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:
Jul. 16, 1991
Filed:
Jan. 02, 1990
Kei Mori, Setagaya-ku, Tokyo, JP;
Other;
Abstract
A light distribution device has a first light-guide cable for transmitting light rays, a number of second light-guide cables having light-receiving ends arranged together to form a light-receiving ring plane, a driving means for rotating the light-emitting end of the first light-guiding cable around the light-receiving ring-plane, a light coupler secured at the light-emitting end of the first light-guide cable. The light coupler has a surface similar to that of a part composing the light-receiving ring-plane of the second light-guide cables and makes a circular motion along the light-receiving ring-plane at a constant relation thereto. The light-receiving ring facing to the light coupler is divided into a plurality of blocks, each of which consists of a given number of secondary light-guide cables.