Kabushiki Kaisha Toshiba

Tokyo Kogaku Kikai Kabushiki Kaisha

Keizo Shiihara

Hiroshi Watanabe

Tsuyoshi Ishida

Yukito Matsuo

Hiroshi Saitoh

Hiromitsu Okada

Hironobu Watanabe

Michio Waki

Hiromitsu Kijima

The present invention relates to an optical reader for scanning a surface to be scanned by using information beam ray such as laser beam ray and optically reading a recorded information such as bar code recorded in the surface to be scanned. The optical reader is constituted such that optical beam emitted from a light source is reflected on a first rotary multiface mirror to scan on a surface to be scanned, and information beam reflected on the surface to be scanned is reflected on a second rotary multiface mirror to guide to an opto-electric transforming means. A scanning optical path for permitting the optical beam from the light source to pass therealong is formed independently from a reflecting optical path for permitting the information beam from the surface to be scanned to pass therealong. A condensing lens system including a bore diameter large enough to cover the scanning optical path and reflecting optical path as well as a single optical axis is disposed between the surface to be scanned and the first and second rotary multiface mirrors.

Optical reader

Growing community of inventors

Tokyo, Japan

Keizo Shiihara