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:
Oct. 23, 2001
Filed:
Oct. 06, 1999
Shinsuke Kurahashi, Hyogo, JP;
Nobuyuki Haji, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A light beam heating apparatus having a condensing lens mechanism including an aspherical lens and a spherical lens disposed in a light path. The light beam heating apparatus also includes a light source and a light path which transmits the light beam irradiated from the light source, to an object to be heated. The light beam is transmitted through an optical fiber along part the light path, and the aspherical lens and spherical lens are disposed on the optical fiber side and on the object-to-be-heated side respectively. The above-described construction functions to suppress lateral aberration when the diameter of an optical fiber in use is changed, thereby preventing deterioration of the imaging capacity. Also, the occurrence of chromatic aberration can be suppressed to a minimum. Thus, energy concentration in the light condensing section can be improved.