The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1999
Filed:
Sep. 29, 1997
Naoki Hosaka, Tokyo, JP;
Hajime Honda, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A light wave guiding apparatus comprising an offset detector for detecting an offset from a predetermined axis is disclosed. A laser beam irradiator irradiates a laser beam having a maximum irradiation intensity in a predetermined orientation and the irradiation intensity decreasing progressively with the increase in the distance away from the orientation while being conically inclined from a predetermined axis. A photo-detector is located in an area irradiated by the laser beam and outputs a received light signal S corresponding to the irradiation intensity. A memory unit stores the relation between the amount of offset of the photo-detector from the predetermined axis and the received light signal S. The received light signal S of the photo-detector is compared with the data stored in the memory unit and the offset amount of the photo-detector is detected.