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:
Sep. 09, 2003
Filed:
Jul. 30, 1999
Tetsuro Kato, Kanagawa, JP;
Yujiro Ito, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
A light space-transmission device includes a light beam transmitting block for modulating a light beam with information signal and for transmitting the light beam, a first luminous-flux-diameter converting part for enlarging the luminous-flux-diameter of the light beam that is sent from the light beam transmitting block and for transmitting the light beam, a second luminous-flux-diameter converting part for enlarging the luminous-flux-diameter of the light beam that is sent from the first luminous-flux-diameter converting part and for transmitting the light beam. An optical-axis correcting portion is inserted into the optical path of the light beam between the first luminous-flux-diameter converting part, and the second luminous-flux-diameter converting part and controls the angle of the optical axis of the light beam thrown to the second luminous-flux-diameter converting part.