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:
Dec. 25, 2007
Filed:
Sep. 16, 2004
Yoshihiro Hashimoto, Kamakura, JP;
Ken Matsuoka, Kamakura, JP;
Shinichi Takagi, Amagasaki, JP;
Katsunori Suzuki, Hamamatsu, JP;
Tetsutsugu Hamano, Iwata-gun, JP;
Yoshihiro Hashimoto, Kamakura, JP;
Ken Matsuoka, Kamakura, JP;
Shinichi Takagi, Amagasaki, JP;
Katsunori Suzuki, Hamamatsu, JP;
Tetsutsugu Hamano, Iwata-gun, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Yamaha Corporation, Shizuoka-ken, JP;
Abstract
An optical component comprises an optical transmission element (e.g., an optical lens) whose circumferential wall partially joins a metal holder via a joining material (e.g., a low melting point glass), wherein stress is normally applied to the optical transmission element in a compression direction when joining the metal holder. The optical transmission element is inserted into a through hole of the metal holder, and the joining material is kept in a bank actualized by a tapered portion formed in proximity to one end of the through hole of the metal holder. This prevents tensile stress from being applied to the optical transmission element; thus, it is possible to avoid the occurrence of cracks and separations in the optical transmission element; and it is possible to avoid the occurrence of errors in optical characteristics, regardless of variations of the environmental temperature, so that, the optical component is improved in reliability.