Olympus Optical Company, Ltd.

Isamu Karasawa

Toshiaki Noguchi

Toshiaki Nishikori

Kazufumi Takamizawa

Masato Toda

Masanobu Koitabashi

Atsushi Amano

Yoshihiro Okada

Keiji Handa

Tsuguhisa Sasai

Masahiko Hamano

Hideyuki Shoji

Yasuyuki Kaneko

Akira Osawa

Ken-ya Inomata

Terutoshi Shigemoto

Akihiro Amemiya

Nobuo Moriya

Koji Saito

Matsumi Oshima

A light source having a lamp for generating light generates a lamp on signal at an output terminal thereof when the lamp is lit. A lamp life meter is connected to the light source for detecting the time that the lamp has been lit. The lamp life meter includes a housing having at least one contact terminal adapted to be coupled to the output terminal of the light source, a clock generator located in the housing and generating clock signals, a counter located in the housing and counting the clock signals whenever the clock on signal indicates that the lamp is on and a display mounted in the housing for displaying an indication of the time the lamp has been turned on.

Lamp life meter and endoscope light source unit

A light source device including a lamp-exchanging door which is attached/removed when a lamp is replaced and an electrode-connection/separation arrangement for making connection/separation between an electrode of a lamp driving circuit and an electrode of a lamp when the lamp-exchanging door is attached/removed.

Light source device

An endoscope system comprises first and second endoscopes each of which includes an elongated insertion tube and an imaging device, a light source for supplying illumination light to the endoscopes, a function for processing a signal originating from one of the imaging devices, and a video processor which mixes the signal with at least a signal sent from an external input terminal and outputs a given video signal corresponding to the first and second endoscopic images. The video signal provided by the video processor is output to a shared monitor, thus displaying two endoscopic images simultaneously.

Endoscope system for simultaneously displaying two endoscopic images on

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Hachioji, Japan

Isamu Karasawa