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. 26, 2006
Filed:
Jun. 17, 2005
Masakazu Hirata, Chiba, JP;
Manabu Oumi, Chiba, JP;
Koichi Shibata, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
In order to provide a near field light head capable of guiding light efficiently to a near field light generating element, capable of being fabricated easily and at low cost and in correspondence with small-sized formation and thin-sized formation, the near field light head of the present invention has a transparent board including a near field light generating element at a lower face thereof. An upper face or the interior of the transparent board is formed with a lens to be opposed to the near field light generating element. The upper face of the transparent board is mounted with a single mode fiber. The single mode fiber is successively connected with a graded index (GI) fiber and a coreless fiber. An end face of the coreless fiber which is not connected to the GI fiber constitutes a reflecting face disposed at 45 degrees relative to the upper face of the transparent board. The reflecting face is arranged right above the lens.