proper amount of light is obtained with the use of a smaller number of LED modulesor with less power consumption.

A lighting device includes a substrate and a planar light source portion including a plurality of LED chips arrayed on the substrate. The planar light source portion faces an illumination space (space to be illuminated) by a predetermined opening area. The plurality of LED chips are arrayed on the substrate such that the mounting density with respect to the opening area is not less than 3/cm, and accordingly, a planar light source is formed.

Growing community of inventors

Kyoto, Japan

Yusaku Kawabata