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:
Feb. 26, 2002
Filed:
Mar. 04, 1998
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a linear beam irradiator, more specifically to a linear beam irradiator for using light conductor, comprising a light conductor having light permeability, a light refraction & reflection area provided on one side face in the longitudinal direction of said light conductor, and a light source provided in a way to cover the light refraction & reflection area as well as a light source disposed at one end or both ends of said light conductor. This construction makes it possible to irradiate a linear light beam from the other side face of the light conductor corresponding to said light refraction & reflection area With this construction, it becomes possible to reduce the deviation of illuminance of said linear light beam, sharply improve the transmission efficiency of light and greatly reduce the number of LED chips disposed at the light source. Moreover, this also enables a cost reduction.