Matsushita Electric Industrial Co., Ltd.

Takayuki Imai

Mamoru Takeda

Satoshi Kominami

Masayoshi Gyoten

Masanobu Murakami

Masaaki Sato

Koji Miyazaki

Kazuhiko Ito

Kunio Yoshida

Kouji Miyazaki

Motohiko Naka

Takehiko Shida

Kenichiro Takahashi

Makoto Shimizu

Ikuo Akamine

Yoshiaki Uchida

A self-ballasted fluorescent lamp includes a fluorescent lamp and a ballast circuit for operating the fluorescent lamp. The ballast circuit includes: a printed circuit board ; a heat generating component disposed on a first face of the printed circuit board, which generates heat when the fluorescent lamp is operated; and a semiconductor component disposed on a second face opposite to the first face of the printed circuit board , and wherein the semiconductor component is disposed in an area other than an area on the second face corresponding to an area of the first face where the heat generating component is disposed.

Compact self-ballasted fluorescent lamp

A fluorescent lamp operating apparatus comprises a power switching element electrically connected to a fluorescent lamp having a pair of electrodes, and means for limiting the current flowing through the power switching element by controlling its conductance so as to prevent the power switching element from being broken by a large current flowing from the power line through the fluorescent lamp when the impedance between the pair electrodes decreases from infinity at the start-up of the fluorescent lamp.

Fluorescent lamp operating apparatus

Disclosed is a dimmable fluorescent lamp operating apparatus which comprises a fluorescent lamp, electrical characteristic detecting element for detecting an electrical characteristic of the fluorescent lamp, an inverter circuit for driving the fluorescent lamp, and a feedback controlling circuit for controlling the drive frequency of the inverter circuit such that the electrical characteristic of the fluorescent lamp becomes a predetermined value, wherein the feedback controlling circuit includes temperature detecting element for detecting the temperature of the fluorescent lamp and wherein the frequency characteristic bandwidth of the feedback controlling circuit is varied based on the detected fluorescent lamp temperature.

Fluorescent lamp operating apparatus and compact self-ballasted fluorescent lamp

A picture processing apparatus is composed of an infrared ray sensor for producing an infrared picture in which a heat distribution of a measured area is recorded, a picture processing section for processing the infrared picture to extract pieces of personal characteristic data and environmental characteristic data from the infrared picture, and a picture information detecting section composed of a neural network for detecting pieces of personal information and environmental information according to the characteristic data. To be concrete, one or more human-areas respectively recording one or more persons are picked out from the infrared picture, and representative points of the human-areas, the number of human-areas, the number of pixels in each of the human-areas and shapes of the human-areas are extracted as the personal characteristic data. Also, the number of persons in each of the human-areas, foot positions of the persons, person's postures, skin temperatures of the persons and the volume of person's clothes are detected as the personal information according to the personal and environmental characteristic data.

Picture processing apparatus for processing infrared pictures obtained

Growing community of inventors

Osaka, Japan

Takayuki Imai